
November Annual Academic Surgery Conference (NAASC) 2024
Friday 15 and Saturday 16 November 2024
National Wine Centre
Cnr Hackney & Botanic Roads, Adelaide SA 5000













November Annual Academic Surgery Conference (NAASC) 2024
Friday 15 and Saturday 16 November 2024
National Wine Centre
Cnr Hackney & Botanic Roads, Adelaide SA 5000
Program
Friday 15November2024
MorningSessions
9:30am ArrivalandRegistration
10:00am AcknowledgementofCountry GuyMaddern
10:02am WelcomebyChairofAcademicSurgeryCommittee JonathanKarpelowsky
SESSION1:TRANSLATIONANDINNOVATION
Chairs:MatthewRead/GavinLambert
10:04am KeynotePresentation:Howtoignitethesparkofinterestinresearchandmaintainthe passiontochangethefuture FionaWood
Sectionof AcademicSurgery
10:34am Thesurgeonsjourney:technologydevelopment,implementationandcommercialisation JosephIschia
11:04am Howdoyouelevateclinicalinnovationtothenextlevel ParisTriantis
11:19am PanelDiscussion-Q&A
11:26am MORNINGTEA
11:46am SwinburneUniversity-SponsorPresentation SRSOralPresentations
11:49am MeasuringoutcomesoffacialskincancersurgeryusingtheFace-Qskincancermodule SamuelHandshin
11:59am Isroutineaxillarystagingstillrequiredinclinicallynodenegativeearlybreastcancerin womenover74years?
KatherineGrant
12:09pm MajorAustralianurologicalcentreexperienceofactivesurveillanceinISUPprostatecancer andPI-RADS4/5lesion
DarrenLam
SESSION2:NOVELTECHNOLOGY
Chairs:ChrisVarghese/JocelynLippey
12:19pm Applyingdigitaltechnologiestosupportresearch WilhelmIntegratedSolutionsPtyLtd
12:26pm MedicalimageanalysisandAI SergeiBedrikovetski
12:41pm Safeimplementationofroboticsurgery-firstdonoharm HelenMohan
12:56pm Theethicsofearlyadoptionanddevelopmentofnoveltechnology TamNguyen
1:11pm PanelDiscussion-Q&A
1:18pm LUN
Program
Friday 15November2024
MorningSessions
Sectionof
AcademicSurgery
g r a m
SRSPosterPresentations
2:03pm UseofGenerativeArtificialIntelligenceinSurgicalEducation EricYang
2:08pm Theimpactofformalteachinginresearchmethodsafterprimarymedicalqualificationson surgicalresearch:Ananalysisofshort-termresearchoutput MeetPatel
2:13pm TheUtilityofIVCDiameterfortheAssessmentofHypovolaemicShockinAdultTrauma Patients NandiniKarthikeyan
2:18pm TrendsandPredictorsofTotalNeoadjuvantTherapyinRectalCancer:ABi-NationalRegistry StudyacrossAustraliaandNewZealand IshraqMurshed
2:23pm Tertiarycentreexperienceofhigh-volume,low-riskprostatecancer:active surveillance versusradicaltherapy DarrenLam
SRSOralPresentations
2:28pm Combinationofhormonaltherapyandmitochondrial-targetedtherapyasanovelstrategy forbreastcancertreatmentinhumanbreastcancercelllines MariaAhsan
2:38pm CadavericSectioningandScapholunateInstability JoshuaAndrews
2:48pm EvaluationofDeepLearningforHighb-ValueDiffusion-WeightedMRIinBoneandSoftTissue TumourAssessment StevenZhang
2:58pm ProteomicsInternational-SponsorPresentation
3:01pm AFTERNOONTEA
SESSION3:BEYONDRESEARCH
Chairs:JonathanKarpelowsky/SiobhanMcKay
3:21pm IntroductionofSocietyofUniversitySurgeonsSpeaker MatthewRead
3:23pm Work-lifeintegrationforacademicsurgeons SocietyofUniversitySurgeonsPresentation RebekahWhite,SUSPresident2022-2025
3:43pm Overcomingimpostersyndrome(highperformancecoaching) MarkBray
3:58pm Fromarmourandposturingtovulnerableandhuman:becomingarealsurgeon BenLoveday
4:13pm PanelDiscussion-Q&A
Program
Friday 15November2024
AfternoonSessions
Sectionof
AcademicSurgery
SESSION4:ABSTRACTPRESENTATIONS
Chairs:JonathanKarpelowsky/SiobhanMcKay
SRSOralPresentations
4:20pm KeyStakeholderperspectivesonimplementationofRiskBasedbreastcancerscreening JocelynLippey
4:30pm ChronicRenalFailureasaPredictorofPostoperativeMorbidityandSurvivalin Colorectal CancerSurgery:ARetrospectiveMulticenterAnalysis YajatDua
4:40pm ComparisonofIntraoperativeComplicationsinObesevsNon-obeseinLiverCancer Surgery JackMenzie
4:50pm PatientandclinicianprioritiesinPeripheralArteryDiseasemanagementusingMultiple CriteriaDecisionAnalysis NimaIrnapour
SRSPosterPresentations
500pm KinematicandKineticdifferencesinpaediatricandadolescentrecurrent patellofemoral dislocatorsusingasubject-specificgaitanalysismodel AngelAulakh
5:05pm LivingandDyingWell:JuniorDoctors'PerspectiveonConversationswithPatients RegardingResuscitationStatus,DeathandDying TachelleTing
5:10pm Neoadjuvantchemotherapyinlocallyadvancedcoloncancer:asystematicreviewand meta-analysis RathinGosavi
5:15pm OutcomesofaSingleCentreRegionalRenalPhysician-ledDialysisAccessClinic:A ComparativeStudy NimaIranpour
520pm In-vivotestingofBacteriophagetherapyforChronicRhinosinusitiswithAntibiotic and phageresistance KaviyaKalyanasunduram
5:25pm ENDOFPROGRAM-DAY1
6:30pm ConferenceDinner
TheVinesRoom,NationalWineCentre
Program
Saturday 16November2024
MorningSessions
8:00am
SurgicalResearch Societyof Australasia
EarlyCollaborativeStudyIdeasWorkshop Panel:DavidBeard,GuyMaddern,HelenMohan,DavidWatson
9:00am ArrivalandRegistration
9:15am WelcomebyChairofAcademicSurgeryCommittee JonathanKarpelowsky
SESSION5:WHATREALLYMATTERS
Chairs:MattRead/SIobhanMcKay
9:19am Refinancer-SponsorPresentation
9:21am PlenarySpeaker:Whystudiesfail DavidBeard
9:51am Whatistherightquestion:thepatientperspective ChrisBaggoley
10:06am Increasingsurgicaltrials:AGITGandRACScollaborativeopportunities AmiteshRoy
10:21am HowwillRACSsafeguardsupportforsurgicalresearchnowandinthefuture? StephanieClota,CEORACS
10:36am PanelDiscussion-Q&A
10:46am MORNINGTEA
SRSOralPresentations
11:06am Theimpactofchymereinfusiononpost-operativerecoveryfollowingloopileostomy reversal:arandomisedcontrolledtrial ChenLiu
11:16am TheeconomicandenvironmentalfootprintofPrecisionPointprostatebiopsies KylieLim
SESSION6: DATAANDREACH
Chairs:RebekahWhite/GlenGuerra
11:26am BD-SponsorPresentation
11:28am Measuringtheunmeasured-Identifyingmetricsbeyondtheusual MartySmith
11:43am Harnessingthepowerofbigdatathroughcollaboration AngusDixon
11:58pm Howtomap,measureandmeetyourmilestones-makingyourresearchmore impactful EddeSalis
12:13pm PanelDiscussion-Q&A 12:23pm LUNCH
Program
Saturday 16November2024
MorningSessions
SurgicalResearch Societyof Australasia
SRSPosterPresentations
1:08pm Post-OperativeFunctionalAssessmentinAnaemicPatients-aFeasibilityStudy
JaahnaviSaiCheyyur
1:13pm ASurveyofSurgeon'sPerceptionsofDefiningandRecordingComplicationsAssociated withElective,EmergencyandNonoperativeSurgicalAdmissions
MartySmith
1:18pm Comparisonofpre,midandpost-pandemicemergencycolorectalcancerpresentations attheSunshineCoastUniversityHospital
MarcioCoelho
1:23pm Auditofaudiology-ledfollow-upforgrommetinsertion
SophieDunmall
1:28pm EconomicEvaluationof‘WatchandWait’followingNeoadjuvantTherapyinLocally AdvancedRectalCancer:ASystematicReview
IshraqMurshed
SRSOralPresentations
1.33pm Definingthehospitalvolumerequiredtominimisemortalityfollowingesophagectomyfor cancerinlowpopulationdensitycountries
JosipaPetric
1:43pm Defining‘failuretorescue’afterpostoperativecomplications:asystematic reviewand population-basedstudy
CameronWells
153pm OutcomesfollowingLaparoscopicRepairofVeryLargeHiatusHerniasintheMorbidly Obese MathewAmprayil
203pm Non-technicalerrorsassociatedwithadverseeventsintheAustraliansurgical population:aneight-yearretrospectiveanalysis
2:13pm
JesseEy
Cephid-SponsorPresentation
SESSION7:JEPSONLECTURE
Chair:GuyMaddern
2:16pm IntroductionofJepsonLecturer GuyMaddern
2:19pm JepsonLecture-Drivingchangeinsurgery-Evidence,opinionorbelief? DavidWatson
Program
Saturday 16November2024
AfternoonSessions
SurgicalResearch Societyof Australasia
SESSION8: INVITEDUSAPRESENTERSFROMTHESUSANDAAS Chairs:DavidBeard/HelenMohan
2:39pm IntroductionofAssociationforAcademicSurgerySpeaker JonathanKarpelowsky
2:41pm
AorticTissueCytokinesareincreasedinindividualswithaorticaneurysmaland occlusivedisease
MohamedZayed-AASOverallBestAbstractbyanAASMemberAwardRecipient2023
3:01pm Immuneeffectsofirreversibleelectroporation RebekahWhite
3:16pm PanelDiscussion-Q&A
3:21PM AFTERNOONTEA
3:41pm NexusMD.AIPtyLtd-SponsorPresentation
SRSOralPresentations
3:44pm TheSterileCockpit-Whatcanwelearnfromaviation?
EllieTreloar
3:54pm
Theeffectsofpreoperativeoralantibioticsonanastomotichealingandmucosal microbiomeinamousemodelofcolonicresection
SamwelMakanyengo
4:04pm PredictorG-AmulticentretranslationalpersonalisedmedicineapproachinColorectal PeritonealMetastases
AnshiniJain
4:14pm PlasmalignocainelevelsafterIVlignocaineinfusionandregionalabdominalwallblocks inlaparoscopiccolorectalneoplasiaresectionsurgery NicoleTham
SESSION9: FINALSESSION Chairs:MattRead/DavidWatson
4:24pm Researchcollaborativeupdate-whereareweandwhereshouldwebegoing? ChrisVarghese
4:34pm EarlyCollaborativeStudyIdeasFinalistsPresentation1 SelectedfromEarlyCollaborativeIdeasWorkshopPresentations
4:39pm EarlyCollaborativeStudyIdeasFinalistsPresentation2 SelectedfromEarlyCollaborativeIdeasWorkshopPresentations
4:44pm SRSAwardPresentations JonathanKarpelowsky
5:04pm ClosingRemarks MatthewRead
5:14pm ENDOFPROGRAM
WelcometotheNovemberAnnualAcademicConference2024!
AnticipationmountsaswegearuptohostthiseventattheNationalWineCentrein Adelaide,SouthAustralia Ourdiligentcommitteehasmeticulouslycuratedan outstandingprogram,showcasingadistinguishedrosterofspeakerspoisedtodelve intopivotalsubjectswithinacademicsurgery Theirpresentationsarepoisedto captivate,inspire,andkindleyourenthusiasmforthefield.
WeextendawarmwelcometoourcolleaguesfromtheUnitedStates,includingDr RebekahWhite,PresidentoftheSocietyofUniversitySurgeonsandDr Mohamed ZayedfromWashingtonUniversityinSt.Louis,whowillbejoiningus.
Thisyear,weareprivilegedtowelcomeProfessorDavidWatson,HeadoftheFlinders UniversityDepartmentofSurgeryandisanOesophagealandGastricSurgeonat FlindersMedicalCentre,ashedeliverstheesteemedJepsonLecture.
Weextendourthankstothededicatedorganisingcommittee(RACS)fortheirhard workincoordinatingthisconference Wealsorecognisetheexceptionalcolleagues whocontributedsignificantlytothesuccessofthissignificantannualevent facilitatedbytheSectionofAcademicSurgery
TheSectionofAcademicSurgeryhasdecidedtocombinetheDevelopingaCareer andSkillsinAcademicSurgeryprogramwiththeNovemberAnnualAcademic SurgeryConference(NAASC)in2025 Thisstrategyenablesustofocusourresources onasingleevent,ensuringitupholdsthehighestqualitystandards Weeagerly anticipatethisnewformatandlookforwardtoseeingyouin2025
Ouragendathisyearhasbeenthoughtfullydesignedtooffervaluetoallparticipants, nomatterwheretheyareintheircareers
Wewishyouawonderfuldayandtrustthattheconferencewillbebothenlightening andmotivatingforyou
ProfessorJonathanKarpelowsky Chair,AcademicSurgeryCommittee Chair,SurgicalResearchSocietyofAustralasia
Committee
WelcometotheNovemberAnnualAcademicSurgery ConferencefromtheOrganisingCommittee!
Weareexcitedtopresentacarefullycraftedprogram thatexploresthesignificanttopicsofLeadershipand Engagement,CreatingImpactthroughResearch,andthe ImpactofBigDataonSurgery
Ourlineupincludesawell-balancedmixofpresentations thataimtoengageattendeesatallstagesoftheir careers
Thisyear'sprogramhasundergonechangesin anticipationforthenewcombinedDevelopingaCareer andskillsinAcademicSurgeryCourseandNAASCin 2025.TheConferencehasbeenrescheduledtoaFriday andSaturdayformatandthepreviouslystand-alone SurgicalResearchSocietydayandAcademicSurgery dayhavebeenmergedintoacohesiveprogram Quick oralpresentationshavenowbeensubstitutedwith posterpresentations Wearethrilledtoannouncethat wereceivedmorethan80abstractsfortheeventwhich isanoutstandingresult
Forthefirsttime,wewillhostan‘EarlyCollaborative StudyIdeasWorkshop’togathernewcollaborativestudy ideasfromAustraliaandNewZealand Selectedideas willbepresentedtoapanelofexpertsinsurgicaltrials andresearchmethodologiesforfurtherdevelopment Thetoptwoideaswillbeshowcasedonthefinalday, withaprizeawardedforthebestpresentation
WearehonouredtohaveDrRebekahWhiteasour speakerfromtheUnitedStateswhowillpresent“Immune effectsofirreversibleelectroporation” DrWhiteisthe ProfessorofSurgeryattheUniversityofCalifornia,San DiegoandPresidentoftheSocietyofUniversitySurgeons, USA
Awarmwelcomeisalsoextendedtoouresteemedguest speakerfortheAssociationforAcademicSurgery(AAS), Dr MohamedZayed Dr Zayedwillbepresentingonthe topic,“AorticTissueCytokinesareIncreasedin IndividualswithAorticAneurysmalandOcclusive Disease,”whichhasbeenrecognisedastheAASOverall BestAbstractbyanAASMemberAwardRecipientfor 2023
Wetrustthatyouwillenjoytheconferenceandfindit thought-provokingandinsightful
DrMatthewRead OnbehalfoftheNovemberAnnualAcademicSurgery ConferenceOrganisingCommittee
We’reanAustralianownedhealthcaretechnologycompanyonamissionto improvehealthinAustraliaandNewZealand
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RebekahWhite,MD,isasurgicaloncologistandProfessorofSurgeryatUniversityof CaliforniaSanDiego(UCSD)
ShecompletedmedicalschoolandgeneralsurgeryresidencyatDukeUniversityin NorthCarolina Duringresidency,sheworkedforthreeyearsinanucleicacid therapeuticslaboratory,whichwouldbecomethefocusofherresearchcareer
Aftergeneralsurgeryresidency,shecompletedsurgicaloncologyfellowshipat MemorialSloan-KetteringCancerCenterthenreturnedtoDukeasfacultyin2007She becameinterestedinirreversibleelectroporation(IRE),bothasaclinicaltherapyfor patientswithlocallyadvancedpancreaticcancerbutalsoforitspotentialtohelp overcomesomeofthebarrierstodeliveryofnucleicacidtherapeuticstotumors.
In2016,shewasrecruitedUCSD,whereherNIH-fundedlaboratoryiscurrentlyfocusedonnoveltherapeuticapproachesto pancreaticcancer,includingaphaseIclinicaltrialofIREcombinedwithimmunotherapy
HerUCSDtimeisdividedroughly50/50betweenclinicalandresearchactivities OutsideofUCSD,sheisinvolvedinseveral surgicalorganizations,includingtheSocietyofUniversitySurgeons(asaPast-President).
WashingtonUniversityinStLouis,USA AssociationforAcademicSurgery(AAS)OverallBestAbstractbyan AASMemberAwardee
Dr.MohamedZayedisavascularsurgeon,scientist,academicentrepreneur,and educator HeiscurrentlytheChiefoftheDivisionofSurgicalSciencesandProfessor withTenureinSurgery,Radiology,andMolecularCellBiologyatWashington UniversitySchoolofMedicine.HeisalsoanaffiliatedProfessorofBiomedical EngineeringattheWashingtonUniversityinSt.LouisMcKelveySchoolof Engineering Dr ZayedearnedanMDandPhDfromUNC-ChapelHill,andanMBA fromWashingtonUniversity Hecompletedhissurgicaltraininginvascularsurgery atStanfordUniversity
HeisaBoardofSurgerycertifiedvascularsurgeonandcurrentlypracticesgeneralvascularsurgerywithafocuson peripheralarterialandvenousocclusivedisease HeisrecognizedasadistinguishedfellowoftheSocietyforVascular Surgery(DFSVS),afellowoftheAmericanHeartAssociation(FAHA),andafellowoftheAmericanCollegeofSurgeons (FACS).HewaspreviouslyaVascularCuresFoundationWylieScholar,andanAmericanSurgicalAssociation(ASA) FoundationFellow
AtWashingtonUniversity,Dr ZayediscurrentlyDirectorofVascularSurgeryResearch,andDirectorofthemultidisciplinaryCardioVascularResearchInnovationinSurgeryandEngineering(CVISE)Centerthataimstosynergize surgeonsandengineersindiscovery,testing,andcommercializationofnovelbiomedicalconcepts
HeisPIandCo-PIofmultipleactiveNIHandfoundationresearchgrantsevaluatingcriticaltopicsinatheroprogression, aorticaneurysmaldiseaseformation,molecularimagingofvasculardisease,andxenotransplantationusingvascular grafts
Overthepast5years,Dr Zayedhasfiled>40patentapplications,wasawarded4issuedUS patents,andhasco-founded threestartupbiomedicalcompanies.
ProfessorDavidWatson
ProfessorWatsonisProfessorandHeadofSurgeryatFlindersUniversity,andan OesophagogastricSurgeonatFlindersMedicalCentreinAdelaide
Hisinterestsincludegastro-oesophagealreflux,andoesophagogastriccancer He leadsresearchaddressingbenignandmalignantesophagealdisease,integrating laboratory,clinicalandpopulationresearchstreams
Hehaspublishedmorethan500papersandbookchapters ProfessorWatsonledthe establishmentoftheAustraliaandAotearoaNewZealandGastricandOesophageal SurgeryAssociation(AANZGOSA)asitsfoundationPresidentfrom2006-10
HehasservedonCouncilfortheAustralianAcademyofHealthandMedicalSciences(AAHMS) HeisaPast-Presidentfor theInternationalSocietyforDiseasesoftheEsophagus(ISDE),andwasClinicalDirectorfortheRACSClinicalTrialsNetwork AustraliaandNewZealand(CTANZ)from2018-23
ProfessorWatsonhasbeenarecipientoftheJohnMitchellCrouchFellowshipfromtheRACS,aJamesIVTravelling Fellowship,HonoraryFellowshipoftheRoyalCollegeofSurgeonsofEdinburgh,electiontoFellowshipoftheAustralian AcademyofHealthandMedicalSciences,andappointmenttoaMatthewFlindersDistinguishedProfessorshipatFlinders University
RefinancerisAdelaide’sbestreviewed brokeragelocatedat67-69SydenhamRoad, Norwood,SA,5067
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ThinkingofgainingAmericanCollegeofSurgeon’s Fellowship?ApplicationsforInternationalFellowship closeDecember1st ContacttheANZChapter secretariatatanz.acs@surgeons.orgforfurther informationonapplyingforFellowshipand becomingamemberoftheANZChapter.
TheANZChapteroftheACSisproudtosupportthe SRSNovembermeeting
Elsevierisaglobalinformationanalyticsbusinessthathelps institutionsandprofessionalsadvancehealthcare,open scienceandimproveperformanceforthebenefitofhumanity
ThroughtheRACSLibraryyouhaveaccesstoClinicalkey wwwclinicalkeycomauClinicalKeyprovidescliniciansand researcherswithaccesstotheeBooks,Journals,Clinical Overviews,AMHDrugMonographs,latestresearchincluding ClinicalTrials Userscanalsotracktime-basedCME/CPDwhen reviewingeBooks,JournalsandClinicalOverviews
Ifyouwouldlikemoreinformationpleasereachouttothe RACSlibraryorcontactcustomerengagement@elseviercom
ProfessorChrisBaggoleyAO,enrolledintheFlinderspostgraduatemedicalprogram in1974aftercompletingadegreeinveterinaryscience,decidingthathisdestinylay inhumanhealthcare
ProfessorBaggoleywasappointedChiefMedicalOfficerfrom2011to2016and quicklyhadtocometotermswiththecontradictionsbetweenapublicafflictedby epidemicsofnon-communicablediseasessuchasobesityandheartdisease,but primarilyengagedinconcernoverrelativelyrarecommunicablediseases,suchas Ebolaandnewformsofinfluenza
HeistheDeputyChairoftheAustralianPancreaticCancerFoundationsince2020 andisalsoaboardmemberofCalvaryHealthcareandFlindersCharlesDarwin UniversitiesHealth
Chrisalsoservesonthefollowingcommittees:
WorldHealthOrganisation:IndependentOversightandAdvisoryCommitteefortheWorldHealthEmergency Programme 2021
CalvaryHealthcare:ClinicalGovernanceCommittee–Chair.2021
SAHealth:PaediatricCochlearImplantOversightCommittee–Chair 2023
AustralianMedicalCouncil:RecognitionofRuralGeneralistMedicineasasubspecialtyofgeneralpractice–Chair 2023
CancerAustralia:AustralianComprehensiveCancerNetworkCommittee,consumerrepresentative.2024
DavidBeardisProfessorandSurgical&ComplexInterventionTrialsProgramLeadat theNHMRCClinicalTrialsCentre,UniversityofSydneyinaroleevaluating(panspecialty)surgerybutwithaspecialinterestinMSKandplastics HeisalsoProfessor ofMusculoskeletalandSurgicalSciencesattheNuffieldDepartmentof Orthopaedics,RheumatologyandMusculoskeletalSciences(NDORMS),Universityof Oxford,andtheRCSEngDirectoroftheSurgicalInterventionTrialsUnit(SITUNDORMS)
Clinicallyqualifiedasaphysiotherapist,hehasMastersdegreesinBiomedical Science(KCLLondon,andOxon),aDoctorateinMedicine(Oxon),andhonorary fellowshipsfromtheRoyalCollegeofSurgeonsFRCS(Eng),andtheBritish OrthopaedicAssociation(FBOA)
Asaclinicianscientist,heisaninternationallyrecognisedexpertinsurgicaltrialsevaluationandhasledmanyunique designpractice-changingtrials(ACLSNNAP,CSAW,TOPKAT),allpublishedinveryhigh-leveljournals HeisalsoaNIHR SeniorInvestigatorandanNHMRC(L3)Investigator
MarkJBray
Founder/Director-MakeOne’sMark MeetMark,Investor,ExecutiveCoach,andMentorExtraordinaire
Withover35yearsofinternationalexperienceinthemultipleindustries,Markisa dynamicleaderknownforhisgroundbreakingstrategiesandvisionaryleadership He’s notjustaboutguidingbusinesses;he’spassionateaboutunlockingtheextraordinary withinindividuals,helpingthemexceedtheirownexpectationstouncoverwhattruly drivesthem.
Mark’suniquetalentliesinconnectingpeopletotheirinternalcompass,aligningtheir valueswiththeiractions,andunleashingtheirfullpotential Hisprovensuccessin revitalisingbusinessesspansacrosspeople,strategy,andworkspaces makinghima highlysought-afterspeaker
DrSergeiBedrikovetskiisanAdjunctSeniorLecturerandResearchOfficeratthe UniversityofAdelaideandamemberoftheRoyalAdelaideHospitalColorectal ResearchGroup HeholdsaBachelorinHealthSciencesfromtheUniversityof Adelaide,wherehewasawardedfirst-classhonoursin2018.
In2023,hecompletedhisPhDincolorectalcancersurgery,receivingtheDean’s CommendationforDoctoralThesisExcellence FollowinghisPhD,hespentayear workingasaResearchOfficeratRoyalAustralasianCollegeofSurgeonsinAdelaide.
Sergei’sresearchinterestsincludesurgicaloncology,neoadjuvanttherapiesfor advancedrectalcanceranddevelopmentofstatisticalandartificialintelligence predictionmodels.
StephanieClotaistheCEOofRACSandahighlyrespectedandexperienced leaderwitharemarkabletrackrecordofsuccessinthehealthcareand trainingsectors
Herexpertiseisinstrategicdecision-making,financialperformance,policy andadvocacyandcorporategovernance
Herabilitytobuildandmaintainkeypartnershipswithgovernment,private, andnot-for-profitorganisationshasbeeninstrumentalinstrengthening practitionerdevelopmentandensuringitmeetstheevolvinghealthcare needsofcommunities
Edbringsover25yrsexperienceininvestmentbanking,dataanalyticstechnology andpredictivemodelling
HehasworkedforinternationalinvestmentbanksinAsiaandNewYorkandmanaged thetreasuryriskmitigationteamsforHBOS/Lloyds,NomuraandNABinAustralia.
Morerecentlyhefoundedtwodatadrivensoftwarestartupsandaftersuccessfully exitingin2021,heworkedondata&AIprojectsforIAG.EdholdsaBCommAccounting andFinance(UNSW),DiplomainAppliedFinance(FINSIA)andAI:Implicationsfor BusinessStrategyProgram(MITSloanSchoolofManagement)
Withover30yearsofexperienceinthehealthcaresector,AngusDixonhasheldkey leadershiprolesinbothinternationalandAustralianhealthcareorganizations,including Stryker,aswellasAustraliancompaniessuchasSurgicalSpecialtiesandGlobal Orthopaedics.
Hisexpertisespansorthopaedicmedicaldevicesand,morerecently,hospitalfacility upgrades,withaparticularfocusonhigh-riskclinicalareassuchasoperatingrooms, intensivecareunits,andemergencydepartments.
Since2018,AngushasworkedwithWilhelmIntegratedSolutions,whereheledinitiativestoimprovepatientoutcomes, particularlybyreducingcomplicationsrelatedtoinfections Drivenbyapassionforenhancingpatientsafetyandreducing infectionrates,AngusledaMedicalAdvisoryPanelfocusedonHealthcare-AssociatedInfections(HAIs).Thisworkculminated inthefoundingoftheDaylightFoundationin2023,anot-for-profitorganizationcommittedtodrivinginfectionratestozero andsavinglives Formoreinformation,pleasereachoutatangus@daylightfoundationorgauorvisitourwebsiteat wwwdaylightfoundationorgau
DrJosephIschiaisaurologistatAustinhealthandanAssociateProfessorat theUniversityofMelbourne.
Hestartedapodcastin2016,TalkingUrology,whichlooksbelowthehoodof thelandmarkpapersinurology.
HeistheCEOandfounderofAkeekothathasdevelopedauretericstent insertiondevicewhichisanoperatingroominthepalmofyourhandthat hasthepotentialtotransformthemanagementofacuterenalcolic.
DrBenjaminLovedayisHeadoftheHepatobiliaryandUpperGIUnitatthe RoyalMelbourneHospital,cancersurgeonatthePeterMacCallumCancer Centre,DirectoroftheUpperGastrointestinalTumourStreamacrossPeter MacandtheRoyalMelbourneHospital,andHonoraryClinicalAssociate ProfessorattheUniversityofMelbourne
BenismarriedtoaPaediatricianwhorecentlysubmittedherPhD,andthey havetwohighschoolagedchildren.
Thereare8musicalinstrumentsandaballetbarreinhishouse,representing wherethefamilyinvesttheirtime
MBBChBAOBMedSciFRCSIFRACSPhDDipClinLeadershipDRCOG
Dr HelenMohanisanIrishtrainedclinician-researcherandsurgicaleducator workinginAustralia.Sheisaconsultantsurgicaloncologist,roboticandcolorectal surgeonatPeterMacCallumCancerCentreandAustinHealth,MelbourneAustralia HelengraduatedfrommedicalschoolwithfirstclasshonoursatUniversityCollege Dublin(UCDDublin)in2007andsubsequentlycompletedpost-graduatebasicand highersurgicaltrainingattheRoyalCollegeofSurgeonsofIreland.
ShemovedtoAustraliain2021topursuefellowshiptraininginroboticandadvancedcancersurgery Shecompleted fellowshipsatPeterMacCallumCancerCentreandAustinHealth,andcurrentlypractisesasaConsultant/StaffSurgeonat bothsites.Herclinicalinterestsincluderoboticapproachestocolorectalcancer,cytoreductivesurgeryandHIPECandpelvic exenteration.
SheisaSeniorLecturerattheUniversityofMelbourne SheisthesectioneditorforSurgicalLearningontheJournalofRobotic SurgeryandonthecolorectaladvisoryboardforEJSO SheisafoundingmemberoftheIrishSurgicalResearchCollaborative (ISRC)andtheInternationalColorectalOutcomesRegistryCollaborative(ICORC).Shehasover120peer-reviewedpubmed indexedpublicationsinthepast5yearsandaHindexof30.Shetakesanactiveleadershiproleinroboticsurgicaleducation andwasanauthorontheRACSroboticworkingpartyreport SheistheDirectorofClinicalResearchattheInternational MedicalRoboticsAcademy(IMRA)andhassetupagraduateresearchprogrammeonadaptivetrainingsolutionsinminimally invasivesurgeryatIMRA.
DuringhersurgicaltrainingshewasthePresidentoftheAssociationofSurgeonsinTrainingin2017,representingallsurgical traineesintheUKandIreland ShesubsequentlyrepresentedUKandIrishsurgicalcolorectalsurgicaltraineesontheDukes ClubtoACPGBI Shedevelopedanddeliveredaneducationalprogrammefortheadvancedcancercommitteeofthe AssociationofColoproctologistsofGreatBritainandIreland(ACPGBI)in2021.ShewastheRCSIProgressinsurgeryfellowship recipient,andtheRACS/TourdeCureCancerscholarshiprecipient.
SheattainedbothFRCSIandFRACS,aswellasdiplomasinclinicalleadershipandobstetricsandgyanecology Sheundertook 3yearsofresearchatUCDDublinandwasawardedaPhDin2016
Sheisabusymotherof4children-4yearoldtwins,ababyanda7yearold.
AssociateProfessorTamNguyenhascloseto25yearsofworkinginthe healthcare,health&medicalresearchsectorincludingtertiaryteachinghospitals andresearchinstituteacrossAustralia
TamistheDeputyDirectorofResearchatStVincent’sHospitalMelbourne,oneof thelargesttertiaryteachingandresearchhospitalsinMelbourne-responsiblefor theorganisation’sresearchstrategy,researchethicsandgovernance,clinical trials,researchinnovationanddevelopment SVHMispartofStVincent’sHealth AustraliaNetwork–a$3Bhealthcarenetworkandthesecondlargesthealthcare providerinAustralia.
TamteachesvariousAustralianandinternationaluniversities(NTUinSingaporeandDresdenInternationalUniversity inGermany)onvarioustopicsincluding:RWEinclinicalresearch;ClinicalEvidenceinDigitalHealthandAIValuebasedHealthcare HecurrentlyholdsacademicappointmentswithMelbourneMedicalSchoolandMonashMedical School-twooftheworldtop30(andAPACtop5)medicalschools
Taminvestsandadviseshealthtechstar-upandscale-upcompanies.He’sanInvestmentCommitteemember, Horizon3Healthcare,a$100Mfundinvestinginhighqualitybiotechandmedtechcompanies Asanindependent consultant,TamworkedwithvariouslocalandinternationallargeenterprisesandSMEs onclinicaltrialstrategy,Australia’smarketanalysisandmarketexpansion,patientengagementandclinicaltrials technologydevelopment.
HeisaregularinvitedspeakeronabroadrangeoftopicsonAIinHealthcareandhealthcareinnovation Hechairs andmoderatesatnumerousnationalandinternationalconferences Tamistheco-editoroftherecentlypublished bookAIinMedicine:Applications,LimitationsandFutureDirections(SpringerNature).
A/ProfAmiteshRoyisaseniormedicaloncologistattheFlindersMedicalCentre(FMC) andclinicianresearcherinFlindersCentreforInnovationinCancer,FlindersUniversityin SouthAustralia
Heisregardedanexpertinthemanagementingastrointestinal(GI)malignancies,with extensiveexperienceinearlyphasetolatephaseclinicaltrialdesignandsetup,and translationalresearchinGIcancers Heisoneofthefoundingmembers(co-Director)of theSouthernOncologyClinicalResearchUnit,aphaseIunitbasedinAdelaide Heisa currentmemberoftheCancerState-wideClinicalNetworksteeringCommitteeinSouth Australia
A/ProfRoyisthecurrentDeputyChairoftheAustralasianGastro-IntestinalTrialsGroup’s (AGITG)UpperGICancerWorkingPartyandamemberoftheScientificAdvisory CommitteeandResearchOperationsCommitteeinAGITG
Hehasco/authored>120publicationsincludingpublishedpapers,conferenceabstracts andbookchaptersandhasreceived$3.5millionincontinuousfundingoverthelast5 years,includingfundingfromtheMRFF,CancerAustraliaandindustryfunding
DrMartySmithspecialistHPBandGeneralAcademicsurgeonworkinginMelbourne
WiththebackgroundofacompletedBachelorofScience(GeneticsandMicrobiology) DrSmithwentontostudyMedicineattheFlindersUniversityofSouthAustralia(BMBS) DrSmiththentrainedingeneralsurgeryattheAlfredhospitalinMelbourne completinghisfellowshipinJanuary2004.HethenundertookanUpperGIand HepatobiliaryfellowshipattheWesternHospitalinMelbournebeforetravelling overseasforfurthertraining
IntheUKhecompletedanUpperGI(Oesophagogastric)fellowshipatAddenbrookes hospitalinCambridgethenaHepato-pancreato-biliary(HPB)Surgicalfellowshipat theRoyalLondonHospital HethenspenttimeworkingwiththeLivertransplantunitat KingsCollegehospitalinLondonbeforereturningtoAustralia
DrSmithiscurrentlytheDirectoroftheHPBSurgeryunitatTheAlfredHospitalperformingHPB,UpperGastro-intestinal,General andTraumasurgery.HehasrecentlycompletedaDoctorateinClinicalSurgerythroughTheAlfredandtheUniversityofSydney successfullysubmittingathesisexaminingqualitymarkersinAcuteGeneralSurgery.HealsoworkswiththeVictorianHPB surgeryGroupatCabriniandprovidesgeneralsurgeryconsultingandoperatingatKynetonhospital
DrSmithisalsoinvolvedinsurgicalteachingatundergraduateandpostgraduatelevelsandisaformerBoard-Memberofthe ANZHPBAssociationandisacurrentmemberoftheRACSCourtofFellowshipexaminers.
Paraskevi(Paris)TriantisistheDesignCoachforMedTechVicandhasa backgroundinArchitecture,UrbanDesign,InteriorDesignandInnovationwithin healthcare
ParishasbeenlecturingOccupationalTherapyandArchitectureMastersstudents atSwinburneUniversitysince2019,andbringsthisexperienceintoMedTechVic Paris'roleseesherdevelopingworkshopsforco-designandinnovationwith variousstakeholdersandpeoplewithlivedexperienceofdisability,aswellas leadingprojectsandconductingresearch,reportsandpublicationsforvarious projectswithinMedTechVic
ParishasalsodevelopedandruntheClinicalInnovationFellowshipat MedTechVicsinceitsinceptionin2021,providingherwithadeepunderstandingof theclinicalinnovationprocess
Paris'passionliesindevelopinghuman-centredsolutionswithinhealthcare, bringingenthusiasmandfuntotheprocess.
ChrisVargheseisajuniordoctorandPhDcandidatepursuingacareerin academicgeneralsurgery Hisresearchinterestsincludesurgicalrecovery, GIphysiology,andusingdigitalhealthtoimprovepatientcare.
Since2016,ChadandtheWilhelmIntegratedSolutionsteamhavebeenrewritingthe rulesofhealthcaretechnologyinAustralia Backedbymanyyearsofindustryknowhow,they’reonamissiontodisruptthemarketwithfreshapproachesthatput cuttingedgesolutionsattheforefront.
Knownforitsoutstandingreputationforinnovationandservicedelivery,Wilhelmis challengingthestatusquo,blendinghomegrowninnovationwiththebestfrom trustedglobalpartners.Ourcommitment?Toempowerclinicians,improvepatient outcomesanddrivetruechangeinhealthcarebydrivingefficienciesanddelivering moresustainableOR,ICUandEDfacilities;greatlyimprovingradiationsafetyfor interventionalistsand theirteams;deliveringdatadrivendigitalsolutionsenhancingpatientoutcomes;and prioritisinginfectionpreventionandcontrol
Chad’svisionisclear:todeliversolutionsthatdon’tjustmeetindustrystandardsbut pushthemforward.Byfocussingoninnovation,efficiencyandsustainability,Wilhelm isleadingtheconversationacrossAustraliaandNewZealand
ProfessorFionaWood
WinthropProfessorFionaWoodAOUniversityofWesternAustraliaisaPlastic& ReconstructiveSurgeonspecialisinginthefieldofburncare,traumaandscar reconstruction.
AsDirectoroftheBurnsServiceofWesternAustraliasince1991sheisconsultant surgeonatboththeSouthMetropolitanHeathService,FionaStanleyHospitaland theChildandAdolescentHealthService,PerthChildren’sHospital.
AsdirectorofBurnsInjuryResearchUnitsheleadsaninterdisciplinaryteamwith broadcollaborationfocusedontranslationtoimproveclinicaloutcomes
ShewasAustralianoftheyearin2005andsitsonanumberofboardsincludingthe RoyalFlyingDoctorService
SamuelHandshin(presenter1,2,3),MaryIengo(1,2,3),TamaraCrittenden(1,2,)Phillipa vanEssen(1,2)AndreaSmallman(1),NicolaR Dean(1,2)
1 DepartmentofPlasticandReconstructiveSurgery,FlindersMedicalCentre,BedfordPark, Adelaide,SouthAustralia,Australia
2.CollegeofMedicineandPublicHealth,FlindersUniversity,BedfordPark,Adelaide,South Australia,Australia
3 Denotesjointfirstauthorship
Background:Facialskincancersandsurgicalmanagementcanalterappearance Thiscontributestopatient morbiditythrougheffectsonself-perceptionandpsychosocialwell-being Quantitativeassessmentofimpacts canbeundertakenusingapsychometricallyvalidatedpatient-reportedoutcomemeasure,theFACE-Qskin cancermodule.
Methods:Thisisasinglecentre,prospectivecohortstudyof110participantsundergoingfacialskincancer surgeryinanAustraliantertiaryhospitalbetweenNovember2021andDecember2023 Participantscompleted FACE-QSkinCancerquestionnairespre-operativelyandatone,three,six,and12monthspost-operatively.
Results:105participantscompletedpre-operativequestionnaires,ofthese,101(918%),96(873%),93 (845%)and76(691%)completedquestionnairespost-operativelyat1,3,6,and12months,respectively At12months,significantimprovements(p<0.001)werefoundinCancerWorry,AppraisalofScarsandSunProtection Behaviours Agewasfoundtobeasignificantpredictorofoutcomeacrossallscalesandchecklists(p<0001;p =0002)incomparisontoothervariables Beingunder65yearsofagesignificantlypredictedworseCancer Worry(p=002)andAppraisalofScars(p=004) CombinedrepairwasassociatedwithworseCancerWorry (p=0.03).TherewasnosignificantdifferencesinoutcomesobservedbetweenmelanomaandNMSC.
Conclusion:Facialskincancersurgeryimprovespatientreportedhealth-relatedqualityoflife,appearanceand sunprotectionbehaviours Youngerpatientsandthoserequiringreconstructivemanagementmaybenefitfrom targetedperi-operativesupportalongsideinterdisciplinarycare.ClinicalintegrationoftheFACE-QSkinCancer modulewillassisttreatingspecialiststoprovideindividualisedcaretopatients
ISROUTINEAXILLARYSTAGINGSTILLREQUIREDINCLINICALLYNODENEGATIVEEARLYBREASTCANCERIN WOMENOVER74YEARS?
KatherineGrant(presenter,1,2),JamesPo(3),LeongTiong(1)
1 DepartmentofSurgery,RoyalAdelaideHospital,Adelaide,SouthAustralia
2 UniversityofAdelaide,Adelaide,SouthAustralia
3.RoyalMelbourneHospital,Melbourne,Victoria
Introduction:Investigateincidenceandidentifypredictorsofaxillarylymphnodemetastasesinearlybreast cancerinwomen>74yearsAustraliaandNewZealandtoinformdecisionmakingaboutsentinellymphnode (SLN)biopsyinthispopulation
Method:RetrospectivereviewofinvasivebreastcancerinwomeninAustraliaandNewZealandbetween20102022usingBreastSurgANZQualityAuditDatabase.Dataincludedpatientdemographics,tumourcharacteristics, surgerytype,axillarynodalstatusandadjuvanttherapy.Descriptiveanalysisofincidenceofaxillarynodal metastasesanduseofadjuvanttherapyinvariouspatientandtumourgroupswasperformed,followedby statisticalanalysisusingmultivariatelogisticregressiontoidentifypredictorsofaxillarynodalpositivityand correlationbetweennodalstatusandprescriptionofadjuvanttherapy.
Results:Reviewof127,436casesofinvasivebreastcancer,17,599cases>74years Twothirdsoftheoverall populationandinthose>74yearswerenodenegative Inpatients>74yearswithgrade1-2,T1a-bcancers, ER+/HER2-withoutlymphovascularinvasion,94%werenodenegative.Patientage,tumoursize,gradeand biomarkerprofilecorrelatedwithaxillarynodalstatusandanalysisofadjuvanttherapyrevealedsignificant correlationbetweennodalstageandadjuvantradiotherapy,chemotherapyandendocrinetherapy
Conclusion:94%ofpatients>74yearswithT1a/b,ERpositiveHER2negativebreastcancerwithout lymphovascularinvasionwerenodenegative.Nodalstatussignificantlyinfluencesadjuvanttreatmentand therefore,werecommendcliniciansconsidertumourfactorsandpatientfitnessintheirdecisionmakingabout SLNbiopsyintheelderlypopulationwithhormonereceptorpositiveearlybreastcancer
DarrenLam(presenter1),ShaotingZhang(1,2),KylieYen-YiLim(1),HarrisonLiu(1), JefferyJiang(1),EldoPaul(2),SteuartRorke(3),BeenaKumar(3),SeanLim(1),Matthew Harper(1),KevinChu(1),JamesHuang(1),NeiroshanRajarubendra(1),PaulManohar(1), TrungPham(1),GideonBlecher(1),ScottDonnellan(1),WeranjaRanasinghe(1)
1.DepartmentofUrology,MonashHealth,Melbourne,Australia
2 FacultyofMedicine,NursingandHealthscience,MonashUniversity,Melbourne,Australia
3 DepartmentofAnatomicalPathology,MonashHealth,Melbourne,Australia
Introduction:Activesurveillance(AS)isthestandardofcareforpatientswithISUPGradeGroup(GG)1disease However,therearesomeconcernswithASinGG1patientswithaPI-RADS4/5lesiononmultiparametricMRI (mpMRI) TheaimofthisstudywastoevaluatediseaseupgradinginmenwithISUPGG1andPIRADS4-5lesions
Methods:ISUPGG1patientswithwhounderwentASatatertiaryinstitutionbetween2016and2023withMRIwere identified.AllpatientswereassessedviaPI-RADSversion2.1guidelines.Coxregressionwasusedtodetermine theassociationbetweenPI-RADS1-3and4-5cohortandtheirdiseaseupgradation
Results:Twohundredandtwenty-eightmenwithISUP1diseasewereincluded Ofthese,onehundredand thirty-five(57.6%)patientshadaPI-RADS4-5lesion,whilenighty-three(42.4%)patientshadPIRADS1-3lesions. Therewasasignificantdifferenceinmaximumlengthofpositivecores(p-value=0039),biopsyupgrading(pvalue=0017)andsubsequentradicalprostatectomy(p-value=002)betweenstudycohorts Onrepeatbiopsy, twenty-three(404%)menwithPIRADS1-3andforty-ninemen(583%)withPIRADS4-5wereupgradedto clinicallysignificantprostatecancer(p-value=0.04),withasignificantshortertimetodiseaseupgrading(pvalue=0001) Amongpatientsunderwentradicalprostatectomypostreclassification,154%(2/13)withPIRADS13had≥pT3disease,while477%(20/42)patientswithPIRADS4-5lesionhad≥pT3disease(p-value=009)
Conclusion:PI-RADS4-5patientsshowedahigherlikelihoodofbiopsyupgradingandsignificantlyshortertime todiseaseprogression ISUPGG1diseasewithPI-RADS4/5lesiononMRIwarrantscarefulAS
COMBINATIONOFHORMONALTHERAPYANDMITOCHONDRIAL-TARGETEDTHERAPYASANOVELSTRATEGYFOR BREASTCANCERTREATMENTINHUMANBREASTCANCERCELLLINES
MariaAhsan(Presenter,1),PhyuSynnOo(2),SaintNwayAye(2),Purushotham Krishnappa(2)
1 UniversityofNewSouthWales,Sydney,NewSouthWales,Australia
2 PathologyDepartment,SchoolofMedicine,InternationalMedicalUniversity,Kuala Lumpur,Malaysia
Background:Breastcanceristheleadingcauseofcancerdeathforwomenduetotreatmentresistanceof hormonaltherapyandmetastasis Mitochondriahaverecentlyemergedasintriguingtargetsforanticancer drugs.Mitochondriaundergoesdramaticchangesbyfissionandfusion,andDynamin-relatedprotein1(Drp1)is amajorfissionrelatedprotein Drp1phosphorylationatSer616,regulatedbyestrogenandERα,resultsinbreast cancerproliferation Mdivi-1,aDrp1inhibitor,blocksmitochondrialfission,leadingthecellsapoptosis Hence, combiningMdivi-1withhormonaltherapywillbeamoreeffectiveplanforER+breastcancerpatients
Methods:CellviabilityusingMTTassaywasperformedtodeterminetheeffectsofMdivi-1aloneandin combinationwithhormonaltherapyintheMCF7breastcancercellline Immunohistochemistrywasdoneto provethatcelldeathhappenedthroughapoptosis Studentpairedt-testwasusedforstatisticalanalysis
Results:After24hoursinMCF7cells,treatmentstartingfrom10μMMdivi-1showedsignificantcelldeath, comparedtocontrol Inboth48and72hours,significantcelldeathstartedinalowerconcentration(5μMMdivi1) ForMDA-MB-231cells,significantcelldeathwasfoundin25μMMdivi-1after48hours CombinedICI(1μM)and Mdivi-1(10μM)treatmentfor24hoursinducedsignificant,dose-dependentcelldeathinMCF7cellscompared toICIalone
Conclusion:Mdivi-1decreasedcellsurvivalandgrowthofER-positivebreastcancercellscomparedtoERnegativebreastcancercells.Itissuggestedthatcombinationtreatmentismoreeffectivethanhormonal therapyaloneinER-positivebreastcancercellsandmightbethefuturetreatment
MrJoshuaAndrews(presenter,1),MelanieAmarasooriya(2),SimonBellringer(3) GregoryIanBain(4)
FlindersMedicalCentreandFlindersUniversity,BedfordPark,SouthAustralia, Australia 1
2UniversityofMoratuwa,SriLanka
3UniversityHospitalsSussex,Brighton,UnitedKingdom .
4FlindersMedicalCentre,Adelaide,SouthAustralia,Australia
Background:Scapholunateinstability(SLI)isthemostcommonformofcarpalinstability,andwithout accuratediagnosticandsurgicaltechniques,degenerativeandarthriticchangeswilloccur.Surgicaland clinicaloutcomesforSLIremainsuboptimalinpartduetoalimitedconsensusontheroleeachligamentplays towardssupportingthecomplex.Wesystematicallyreviewedcadavericsectioningtoevaluatethestabilising roleofeachligament,andhowinstabilitypatternsarecreated
Methods:ThissystematicreviewemployedPRISMAguidelines,identifying30studiesspecimenswhichmetthe eligibilitycriteria,including376cadavericspecimens Thekeyoutcomemeasureswerescapholunategap (SLG),scapholunateangle(SLA),radiolunateangle(RLA)anddorsalintercalatedsegmentinstability(DISI)
Results:CadavericsectioningrevealedameanincreaseinSLG+20mm,SLA+88°andRLA+18°with sectioningofthescapholunateligament(SLIL) SequentialandcumulativesectioningoftheSLILand additionalligaments,showedthedorsalintercarpalligament(DIC)toproducethegreatestchangeinall outcomemeasures DISIwasinconsistentlyfoundwithsectioningoftheSLILandtheDICorSTT
Conclusions:TheSLIListheprimarystabiliseroftheSLintervalandinstabilitywillnotoccurifitremainsintact CumulativeandsequentialsectioningshowedtheDICtobethecriticalsecondarystabiliser,withtheSTT,RSC andLRLholdingalesserrole DISIwasnotconsistentlyproducedwithsectioning,suggestingthatitisa dynamicphenomenonthatcannotbeusedtoincludeorexcludeligamentousinjury.
EVALUATIONOFDEEPLEARNINGFORHIGHB-VALUEDIFFUSION-WEIGHTEDMRIINBONEANDSOFTTISSUE TUMOURASSESSMENT
StevenZhang(presenter,1)SaraAshtiani(2)EmilySquires(2)ShaneshKumar(3) KerolosHendy(4)AliceAndrawos(4)WanYinLim(3)MinhHieuPhan(6) StephanieWithey(7)AndrewDwyer(8)AngelaWalls(8)GanessanKichenadasse(9) SabaHatami(4)JakubJagiello(10)LukeJohnson(11)Minh-SonTo(2,4,6)
1 FacultyofHealthandMedicalSciences,UniversityofAdelaide,SouthAustralia
2 CollegeofMedicineandPublicHealth,FlindersUniversity,SouthAustralia
3 JoneRadiology,RoyalAdelaideHospital,SouthAustralia
Introduction:Magneticresonanceimaging(MRI)iscrucialinthepreoperativeassessmentofboneandsoft tissuetumours Diffusion-weightedimaging(DWI)estimatestumourcellularityandaggressiveness,andhighbvalueDWIprovidesgreatertumourconspicuity However,highb-valueDWIisnotwidelyavailable Thisstudy exploresthepotentialofdeeplearningforsynthesisinghighb-valueDWIforpre-operativeevaluation.
Methods:30adultpatientsplannedforsurgeryorbiopsyattheSouthAustralianSarcomaandBoneTumour Unitwererecruitedprospectively Deeplearningmodelsweretrainedonlowb-valueDWIandT2-weighted imageswithcross-validation. Performancemetrics includedlearnedperceptualimagepatchsimilarity(LPIPS), structuralsimilarityindexmeasure(SSIM),peaksignalnoiseratio(pSNR)andmeansquarederror(MSE) Synthesisqualitytogroundtruthwasassessedbyradiologistsviaa5-pointLikertscaleandpairwise comparisons StatisticalanalysisinvolvedpermutationtestingforsynthesisqualityandaFriedmantestwith posthocNemenyitestformodelranking.
Results:Thetop3performingmodelswereStochasticDifferentialEquations(SDE),Pix2PixTurbo,and DiscriminatorEdge-AwareGAN TheyachievedpSNR(257,245,256dB),SSIM(0764,0832,0849,range:0-1), LPIPS(0.262,0.0870,0.114,range:0-1)andMSE(0.00342,0.0170,0.00297,range:0-1).Likertscalefrom3 radiologistshadamodeof4andmedianof4,withpairwisecomparisonsindicatingpreferenceforSDE
Conclusions: Deeplearningshowpromiseinsynthesisinghighb-valueDWI/ADC,potentiallyenhancingpreoperativeevaluationofboneandsofttissuetumours.Futureworkaimstoincorporateanomalydetectionto improvetheidentificationofmalignantlesions
Jocelyn Lippey (presenter, 1, 2, 3), Louise Keogh (4), Stephanie Best (5), Ian Campbell (6),BruceMann(7),LauraForrest(3,8)
1 St Vincent'sHospital,DepartmentofSurgeryandAcademyofSurgeons,Fitzroy,Victoria 2.UniversityofMelbourne,DepartmentofSurgery,Carlton,Victoria 3 SirPeterMacCallumDepartmentofOncology,NorthMelbourne,Victoria
4 UniversityofMelbourne,MelbourneSchoolofPopulationandGlobalHealth,Parkville,Victoria
5 UniversityofMelbourne,Medicine,DentistryandHealthSciences,Parkville,Victoria
6.PeterMacCallumCancerCentre,CancerGeneticsLaboratory,NorthMelbourne,Victoria
7 RoyalMelbourneHospital,BreastService,Parkville,Victoria
8 PeterMacCallumCancerCentre,ParkvilleFamilialCancerCentre,NorthMelbourne,Victoria
Introduction:Riskbasedbreastcancerscreeningmovesawayfromourcurrentonesizefitsallmodeltoa tailoredapproachwerepeoplewouldhavedifferentscreeningmodalitiesandfrequenciesdependentontheir individualrisk
Thisprojectassesseswhatkeystakeholders,definedasthoseinpositionsofmanagementanddecision makingforBreastScreeninginAustralia,thinkofimplementingriskbasedscreening.
Method:Aqualitativeapproachwasundertaken,recruitingparticipantsthroughprofessionalnetworksand implementationframeworksdirectedinterviewguides.Thecodebookwasdevelopedforthematicand contentanalysisoftheinterviews.Codingwasdonebothdeductivelyandinductively.
Results:21participantswererecruitedand20interviewswereconducted 144initialcodeswereconsolidated into17barriersandenablers.Thesixenablersidentifiedwere:‘NationalBreastScreenreviewcurrently underway’,‘Organisationsmotivationtoimprove’,‘Theopportunityforimprovedhealthofanindividual’and ‘Improvedscreeningforall’ 11barrierswere‘Worseningthecurrentinequities’,‘Dichotomybetweenriskinan individualandriskforapopulation’,‘Current‘payperscreen’modeloffundingisnotcompatiblewithrisk basedscreening’,‘Heterogeneitybetweenjurisdictions’,‘BreastScreenisnotaresearchorganisation’, ‘Competingpriorities’,‘Healthliteracy’,‘Individualsperceptionformotivationofchange’,‘Costofriskbased screening’,‘Issueswithriskassessment’and‘Whatisoptimalscreeningfordifferentriskcategories?’
Conclusion:KeyStakeholdersaresupportiveandoptimisticaboutriskbasedscreeninginprinciplehowever severalbarriersandenablersexist.Systematicassessmentofthesefactorsareneededinplanningand implementationofachangetotheprogram
CHRONICRENALFAILUREASAPREDICTOROFPOSTOPERATIVEMORBIDITYANDSURVIVALINCOLORECTAL CANCERSURGERY:ARETROSPECTIVEMULTICENTERANALYSIS
MrYajatDua(presenter,1),DrArthavanSurendran(1),DrSimonWilkins(1,2),ProfMohammad Asghari-Jafarabadi(3,4,5),JohnPaulPlazzer(1),MrRaymondYap(1),ProfPaulMcMurrick(1)
1 CabriniMonashUniversityDepartmentofSurgery,CabriniHospital,Malvern,VIC,Australia
2.DepartmentofBiochemistryandMolecularBiology,MonashUniversity,Melbourne,VIC, Australia
3 CabriniResearch,CabriniHospital,Malvern,VIC,Australia
4 SchoolofPublicHealthandPreventiveMedicine,MonashUniversity,Melbourne,VIC,Australia
5.DepartmentofPsychiatry,SchoolofClinicalSciences,MonashUniversity,Clayton,VIC,Australia
Background:Therisingprevalenceofcolorectalcancer(CRC)andchronicrenalfailure(CRF)duetoanaging populationposeschallengesintheperioperativemanagementofCRCsurgerypatients Theimpactofrenal functiononpostoperativeoutcomesremainscontroversial,withlimiteddataavailableontheirassociationwith morbidityandmortality
Methods:Aretrospectiveanalysiswasconductedusingahigh-quality,prospectivelymaintainedcolorectal neoplasiadatabasefrommultiplehospitalsinAustralia 2,286patientswhounderwentCRCsurgerybetween2010 and2023werecategorizedbasedonclinicallydeterminedCRFstatusandpreoperativeeGFRlevels,with comprehensivedataondemographics,comorbidities,surgicaldetails,andbothshort-termandlong-term outcomes MultivariablelogisticandCoxproportionalhazardsregressionanalyseswereusedtoexaminethe associationsbetweenCRF,eGFR,andpostoperativeoutcomes,includingcomplications,30-daymortality,overall survival(OS),andrelapse-freesurvival(RFS)
Results:CRF,presentin135patients(59%),wasindependentlyassociatedwithincreasedriskofpostoperative complications,30-daymortality,andprolongedileus CRFsignificantlyreducedOS(AHR:149,p<0001)andRFS (AHR:151,p<0001),with5-yearOSandRFSratesof589%and574%,respectively,comparedto833%and827%in non-CRFpatients. Incontrast,preoperativeeGFR<60mL/min/1.73m²wassignificantlyassociatedwithmedical complicationsand30-daymortalityinunivariateanalysisbutlostsignificanceinmultivariableanalysis
Conclusion:CRF,definedbypersistentserumcreatinineelevation,isastrongpredictorofincreasedperioperative morbidityandreducedlong-termsurvivalinCRCsurgerypatients Comprehensivepreoperativerenalfunction assessmentisessentialforoptimizingsurgicaloutcomesinthispopulation
DrJackMenzie(Presenter,1),DrAmosLiew (1),DrVanishaFernando(1)DrAnderson Cheong(1),DrLuluXiao(1),DrNicholasKing(1),DrYigengLi(1),DrAshrayRajagopalan (1,3),MsGeraldineOoi(1,2,3)
1.DepartmentofGeneralSurgeryMonashHealth,ClaytonVIC,Australia
2 DepartmentofUpperGastrointestinalandHepatobiliarySurgeryMonashHealth, ClaytonVIC,Australia
3 SchoolforClinicalSciencesatMonashUniversity,ClaytonVIC,Australia
Backgrounds:EvidenceshowsthathighBMIcontributestoincreasedpost-operativecomplicationsin gastrointestinalsurgeriesandsuggeststhatitmaycontributetointraoperativeadverseeventsduetotechnical difficulties.WeaimedtodetermineifahighBMIresultsinincreasedintraoperativeadverseevents(ClassIntra classificationsystem)comparingliverresectionoutcomesinthosewithahighBMIwithnormal/lowBMI patients
Methods:AretrospectiveauditofalltypeliverresectionsperformedunderanadultHepatobiliaryunitat MonashHealthVictoriafromFebruary2018toOctober2023.WecomparedBMIgroupsandtheirimpacton intraoperativeadverseeventsandpost-operativecomplications
Results:203patientswereincludedintheanalyses.AhigherBMIacrossalltypesofliverresectionsdidnotshow anincreaseinpost-operativecomplicationsaccordingtoClavien-Dindoclassification.Therewasagreater lengthofoperationtimeinHighBMIpatients(2335minsBMI<25,2594minsBMI20-25,277minsBMI>30;p=0047) IntraoperativeadverseeventswereincreasedinhigherBMIpatientscomparedtonormal/lowBMIformajorliver resectionssuchasmultiplesegmentresectionsandhemi-hepatectomies(p=0.039).Bloodlossintraoperatively wasincreasedinhighBMIpatients(BMI<25=655ml,BMI25-30=543.3ml,BMI>30=836.6ml;p=0.017)
Conclusion:IncreasedintraoperativeadverseeventsbymeasureofClassIntraclassificationmaybe associatedwithanincreaseinBMIinpatientswhoundergomajorliverresections.Additionally,highBMIshows thatthereisnoincreaseinpost-operativecomplicationsandmaybeaprotectivefactorasoutlinedinother studies,howeverfurtherstudiesareneededtoclarifythisphenomenon
PATIENTANDCLINICIANPRIORITIESINPERIPHERALARTERYDISEASEMANAGEMENTUSINGMULTIPLECRITERIA DECISIONANALYSIS
NimaIranpour(Presenter1),RiteshChimoriya(1,2),SarahAitken(1,2)
1 ConcordRepatriationandGeneralHospital,Sydney,NewSouthWales
2.SpecialtyofSurgery,UniversityofSydney,NewSouthWales
Purpose:Healthcaredecisionsofteninvolvecomplextrade-offsbetweenmultiple,oftenconflicting,objectives MultipleCriteriaDecisionAnalysis(MCDA)offersastructuredandtransparentmethodologythatcanimprove decision-makingqualitybyconsideringabroaderrangeoffactorsbeyondtraditionalcost-effectiveness metricsThisstudyaimedtoassessthefeasibilityandvalueofusingMCDAtoestimatetherelativeimportance ofvariousaspectsofmultidisciplinaryperipheralarterydisease(PAD)managementfromtheperspectivesof bothpatientsandclinicians.
Methodology:ApilotMCDAquestionnairewasdevelopedtoevaluateanrandomisedcontrolledtrialcomparing multidisciplinaryteammanagementtousualcaretoreducecardiovascularrisksinpatientswithPAD Twenty twopatientsandcarersidentifiedoutcomesofimportanceinfocusgroupsandsurveys.Threeclinicians completedaSheffieldElicitationFramework(SHELF)activitytoweightoutcomesofinterestusinganAnalytical HierarchyProcess(AHP) ThefinalMCDAtoolwaspilotedintheconsumergroup,andresultsanalysed accordingtoISPORguidelines,refiningtheMCDAtoolbeforebroaderdeployment
Withdrawn
Results:Consumersprioritisedoutcomessuchas'PainManagement,''AccesstoOtherMedicalTreatment,' 'ImpactonQualityofLife,''SharedDecisionMaking,''EarlyDiagnosis,''AmputationPrevention,'and'Decreased RiskofHeartAttackorStroke'TheMCDAwasseenaspracticalandusefulincapturingdiversepriorities
Conclusion:MCDAshowspromiseasanoveltoolforevaluatingthevalueofamultidisciplinaryapproachto PADmanagement Thepilotstudysuccessfullydemonstratedthepracticalityofthisapproach,andtherefined toolisreadyfordeploymenttoalargergrouptofurthervalidateitseffectiveness
ChenLiu(presenter,1,2),EmmaLudlow(1),KaiShengSaw(1),CeliaKeane(1),Sherry Nisbet(2),SirajRajaratnam(2),JohnWoodfield(3),GregoryO'Grady(1),IanBisset(1)
1 DepartmentofSurgery,UniversityofAuckland,Auckland,NewZealand 2 TeWhatuOraWaitemata,Auckland,NewZealand
3.TeWhatuOraSouthland,Dunedin,NewZealand
Introduction:Thestudyaimedtoassesswhetherpre-operativechymereinfusionusinganovelmedicaldevice (TheInsides®System)reducedpost-operativelengthofstayfollowingloopileostomyreversal
Method:Thiswasamulti-centreRCTincludingpatientswithpreviousloopileostomyformationduringdistal colorectalanastomosis Beforeenrolment,anastomoticleakwasexcluded Patientswererandomisedto standardcare(controlgroup)ordailychymereinfusionusingthedevice(interventiongroup)foraminimumof 2weeksbeforeileostomyreversal.Theprimaryoutcomewasthepost-operativelengthofstay(LOS)following ileostomyreversal
Results:ThetrialwasperformedbetweenJune2020andMarch2023atsixhospitalsacrossNewZealand A totalof50patientswererandomised(26intheinterventiongroupand24inthecontrolgroup).Baseline characteristicsweresimilar Therewasnosignificantdifferenceinthemedianpost-operativeLOSbetween interventionandcontrolgroups:30(IQR2-5)vs40(3-5)days,respectively(p=0347) Intheinterventiongroup, 16patients(62%)didnotachievetwoweeksofchymereinfusionimmediatelypriortoileostomyreversal The mostcommonreasonwasdevicedislodgement(9/16).Interventiongrouppatientshadasignificantlyhigher mediannumberofunplannedoutpatientvisits:15(00-23)vs00(00-00),p<0001 Themostcommonreason forsuchvisitsintheinterventiongroupwasfordevicedislodgement Allothersecondaryoutcomesweresimilar
Conclusion:Chymereinfusionpriortoloopileostomyreversaldidnotreducepost-operativeLOS.Resultswere impactedbylowinterventioncompliancedemonstratingthatfurtherdeviceinnovationisrequiredinthis population
KylieLim(presenter,1,2),ShayanSoroush(2),LiangQu(1),AnthonyDat(1),Matthew Harper(1),ScottDonnellan(1),WeranjaRanasinghe(1,2)
1.MonashHealth,Melbourne,Victoria
2 MonashUniversity,Melbourne,Victoria
Introduction:DelaystoprostatecancercarehasbeenaffectedbytheCOVID19pandemic,addingtowaitlist pressuresandrequiresinnovativeandsustainablestrategies.OurVictorianinstitutionhasintroduced PrecisionPoint™TransperinealAccessSystem(PPTAS)–anoveldevicewhichcanbeperformedasan outpatientprocedureunderlocalanaesthetic(LA) Theaimswere1)toassessthesafetyandtodeterminethe potential2)economicand3)environmentalimpactofPPTAS
Methods:PPTASwasprospectivelyevaluatedundergeneralanaesthesiatoassessprostatecancerdetection andcomplicationsratescomparedtostandardtemplatebiopsyin2022 Basedoncurrentwaitlists,theatre expendituresanddisposablewastagewasmodelled
Results:34and106patientsunderwentPPTASandstandardtemplatebiopsyrespectively,withsimilar clinicallysignificantcancerdetectionrates(50%vs 538%) NocomplicationswererecordedinthePPTAS cohort CostsanalysiswhentransitionedtoLApredictsavingsof$718percase,totalling$236,900perannum Theatretimesavingsofapproximately17minutespercaseallowsadditionoftwobiopsiespersession. Furthermore,relocationtooutpatientsenablesavailabilityofanaestheticservicesandmaintheatreusefor otherelectiveoremergencyoperations Disposablewastegeneratedwoulddecreaseby818gramsper biopsycase,preventing270kgoflandfillwasteperannum
Conclusion:Comparablecancerdetectionratesweredemonstrated,assuringthesafetyofPPTAS The predictedanalysissuggeststhisdevicewillhavepositiveeffectsofreducingouroverburdenedsurgicaland clinicwaitlist Therearealsoanticipatedfinancialbenefitsandimprovementstosustainabilityimpactswith greateruseofexistingresources.
JosipaPetric(presenter,1),MuktarAhmed(1),MaziarNavidi(2),DavidPilcher(3), ShaileshBihari(1,4),NormaBBulamu(1),TimBright(1,2),DavidIWatson(1,2)
1.FlindersHealthandMedicalResearchInstituteandCollegeofMedicineandPublic Health,FlindersUniversity,SouthAustralia,Australia
2 DepartmentofSurgery,FlindersMedicalCentre,SouthAustralia,Australia
3 DepartmentofIntensiveCare,AlfredHealth,Victoria,Australia
4 IntensiveandCriticalCareUnit,FlindersMedicalCentre,SouthAustralia,Australia
Introduction:Arelationshipbetweenhospitalvolumeandmortalityfollowingoesophagectomyforcancerhas beenreportedacrossEuropeandUSAandledtocentralisationofsurgeryinsomecountries However,itis unclearifthisshouldalsooccurincountrieswithlowpopulationdensitysuchasANZ Ouraimwasto determinetherelationshipbetweenhospitalvolumeandmortalityoutcomefollowingoesophagectomyfor cancerinAustraliaandNewZealand(ANZ).
Methods:AsthestandardofcarefollowingoesophagectomyinANZisadmissiontoanintensivecareunit (ICU),theANZIntensiveCareSocietyAdultPatientDatabasewasusedtoidentifypatientsundergoing oesophagectomyfrom2005-22.Mortalityvshospitalvolumeascontinuousvariableswasinvestigated. Mortalitywasalsodeterminedforhospitalswithannualcaseloadsdefinedashigh(18+),medium-high(12-17), medium-low(6-11)andlow(1–5).
Results:6234patientsunderwentoesophagectomyin161hospitals.Overallin-hospitalmortalitywas3.78%, decliningto073%inhighvolumehospitals Twenty-fivepercentofprocedureswereperformedinlow-volume hospitals(n=1558),and199%inhigh-volumehospitals(n=1239) Highvolumehospitalsalsohadshorter lengthofstayinhospital(p<0001)andinICU(p<0001) Theminimumannualhospitalvolumeforthelowest mortalitywas16-21casesperyear Ifallhospitalsperformedatleast16casesperyear,onedeathforevery 200oesophagectomiescouldbeprevented
Conclusions:Apositivevolume-outcomerelationshipforANZwasdemonstratedformortalityfollowing oesophagectomy,withhospitalsperforming16ormoresurgeriesperyeardeliveringlowestmortality
DEFINING‘FAILURETORESCUE’AFTERPOSTOPERATIVECOMPLICATIONS:ASYSTEMATICREVIEWAND POPULATION-BASEDSTUDY
CameronWells(presenter,1,2),WilliamXu(1,3),ChrisVarghese(1,4),SameerBhat(1,5), GregO’Grady(1),ChrisHarmston(1,6),IanPBissett(1,3)
1 UniversityofAuckland,Auckland,NewZealand
2 TeWhatuOraTeMatauaMaui,Hastings,NewZealand
3.TeWhatuOraTeTokaTumai,Auckland,NewZealand
4 TeWhatuOraWaitemata,Auckland,NewZealand
5 TeWhatuOraMidCentral,PalmerstonNorth,NewZealand
6 TeWhatuOraTeTaiTokerau,Whangarei,NewZealand
Background:Failuretorescue(FTR)isthedeathrateamongstpatientswithpostoperativecomplications,andis asurgicalqualityindicator.However,FTRhasbeendefinedinconsistently,withpotentialimpactsonreported ratesandhospitalrankings
Methods:DatabasesweresystematicallysearchedforstudiesreportingpostoperativeFTRrates Weexamined thecomplicationsincludedintheFTRdenominator,thepercentageofalldeathscapturedbyFTR,andthe timingofmeasurementforbothcomplicationsandmortality FiveFTRdefinitionsadaptedfromtheliterature wereexaminedinaNewZealandcohortofgastrointestinalandhepatobiliarycancerresectionsfrom20052020 Hospitalrankingswerecomparedusingrisk-adjustedFTRrates
Results:Intotal,359studiesincluding212,048,069patientswerereviewed Themediannumberofcomplications includedintheFTRdenominatorwas10(IQR8-15),but131differentcomplicationswerereported Studieswhich includedmorecomplicationsintheFTRdenominatortendedtoreportlowerFTRrates Complications(52%)and mortality(40%)weremostcommonlymeasuredin-hospital,followedby30-daysaftersurgery. Forthe population-basedstudy,31,199patientswereincludedTheempiric90-dayFTRratevarieddependingonthe definitionused,rangingfrom104-187% Hospitalrankingswereaffectedbytheboththedefinitionandtimingof outcomemeasurement
Conclusion:FTRisanimportantconceptinsurgicaloutcomesresearch,althoughitsdefinitionishighlyvariable andpoorlyreportedintheliterature ThecomplicationsintheFTRdefinitionandthetimingofoutcome measurementmayimpactresults ThishasimportantramificationsforFTRasaqualityindicatorwhen comparinginstitutionalperformance.
DrMathewAmprayil(presenter,1),TanyaIrvine(1),A/ProfSarahThompson(1),DrTim Bright(1,2),ProfDavidWatson(1,2)
1 FlindersUniversity,Adelaide,SouthAustralia
2 DivisionofSurgery,FlindersMedicalCentre,BedfordPark,SouthAustralia
Background: Obesityisasignificantriskfactorfordevelopmentoflargehiatushernias(LHH).Patientsareoften symptomaticandexperiencepoorqualityoflife Laparoscopicrepairoffersexcellentclinicaloutcomes However,surgeonsmaybereluctanttoofferoperativerepairintheobesepopulationduetoconcernsofhernia recurrenceandincreasedsurgicalmorbidityandmortality Thisstudydeterminedtheperioperativeriskand short-termclinicaloutcomesfollowingLHHsurgeryintheobesepopulation.
Methods:Datawasextractedfromaprospectivelymaintaineddatabase Patientswhounderwentsurgical repairofLHH(definedas>50%intrathoracicstomach)between2000and2023wereincludedandcatergorised into3groups;Normal(BMI<30),Obese(30–34),MorbidlyObese(>35).
Results:920patientsunderwentelectiverepairofLHH(BMI<30:524[570%];BMI30–34:276[30%];BMI>35:120 [130%])wereincluded Obesepatientswereyounger(691vs657vs64years,p<0001) Lengthofstay(28vs 2.5vs2.6days,p=0.06),majorcomplicationsrates(4.1vs2.6vs1.7%,p=0.301),returntotheatre(2.9vs1.1vs 17%,p=0241),30-day(02vs04vs0%,p=0761)and90-daymortality(04vs04vs0%,p=0797)didnot differ Therewasasignificantandsimilarimprovementinsymptomsandoverallsatisfaction
Conclusion:LaparoscopicrepairofLHHintheobeseisassociatedwithlowperioperativeriskandsignificant improvementinsymptomsandsatisfaction Surgeryshouldnotbewithheldfromthesegroups
NON-TECHNICALERRORSASSOCIATEDWITHADVERSEEVENTSINTHEAUSTRALIANSURGICALPOPULATION:AN EIGHT-YEARRETROSPECTIVEANALYSIS
JesseEy(presenter,1),VictoriaKollias(1),OctaviaLee(1),KellyHou(1),Matheesha Herath(1),EllieTreloar(1),MartinBruening(1),AdamWells(2),GuyMaddern(1)
1 DepartmentofSurgery,TheUniversityofAdelaide,TheQueenElizabethHospital, Woodville,SouthAustralia
2 DepartmentofNeurosurgery,TheRoyalAdelaideHospital,Adelaide,SouthAustralia
Introduction:Manyadverseeventsinsurgeryarecausedbyfailingsofnon-technicalskills(NTS) Theincidence andcharacteristicsofnon-technicalerrorsinAustraliaispoorlyunderstood,therefore,evidencetoguideNTS improvementactivitiesislacking.Thisstudyaimedtoinvestigatetheincidence,andcharacteristicsofnontechnicalerrorsassociatedwithadverseevents,leadingtomortalityinAustralia
Methods:AllsurgicalmortalitycasesreportedtotheAustralianandNewZealandAuditofSurgicalMortality (ANZASM)between2012-2019,withanadverseeventorareaforconcernwereincluded.Caseswere retrospectivelyassessedusinganoveltool,developedandvalidatedbythestudyauthors Primaryoutcomes includedincidenceofnon-technicalerrorsoverallandbyNTS-domaintype(Communication/Teamwork, DecisionMaking,SituationalAwareness,Leadership) Asecondaryoutcomewaschangeinnon-technicalerrors overtime.Caseswereassessedbytwoindependentassessorswithdisagreementsresolvedbyathird.
Results:Of3695casesassessed,637%hadnon-technicalerrorsassociatedwithpatientmortality Ofthese, 5841%hadDecision-Makingerrors,5642%hadSituationalAwarenesserrors,1517%had Communication/Teamworkerrors,and5.44%hadLeadershiperrors.Incidenceofnon-technicalerrors decreasedsignificantlybetween2012-2019(meandifference=-189,95%CI:-289,-090,P=00002) Statistically significantdecreasesbetween2012-2019weredemonstratedforCommunication/Teamworkerrors(mean difference=-002,95%CI:-003,-000,P=00092)andLeadershiperrors(meandifference=-055, 95%CI:-1.06,-0.04,P=0.0358).NosignificantchangesinDecisionMakingorSituationalAwarenesserrorswere demonstrated
Conclusion:Theincidenceofnon-technicalerrorsassociatedwithsurgicalmortalityinAustraliaishigh Future NTSimprovementeffortsneedtobetargetedtowardsDecisionMakingandSituationalAwareness.
EllieTreloar,MatheeshaHerath,MerylAltree,SamPotter,DavidWalsh,LaurenKennedy, MatthewPenhall,JesseEy,SuzanneEdwards,MartinBruening,GuyMaddern
1 UniversityofAdelaide,Adelaide,SouthAustralia
2 Women’sandChildren’sHospital,Adelaide,SouthAustralia
3.SchoolofMedicine,UniversityofSydney,Sydney,NewSouthWales
Introduction: Ward-roundqualitydirectlyimpactspatientoutcomesandpoorconductisassociatedwith increasedratesofpreventableadverseevents.Despitethis,thereisminimalliteratureinformingbestpractice inthewardround Theaviationindustryhasbeensuccessfulinmitigatinghumanerrorusinga‘SterileCockpit’ toreduceinterruptionsandnon-essentialactivities Theaimofthisstudywastoimprovepatientoutcomes, satisfaction,anddocumentationofcareusinga‘SterileCockpit’interventioninthewardround
Methodology: Thiswasapre-postinterventionstudywherebysurgicalwardroundswereaudio-visually recorded The‘SterileCockpit’isaprotectedvirtualzoneensuringnointerruptionsandparallelconversations occur Itinvolvesallocatingteamroles,thescriberepeatingtheplan,andclarificationofdocumentation The primaryoutcomeswereaccuracyofdocumentation,patientsatisfaction,interruptionsandtimeatbedside.
Results:Atotalof141wardroundencounterswererecorded,taking232s(pre)and271s(post) Thepatient satisfactionsurveyhadaresponserateof957% The‘SterileCockpit’interventionimprovednursepresence (45%-69%),improvedtheverificationofpatient’splan(1%-91%)andreducedparallelconversation(66%-27%). Additionaldataanalysisiscurrentlybeingconductedbyanexternalstatistician.
Conclusions:The‘SterileCockpit’givesstaffamomentto“breathe”,slowdown,reflect,doublecheckpatients plan,andgivesjuniorstaffpermissiontospeakup.Byaddressingthe‘hurry-upsyndrome’(causeof80%of clinicalincidents)withastructuralchangethatdoesnotsignificantlyincreasethetimetaken,therewillbe lesspreventableerrorandbetterpatientoutcomes
SamwelMakanyengo(presenter,1,2,3),EmilyC Hoedt(2,3),BridieGoggins(2,3), StephenSmith(1,4),PeterPockney(3),SimonKeely(2,3)
1 DepartmentofSurgery,JohnHunterHospital,Newcastle,Australia
2 SchoolofBiomedicalSciences&Pharmacy,CollegeofHealth,Medicineand Wellbeing,UniversityofNewcastle,Newcastle,Australia
3.HunterMedicalResearchInstitute,ImmuneHealthProgram,NewLambtonHeights, NSW,Australia
4 SchoolofMedicineandPublicHealth,CollegeofHealth,MedicineandWellbeing, UniversityofNewcastle,Newcastle,Australia
Introduction:Theevidencefortheimpactoforalantibioticsonanastomotichealingisweakdueto considerableheterogeneityinantibioticregimensandroutesofadministration.Wesoughttoinvestigatethe impactthatantibioticusehasonthegutmicrobiomeinrelationtoanastomoticinamousemodelofcolonic resectionandanastomosis(R&A)
Methods:24miceunderwentR&Aeitherwithneomycin,100mg/kgdilutedto1mg/100ul,byoralgavage1day prior(Abx,n=12)orwithequivalentvolumesterilewater,given1dayprior(H2O,n=12) Endpointsweredoneat day3 Microbiomeanalysisofmucosalsamplesby16SrRNAsequencing Lineardiscriminantanalysis(LDA) effectsize(LEfSe)wasusedtoperformhighdimensionalclasscomparisons
Results:3miceintheH2OgroupdevelopedleakscomparedtooneintheAbxgroup Asignificantdifferencein alphadiversitywasobservedinthepost-operativesamplesatday3withincreaseddiversityintheH2Ogroup (Chao1p=00049) Themostabundantbacteriaintheantibioticgroupfromintra-operativesampleswas Bacteroides.ThisshiftedtoBlautia,Muribaculum,Robinsoniella,Anaerotruncus,Enterococcus,andTuricibacter atday3 ThemostabundantbacteriaintheH2Ogroupintra-operativelywereDubosiellaandCoriobacteriales Atday3thisshiftedtomembersofthefamilyLachnospiraceae
Conclusions:Ourfindingssuggestthatpre-operativeantibioticsalterthemicrobiomeinawaythatmitigates proliferationofvirulentspeciesthataffectanastomotichealing BacteriafromthefamilyLachnospiraceaewere demonstratedinahumanstudytobeabundantinpatientswhodevelopanastomoticleaks
AnshiniJain(presenter,1,2),MichaelPFlood(1,2),GlenGuerra(1,2),HelenMohan,(1,2), SatishWarrier(1,2)JosephCHKong(1,2)MichaelMichael(1,3),RobertRamsay(1,2), AlexanderGHeriot(1,2)
1.DepartmentofSurgicalOncology,PeterMacCallumCancerCentre
2 SirPeterMacCallumDepartmentofOncology,UniversityofMelbourne
3.DepartmentofMedicalOncology,PeterMacCallumCancerCentre
Introduction:ColorectalPeritonealMetastases(CPM)developin13%ofCRCpatients,however,asubsetof patientscanbeofferedCytoreductiveSurgery(CRS)withHyperthermicintraperitonealchemotherapy(HIPEC), withfavourablemediansurvivalof40months,comparedto16monthsonsystemic-therapyalone PRODIGE-7 hasquestionedtheefficacyofHIPEC,demonstratingnosurvivalbenefitofCRS+OX-HIPECwhencomparedto CRSalone,creatingclinicalequipoiseinthemanagementofCPM
Method:PredictORGisanoveltranslationalstudythatidentifiesthebestHIPECdrugforindividualpatients basedonin-vitrosensitivitydemonstratedbypatient-derivedorganoids Intra-operativeCPM-biopsieswere collectedfromthreeinterstateperitonectomycentres(RPAH,TQEHandPMCC)andtransportedtoPMCCfor tissueprocessing,organoidcultivation,anddrugscreening Patients’organoidswereincubatedfor4days andexposedtoMitomycin-C/OX/IRIasmonotherapy.Amachinelearningalgorithmwasdevelopedto identifyorganoidviabilityuniquetoeachpatient’sorganoidphenotype
Results:Acrossthethreesites,27patientswererecruitedandanoverallorganoidsuccessratewas77% (14/18).Themeantimetosuccessfulorganoidcultivationwas17.8(8-34)daysandtimedrugassayresult 248(15-41)days Successratesdidnotdifferbetweenlocalandinterstatesamples(PMCC(6/8)75%; RPAH(6/8)75%;TQEH(2/2)100%)
Conclusion:Thisnoveltranslationalstudydemonstratesthatmulticentretissueretrieval,organoidcultivation anddrugscreeningisfeasiblewithinthe4-weekperiodthatpatientsareoptimisedfortheirdefinitiveCRSand HIPEC ThereisconsensusfromallAustralianperitonectomycentrestoproceedtoafundednationwide translationalclinicaltrialinvestigatingtheimprovementinoncologicaloutcomesutilisingthistranslational, personalisedmedicineapproach
NicoleLYTham(presenter,1,6),FionaReid(1,5),RosemaryCarroll(1),StephenRSmith (1,2,3,4)
1 ColorectalUnit,DepartmentofSurgery,JohnHunterHospital,Newcastle,NewSouth Wales,Australia
2 HunterMedicalResearchInstitute,Newcastle,NewSouthWales,Australia
3.SchoolofMedicineandPublicHealth,UniversityofNewcastle,NewSouthWales,Australia
4 DepartmentofSurgery,CalvaryMaterHospital,Newcastle,NewSouthWales,Australia
5 ColorectalUnit,DepartmentofSurgery,FootscrayHospital,Footscray,Victoria,Australia
6.ColorectalUnit,DepartmentofSurgery,StVincent'sHospital,Fitzroy,Victoria,Australia
Introduction:Lignocaineisusedinopioid-sparingmultimodalanalgesia,withpotentialoncologicbenefitvia immunomodulation.However,itsoptimumdosingandadministrationrouteisstilluncertain;whiletoxicityisrare itispotentiallysevere Thisstudyaimstoassessplasmalignocainelevelsinpatientswhohadlaparoscopic colorectalcancer(CRC)resectionsurgery,duringintra-operativeintravenous(IV)infusionandpost-operative regionalabdominalwallblocks
Methods:Thiswasaprospectivecohortstudy,usingasubsetofdatafromtheLignocaineInfusioninColorectal NeoplasiaPatientImmuneCells(LICPIC)study;adouble-blind,randomisedcontrolledtrialinvestigatingeffect oflignocaineonimmunefunction AdultpatientsundergoinglaparoscopicCRCsurgerywereincluded(20182022).PatientsreceivedIVinfusionofstudydrug(lignocainev.placebo)intra-operatively,followedbyregional infusionviatransversusabdominisplane(TAP)catheterfor3dayspost-operatively Participantshadblood samplescollectedat6timepointstomeasureplasmalignocainelevels
Results:Atotalof43patients(22lignocaine,21placebo)werestudied.Plasmalignocaineconcentrationsinthe lignocainegroupwerehigherwhenreceivingregionalinfusioncomparedtowhenreceivingIVlignocaine MedianplasmalignocainelevelswhilereceivinglignocaineviaTAPcatheterswereabove5µgml-1,whereas medianplasmalignocainelevelswhilereceivinglignocaineIVwerebelow5µgml-1 Notoxicitysideeffects wererecorded.
Conclusion:Thisstudysuggestsregionalinfusionoflignocainemayleadtosystemicabsorptionwithplasma lignocainelevelsreachingthepotentialforneurotoxicsymptoms(above5µgml-1),doseadjustmentorcloser monitoringmayberequired.
LavinaRao(1),EricYang(presenter,1,2), SavannahDissanayake(1),RobertoCuomo (3),IshithSeth(1,2),WarrenM Rozen(1,2)
1 DepartmentofMedicineandSurgery,MonashUniversity,Melbourne, Victoria,3168,Australia
2 DepartmentofPlasticandReconstructiveSurgery,PeninsulaHealth, Melbourne,Victoria,3199,Australia
3 DepartmentofMedicine,PlasticSurgeryandNeuroscience,University ofSiena,Siena,53100,Italy
Theintroductionofgenerativeartificialintelligence(AI)has revolutionisedhealthcareandeducation TheseAIsystems,trainedon vastdatasetsusingadvancedmachinelearning(ML)techniquesand largelanguagemodels(LLMs),cangeneratetext,images,andvideos, offeringnewavenuesforenhancingsurgicaleducation Theirabilityto produceinteractivelearningresources,proceduralguidance,and feedbackpost-virtualsimulationsmakesthemvaluableineducating surgicaltrainees However,technicalchallengessuchasdataquality issues,inaccuracies,anduncertaintiesaroundmodelinterpretability remainbarrierstowidespreadadoption Thisreviewexploresthe integrationofgenerativeAIintosurgicaltraining,assessingits potentialtoenhancelearningandteachingmethodologies While generativeAIhasdemonstratedpromiseforimprovingsurgical education,itsintegrationmustbeapproachedcautiously,ensuringAI inputisbalancedwithtraditionalsupervisionandmentorshipfrom experiencedsurgeons GiventhatgenerativeAImodelsarenotyet suitableasstandalonetools,ablendedlearningapproachthat integratesAIcapabilitieswithconventionaleducationalstrategies shouldbeadopted Thereviewalsoaddresseslimitationsand challenges,emphasisingtheneedformorerobustresearchon differentAImodelsandtheirapplicationsacrossvarioussurgical subspecialties Thelackofstandardisedframeworksandtoolsto assessthequalityofAIoutputsinsurgicaleducationnecessitates rigorousoversighttoensureaccuracyandreliabilityintraining settings ByevaluatingthecurrentstateofgenerativeAIinsurgical education,thisnarrativereviewhighlightsthepotentialforfuture innovationandresearch,encouragingongoingexplorationofAIin enhancingsurgicaleducationandtraining
THEIMPACTOFFORMALTEACHINGINRESEARCHMETHODS AFTERPRIMARYMEDICALQUALIFICATIONSONSURGICAL RESEARCH:ANANALYSISOFSHORT-TERMRESEARCHOUTPUT
MeetPatel(presenter,1),DavidSun(1),Dominic Edwards(1),DhavalSolanki(1),JeetUpadhyay (1),ArjunRaju(1),MayaStarr(1),Thomas Maouris(1),AlexanderLombardo(1),Daphne Wang(1),KaramveerNagi(1),NazimBhimani (1),AnthonyGlover(1)
1 FacultyofMedicineandHealth,TheUniversityofSydney, CamperdownNSW2050,Australia
Introduction:Surgicalresearchhasbeenhistoricallycritiquedfor high-volumeandlow-clinicalapplicabilityyetremainscrucialfor modernsurgeons TheUniversityofSydneyMasterofSurgery(MS) programoffersformalteachingonresearchmethods,withan optiontocompleteadissertation Wesoughttoevaluatetheimpact ofresearchmethodsubjects(RMS)andsupervisorcharacteristics ondissertationqualityandshort-termresearchoutput
Methods:StudentsenrolledinthedissertationfortheUSYDMS programbetween2010-2020wereidentifiedandgradesforthe dissertationandRMSwereextracted PubMedandWebofScience wereusedtodetermineifthedissertationwaspublishedand identifyotherpublications Statisticalanalysisinvolvedlogistic regressionandnegativebinomialregression
Results:Ofthe379students,53%publishedtheirdissertationata medianof18-monthspost-enrolmentandmedianjournalimpactfactor219(range0-50) Paperspublishedhadameancitationof 3.90at2-years.At2-years,studentsaveraged2.1additional
publications(range0-30) HighergradesinRMSimprovedgradesinthe dissertationbutwerenotassociatedwithpublishingdissertation Students awardedwithdistinction/highdistinctionorthosewithpriorpublicationshad greatlyincreasedoddsofpublishingtheirdissertation(OR231,95%CI=145-367, p-value<0001;OR282,95%CI=182-438,p-value<0001respectively) Despite femalesupervisorsbeingassociatedwithhigherdissertationmark(IRR=296, 95%CI=050-543,p-value=0019),thosestudentswerelesslikelytopublishtheir dissertation(OR027,95%CI=012-061,p-value=0002)
Conclusion:Thehigh-qualitysurgicalresearchoutputfollowingtheMS dissertationissecondarytostructuredfacultyguidancewithinprojectsand structuredteachinginfoundationalresearchskills
THEUTILITYOFIVCDIAMETERFORTHEASSESSMENTOFHYPOVOLAEMICSHOCK INADULTTRAUMAPATIENTS
NandiniKarthikeyan(presenter,1,5),YenKim(1,2), ChristopherGroombridge(1,3,4),MarkFitzgerald(1,2,3)
1 NationalTraumaResearchInstitute,AlfredHealth, Melbourne,Victoria,Australia
2 DepartmentofSurgery,CentralClinicalSchool,Monash University,Melbourne,Victoria,Australia
3 TraumaService,AlfredHealth,Melbourne,Victoria,Australia
4 EmergencyandTraumaCentre,AlfredHealth,Melbourne,Victoria,Australia
5 SchoolofMedicine,MonashUniversity,Melbourne,Victoria,Australia
Background:Traumaticinjuryisaleadingcauseofdeathgloballyamongthose agedbetween10and29years Hypovolaemicshockrepresents25%of preventabledeathsfollowinginjury Currentsystemsusedtoclassify hypovolaemicshockarenotsuitableforahigh-intensitytraumaenvironment, orclinicallyaccurateforassessingthedegreeofshock Inferiorvenacava(IVC) diameterisademonstratedparameterofhypovolaemicshockinintensivecare settings However,itsfeasibilityasadiagnosticparameterhasnotbeen assessedinatraumareceptionsetting
Methods:Thiswasaprospectivecross-sectionalstudyofadulttraumapatients undergoingaFASTscan Asubxiphoidviewwasusedtocapturealong-axis imageoftheIVC IVCdiameterwasmeasured2cmcaudaltoitsconfluencewith thehepaticveins Theminimumdiameterduringinspirationandmaximum diameterduringexpirationwererecordedtocalculatethecollapsibilityindex Thetimetakentorecordthemeasurementswasalsorecorded
Results:Twenty-threeparticipantswererecruitedintotheshockedandnonshockedgroups ThemedianIVCdiametersduringinspirationandexpiration weresmallerintheshockedgroup(78mmand100mm)thaninthenonshockedgroup(137mmand172mm) IVCmeasurementsweresuccessfully obtainedinonly56%ofparticipants,demonstratingthattherewerebarriersto obtainingthesemeasurements Thesebarriersincludedoperatordependence fromvariationinclinicians’ultrasoundexperience,thepresenceofbowelgas andobesebodyhabitus
Conclusion:IVCmeasurementscouldnotbereliablyobtained,likelyprecluding thisassessmentfrombeingfeasibleinatraumareceptionenvironment
TRENDSANDPREDICTORSOFTOTALNEOADJUVANTTHERAPYINRECTAL CANCER:ABI-NATIONALREGISTRYSTUDYACROSSAUSTRALIAANDNEW ZEALAND
IshraqMurshed1,2(presenter),Sergei Bedrikovetski(1,2),ZacharyBunjo(1),HiddeM Kroon(1,2),MichelleThomas(1,2),Tarik Sammour(1,2)
1 DisciplineofSurgery,AdelaideMedicalSchool,FacultyofHealthandMedical Sciences,UniversityofAdelaide,Adelaide,SouthAustralia,Australia 2 ColorectalUnit,DepartmentofSurgery,RoyalAdelaideHospital,Adelaide, SouthAustralia,Australia,5000
Introduction:TotalNeoadjuvantTherapy(TNT),combiningneoadjuvant chemoradiotherapywithupfrontchemotherapy,hasimprovedoutcomesin locallyadvancedrectalcancer(LARC)andisincreasinglyincludedin internationalguidelines However,itsadoptioninAustraliaandNewZealand (ANZ)isnotwellunderstood
Methods:DatafromtheBowelCancerOutcomeRegistry(BCOR)forpatients diagnosedwithrectalcancerbetween2018and2024wereanalysed PatientswithLARCwhoreceivedneoadjuvanttherapy(NAT)wereclassified intostandardneoadjuvanttherapy(SNT)orTNT Theprimaryoutcomewas TNTutilisation,andmultivariatelogisticregressionidentifiedpredictive factors.
Results:Among4,657LARCpatients,706(218%)receivedTNT,and 2,528(782%)receivedSNT TNTuseincreasedfrom11%in2018to41%in 2023,particularlyinmid-lowandT3/4node-positiveLARC Factors associatedwithdecreasedTNTusewereolderage(OR0978,95%CI 0.970–0.985,p<0.001),absenceofmultidisciplinaryteam(MDT) discussion(OR0113,95%CI0027–0472,p=0003),andprivatehealth insurance(OR0619,95%CI0441–0869,p=0006) IncreasedTNTuse wasassociatedwithclinicalT4tumours(OR2020,95%CI1245–3280, p=0004),node-positivestatus(OR1481,95%CI1118–1964,p=0006) anddiagnosisbetween2019and2023(p<005forall)
Conclusion:TNTisincreasinglyusedinANZ,especiallyforT4and node-positivetumours Conversely,olderage,absenceofMDT discussion,andprivatehealthinsurancewerelinkedtolowerratesof TNTuse Thisstudyprovidesbaselinedataonrectalcancer managementinANZ,guidingfuturebenchmarkingefforts
TERTIARYCENTREEXPERIENCEOFHIGH-VOLUME,LOW-RISKPROSTATE CANCER:ACTIVESURVEILLANCEVERSUSRADICALTHERAPY
DarrenLam(presenter1),ShaotingZhang(1,2), KylieYen-YiLim(1),HarrisonLiu(1),JefferyJiang(1), EldoPaul(2),SteuartRorke(3),BeenaKumar(3), SeanLim(1),MatthewHarper(1),KevinChu(1), JamesHuang(1),NeiroshanRajarubendra(1),Paul Manohar(1),TrungPham(1),GideonBlecher(1), ScottDonnellan(1),WeranjaRanasinghe(1).
ology,MonashHealth,Melbourne,Australia ne,NursingandHealthscience,MonashUniversity, Melbourne,Australia
3 DepartmentofAnatomicalPathology,MonashHealth,Melbourne, Australia
Introduction:ActiveSurveillance(AS)isthestandardapproachforISUP gradegroup(GG1)prostatecancer(PCa) Weaimtoexaminethe oncologicaloutcomesofASversusradicaltreatmentforhigh-volume ISUP1PCa
Methods:Mendiagnosedwithhigh-volume(fiveormorepositive biopsycores)ISUPGG1PCaatatertiaryinstitutionreviewed retrospectively Allpatientswereengagedinashareddecision-making modelandcounselledonASandradicalprostatectomy(RP)atthe discretionofthereviewingclinician Coxregressionwasusedtoassess theassociationbetweenstudycohorts
Results:Outof84menwithhigh-volumeISUPGG1disease,56(667%)patients underwentAS,while17(202%)optedforRP Among16(286%)patientswho wereinitiallyplacedonASandlaterunderwentRP,twelvepatients(750%)had upgradedpathologytoclinicallysignificantPCaatre-biopsy,withamedian timeof74months Incontrast,amongsevenpatientswhounderwentupfrontRP, six(857%)showedupgradedpathologytoclinicallysignificantPCa,ofthose, five(833%)haddetectableMRIlesions(PI-RADS4/5) Therewasnostatistical differencewasobservedin≥pT3disease(0vs6intheASprogram,p=006),with onepatienthavingapositivesurgicalmargin
Conclusion:WhileourresultsdemonstratethatASinhigh-volumeISUPGG1is safe;over50%ofpatientsarelikelytohavediseaseupgradation Additionally, patientsundergoingASwithhighvolumeISUPGG1PCawithvisiblelesionson MRIscansshouldbecarefullymonitored,astheyexhibitedahigherlikelihoodof diseaseupstaging
PosterPresentations
Friday15November2024
Session2
KINEMATICANDKINETICDIFFERENCESINPAEDIATRICAND
AngelAulakh(presenter,1),KateDent(2),DrMartinaBarzan(1),DrSheannaMaine(1,2,3) 1 GriffithUniversity
Introduction:Recurrentpatellofemoraljoint(PFJ)dislocationcanresultinpain andreducedjointfunction Thisresearchaimstoanalysesubject-specificlimb anatomyandgaitcycletodeterminekeyvariablesinfluencingPFJdislocation asthereislimitedinsightintotheinterplayofpathoanatomyandgaitina dislocationevent,particularlyinthepaediatricandadolescentpopulation
Methods:MRIimagingandgaitanalysiswereobtainedfor24patientswitha historyofmultiplepatellardislocationsand25age-matchedcontrols Bony anatomywassegmented(Mimics250)andskeletalmodelsweregenerated (STAPLEMATLABtoolbox) Modelswerecombinedwithgaitcycle(OpenSim)to obtainkinematicdata Coronal,sagittalandaxialbiomechanicswereanalysed toidentifydifferencesbetweencontrolanddislocatorgroups
Results:Preliminarysegmentationandanalysisoftwocontrolsandtwo dislocatorshaveshownqualitativedifferencesinjointkinetics Comparedtothe controls,onedislocatorshowedreducedTFJflexionintheearlystagesofthe gaitcycleaswellasreducedhiprotationwhiletheseconddislocatorshowed reducedhipflexion Theresultsshowgreaterheterogeneitybetweenthe dislocatorsandgreatervariabilityingaittrials Theseresultswillcontinuetobe expandedandvalidated
Conclusion:Preliminaryanalysisshowsdifferencesinthegaitcycleof dislocatorscomparedtocontrols Innovatively,theuseofsubject-specific modellingallowsforindividualisedanalysisofpathoanatomyandprovides valuablestepstowardsinformingcliniciansonsubject-specificreparativeor correctivesurgicaldecisions
L JUNIORDOCTORS’PERSPECTIVEONCONVERSATIONS
NGRESUSCITATIONSTATUS,DEATHANDDYING TachelleTing(presenter,1),Dr.AndrewVanlint(2), Dr MatthewArnold(3)
1 FlindersUniversity,Adelaide,SouthAustralia
2 NALHN
3 UniversityofAdelaide thAustralianpublichealthsystem,juniordoctorsfrom p nwards(PGY2+)areexpectedtohaveroutineand event-drivenconversationswithpatientsandtheirfamiliesregarding resuscitationplans,deathanddying Anecdotally,manyjuniordoctorsfeel under-preparedtoundertaketheseconversationsinastructuredand informedmanner Thereisalsolittleformalisedtrainingfordoctorsin performingtheseduties Thisisaqualitative,interview-basedstudyseekingto elicitjuniordoctors’experienceswithsuchdiscussionsandperspectiveson currentandpotentialtrainingresourceswhichwouldbuildtheirskillsinthis importantandsensitivearea
Method:WerecruitedsevenPGY1-3doctorsandconductedsemi-structured1:1 virtualinterviewstobetterunderstandwhatformalorinformaltrainingis currentlybeingprovided,howtheyfeelaboutconductingresuscitationplan discussionswithpatients,andtoidentifywhatadditionaltrainingwouldbe helpful
Results:Juniordoctorsuniversallyhadminimalornoformaltrainingin conductingresuscitationplandiscussionsandreliedmostlyonobserving seniorswhentheywerestudentsorinterns Intervieweesfeltcomfortable conductingsimplediscussions,especiallywhenpatientsalreadyhad advancedcareplanswithevidencebasedlimitationsagreedon Interviewees founditchallengingtoconductdiscussionswherethepatientorfamily disagreedwiththedoctor’srecommendationsortherewassignificant complexityanddesiredmoretraininginordertobettermanagethese situations
Conclusion:Therearemanyexcellentresourcesfortraineestoacquireskillsin conductingdeathanddying-typediscussionsbutminimalonhowtoconduct advancedcareplanningandresuscitationplans
SYSTEMATICREVIEWANDMETA-ANALYSIS
RathinGosavi(presenter1,2)ClementeChia(1,2)Michael Michael(3)AlexanderG Heriot(1,4,5)SatishK Warrier(1,4, 5)JosephC Kong(1,4,5)
1.DivisionofMedicalOncology,PeterMacCallumCancer Centre,Melbourne,Victoria,Australia
2 DivisionofCancerResearch,PeterMacCallumCancerCentre,Melbourne, Victoria
3 ColorectalSurgeryDepartment,AlfredHealth,Melbourne,Victoria, 4 DivisionofCancerSurgery,PeterMacCallumCancerCentre,Melbourne, Victoria,Australia
5 SirPeterMacCallumDepartmentofOncology,UniversityofMelbourne, Parkville,Victoria,Australia
Background:Thereisincreasingevidencetosupporttheuseof neoadjuvantchemotherapy(NAC)inlocallyadvancedcoloncancer (LACC) However,itssafety,efficacyandsideeffectprofileisyettobe completelyelucidated
Methods:PubMed,EMBASEandMEDLINEweresearchedforasystematic reviewoftheliteraturefrom2000to2020 Eighteligiblestudieswere included,withatotalof1213patients,752(62%)ofwhomreceivedNAC Twowererandomisedcontrolledtrialscomparingneoadjuvant chemotherapyfollowedbyoncologicalresectiontoupfrontsurgery andadjuvantchemotherapy,threewereprospectivesingle-armphase IItrials,onewasaretrospectivestudyandtheremainingtwowere single-armretrospectivestudiesofneoadjuvantchemotherapy followedbysurgery
Results:AllcasesofLACCweredeterminedandstagedbycomputed tomography NACadministeredwaseitherfolinicacid,fluorouraciland oxaliplatin(FOLFOX)orcapecitabineandoxaliplatin(XELOX) Most studieshadNACcompletionratesofabove83% Timetosurgeryfrom completionofNACrangedonaveragefrom16to31days.The anastomoticleakrateintheNACgrouprangedfrom0to45%,withno casesofpostoperativemortality TheR0resectionrateintheNACgroup was961% Meta-analysisofbothRCTsincludedinthisstudyshowed thatneoadjuvantchemotherapyincreasedthelikelihoodofanegative resectionmarginT3/4advancedcoloncancer(pooledrelativeriskof 047witha95%confidenceinterval)withnoincreaseinadverse consequenceofanastomoticleak,woundinfectionorreturntotheatre
OUTCOMESOFASINGLECENTREREGIONALRENALPHYSICIAN-LED DIALYSISACCESSCLINIC:ACOMPARATIVESTUDY
NimaIranpour(presenter1),Saissan Rajendran(1)
1 ConcordRepatriationandGeneralHospital, Sydney,NewSouthWales
KaviyaKalyanasundaram(presenter,1,2),Sarah Vreugde(1,2),AlkisPsaltis(1,2,3),Peter-JohnWormald (1,2,3)
1AdelaideMedicalSchool,TheUniversityofAdelaide,Adelaide,SA,Australia
2DepartmentofSurgery-OtolaryngologyHeadandNeckSurgery,BasilHetzel InstituteforTranslationalHealthResearch,CentralAdelaideLocalHealth Network,WoodvilleSouth,SA,Australia
3DepartmentofOtolaryngology,HeadandNeckSurgery,QueenElizabeth Hospital
Introduction:Chronicrhinosinusitis(CRS),affecting98%oftheAustralian population,isthoughttobeduetothecolonisationwithpathogenicbacteria, mostcommonlyStaphylococcusaureus
TheincreasingprevalenceofantibioticresistanceinSaureusiscausing problemswitheffectivetreatment,leadingtoprolongedmorbidityinpatients UseofbacteriophageasatreatmentforCRShasshowngreatpromise,butit cannotbeusedagainstphageresistantbacteriawhicharebeingincreasingly discovered Previousfindingsfromourresearchhasshownthatphages generatedinthepresenceoflowantibioticconcentrationscankillphageresistantSaureus
Aim:Totestthesafetyandefficacyofexitphageinvivoinkillingphage resistantS aureus
Methods:Thesafetyandefficacyofthegeneratedphageweretestedinarat modelofsinusitisinfectedwiththephage-resistantS aureus
Results:Lowphagetitresandnormalhistologyofsinusesandorgansafter applicationofhighdosephageintranasallyfor21daysdemonstratedsafety Efficacytrialsinvolved(n=72)ratsinfectedwithphage-resistantSaureus randomisedtoreceive2concentrationsofphageorsalineintranasallyforupto 7days Asignificantdifferenceinthebacterialcountswasseenatdays3,5and 7(p<005) Histologicalinflammationgradeandconfocalmicroscopyshowing liveanddeadbacteriasupplementthesefindings
Conclusion:Preliminaryresultsarepromising:exitphagetherapyhasthe potentialtotransformlivesofCRSpatientsinfectedwithphageandantibiotic resistantSaureus Thistherapycanbeextendedtootherinfectionscausedby Saureusandpotentiallyotherbacterialinfections
Introduction:Metropolitanrenalaccessclinics(RAC)havebeen vascular-ledduetotheintricaciesofsurveillanceandspecialistopen andendovascularintervention Intheruralsettingsthismaynotbe feasible ThisstudyinvestigatestheoutcomesofDubboBaseHospital, aruralrenalphysician-ledRACwithfly-invascularservices The effectivenessofthemodelismeasuredbycomparingoutcomes betweenregionalandmetropolitancentresinNSW
Method:DatawasextractedfromtheANZDialysisandTransplant Registry,from2020-2023 DubbowascomparedtootherNSW Hospitalscodedaseitherruralormetropolitan Statisticalanalysis wasconductedusingPearson’schi-squaretesttoassessthe significanceofdifferences(p<0005)inpatientoutcomes
Results:Analysisshowedaphysician-ledRACwithfly-invascular surgeryserviceswasnotinferiortometropolitanRACs Interestingly, Dubboachievedsignificantlyhigherratesofpermanentvascular accessatfirsthaemodialysiscomparedtocombinedruralandurban centresinNSW Dubboreportedincreasedpermanentaccessatthe startoffirstdialysisfrom40%-75%between2020and2023(chisquare20851(p=0002)) Incontrast,ruralcentresaveraged46% andurbancentres41%forpermanentaccess
Conclusion:Thefindingssuggestthatarenalphysician-ledRACsin theregionalsettingisafeasiblemodeltobridgethegapforaccessto surgicalspecialistservicesavailableinMetropolitanareas Further researchisneededtoconfirmtheseresultsacrossarangeofrenal physician-ledclinicsandtoaccountforpotentialconfoundingfactors andshouldconsiderretrospectivecohortanalysestoexplorethe long-termbenefitsofthisapproach
JaahnaviSaiCheyyur(presenter,1),Riki Wylie(presenter,1),SijingZhang(1),Beth MacLean(1),TobyRichards(1,2)
1 SchoolofMedicine,TheUniversityof WesternAustralia,Perth,WesternAustralia, Australia
2 DepartmentofSurgery,UniversityCollege London,London,UnitedKingdom
Introduction:Anaemiaiscommoninsurgicalpatientsandis associatedwithpoorpost-operativeoutcomes IVironisanattractive treatment,butitseffectsonfunctionaloutcomesareunclear We designedanRCTtoanswerthisquestion Ourstudyaimedtoassess thefeasibilityofrecruitinganaemicpatientstoa12-weekexercisetrial
Methods: Weidentifiedpatientswhounderwentmajorabdominal surgeryatatertiaryhospitalinPerth,WA Patienteligibilitycriteria includedage≥18years,andhaemoglobin(Hb)levelsindicativeof anaemia(<120g/Lforfemalesand<130g/Lformales Primary outcomeswererecruitmentrateandlosstofollow-up Secondary outcomesincludedincidenceofanaemiaandreasonsfornonparticipation
Results:Outof171patientswhohadmajorabdominalsurgery,138were eligible,butourrecruitmentratewasonly29%over6months Outof fourrandomisedpatients,oneparticipantcompletedthe12-week exerciseprogramwiththeotherslosttofollow-uppriortothefirst assessmentpostrandomisation Themainreasonscitedfordeclining participationweredisinterest/unwillingnesstoparticipateinthetrial, followedbytravelandconcernoversurgical/medicalfactors Overall, theprevalenceofanaemiawas807% Ofthoseeligible,mean haemoglobinlevelwas1045g/L[SD±143g/L] Anaemiawasmost evidentinthosewhounderwentuppergastrointestinalsurgery (Hb=979g/L)
Conclusion:Duetothelowrecruitmentrateobserved,itisnotfeasible toassesspost-operativefunctionaloutcomesinanaemicpatients Revisingtrialprotocolstoaddresslogisticalissuesmayleadto increasedrecruitment
ASURVEYOFSURGEONSPERCEPTIONSOFDEFININGANDRECORDING COMPLICATIONSASSOCIATEDWITHELECTIVE,EMERGENCYANDNONOPERATIVESURGICALADMISSIONS.
MartySmith(presenter,1),PaulBurton(1,2),Kalai Shaw(1),AnagiWickramesinghe(2)
1 DepartmentofGeneralSurgery,AlfredHealth, Melbourne,Victoria
2 MonashUniversityDepartmentofSurgery, Melbourne,Victoria
TheClavien-Dindodefinitionofasurgicalcomplication:“anydeviation fromthenormalpostoperativecourse”remainsthemostaccepted definition
Despitethewidespreaduse,theinterpretationandlimitsofthis definitionhavenotbeensurveyed Itsuseinemergencygeneral surgerycontextisalsolimitedbythestatedexclusionofanyevent occurringinthepre-operativephaseofcareorinnon-operative patients
Weaimedtotestthelimitsofthecomplicationdefinitionbyasurvey ofsurgeon’sperceptionsandinterpretationsofclinicalvignettes A surveyof43casevignettesoccurringinallphasesofelective, emergencyoperativeandnon-operativecarewasdevelopedand distributedto77practisingsurgeonsacrossfourtertiaryhospitalsin Melbourne Thecollatedresultswereanalysedforinterrater agreementusingFleissKappastatistic
Fifty-fivesurgeons(71%)responded Thebinarizedproportionalacceptanceof aneventasacomplicationrangedfrom94%(post-operativefever)to100% (unplannedsplenectomy) Therewasbroadsupportforthepresentedpreoperative,intra-operative,andnon-operativeeventsbeingclassedassurgical complications Post-operativeeventswereacceptedascomplicationaccording totheperceivedseverityoftheevent Interrateragreementacrossallscenarios wasfair(Kappa=0254,P<0005);agreementacrossSurgeonsubgroupswas poortofair(Kappa=0194-0458)
Ouranalysisdemonstratesthatdespitean“accepted”definitionthereremains substantialdifferencesininterpretationastowhatshouldbereferredtoasa surgicalcomplication Thishasimplicationsforcurrentandfutureresearchin thatreportingofoveralladmissionmorbiditymaybevariableaccordingtolocal interpretationsofthecomplicationdefinition
COMPARISONOFPRE,MIDANDPOST-PANDEMICEMERGENCYCOLORECTAL CANCERPRESENTATIONSATTHESUNSHINECOASTUNIVERSITYHOSPITAL
MarcioBrussiusCoelho(presenter,1),RoisinChu(2),Zachary Woodward(1),BreeStephensen(1)
1 SunshineCoastUniversityHospital,SunshineCoast, Queensland
2.SchoolofMedicine,GriffithUniversity,Queensland
Introduction:TheCOVID-19pandemichasdisruptedtheoptimaldeliveryof publichealthcareandaffectedthedetectionandmanagementofcolorectal cancer(CRC) InAustralia,thepublichealthmeasuresandsocialimpactofthe pandemichaveallnegativelyaffectedthemanagementofCRC,resultinginyet unknownlong-termeffects ThisstudyaimstocompareemergencyCRC presentationstoourunitandassesstheimpactofCOVID-19onthese presentation’soutcomes
Methods: Retrospectivecohortstudyperformedatatertiaryreferralcentre acutesurgeryunitwithacatchmentareaofalmost500000people,comparing patientswhopresentedtoemergencywithcomplicationsfromCRCbetween1st February2019–29thFebruary2020(pre-COVID),1st March2020–30thJune 2022(mid-COVID)and1stJuly2022–30thJune2023(post-COVID)
Results:183patientspresentedtoourunitasasurgicalemergencysecondary toCRC Ofthose,38wereinthepre-pandemicgroup,91presentedduringthe pandemicand54wereinthepost-pandemicgroup Duringthefollowupperiod of6years,morethan50%ofpatientsdied Moreadvancedstageswere observedduringandafterthepandemic Theaverageagewas67yearsofage (range:17-91)
Conclusion:Weobservedanincreaseinthenumberofemergencycolorectal cancerpresentationssincepriortotheCOVID-19pandemic,withpatients presentingwithmoreadvancedstages Thisraisesthepossibilitythatthe pandemichasaffectedsurveillancemethodsanddelayedpatient’s presentationstodoctorsduetofearofexposuretotheCOVID-19
AUDITOFAUDIOLOGY-LEDFOLLOW-UPFORGROMMETINSERTION
SophieDunmall(1),EngHooiOoi(1)
1
OtolaryngologyHeadandNeckSurgery,Flinders MedicalCentre,SouthernAdelaideLocal HealthcareNetworkandCollegeofMedicineand PublicHealth,FlindersUniversity,BedfordParkSA 5042
Introduction:Grommetinsertionisoftenperformedforrecurrentotitis mediaorhearinglossduetomiddleeareffusions Patientsare reviewedpost-operativelytoensurehearinghasreturnedtonormal andidentifycomplications Itisunclearifthisprocesscanbedoneby anaudiologistinsteadofENTsurgeon Wedesignedaprotocolfor audiology-ledreviewanddischargeofpatientsorreviewbyENTif patientsmetspecificaudiologicalcriteria
Methods:Thisisaretrospectiveauditoftheaudiology-ledreview protocolofpaediatricpatientsfollowinggrommetinsertionataSouth Australiantertiaryhospitalin2021 Theprimaryoutcomewasthe numberofpatientsdischargedbyaudiology Thesecondaryoutcomes wereaudiometryresults,waitingtimesforanENTappointment followingre-referralbyaudiologyandcomparativecostsofthis protocol
Results:50consecutivepaediatricpatients(9monthsto12yearsold) wereidentifiedintheaudit Themedianlengthoffollow-upwas17 months 25(50%)patientsweredischargedwithnormalaudiometry Therewere128audiologyand66ENT(ofwhich23wereroutine6-week post-operative)clinicappointmentsfollowinggrommetinsertion,with anestimatedcostsavingof$8448fortheaudiology-ledprotocol 19 patientswerere-referredtoENTclinicforabnormalaudiometryor recurrentinfection 9(18%)patientsunderwentgrommetre-insertion ThemedianwaittimeforanENTappointmentfromaudiologyreferral was24months
Conclusion:Anaudiology-ledmodelofcareofpatientspostgrommet insertionissafe,cost-effectiveandfeasibleforpatientstoaccessENT clinicsinatimelymannerifrequired SurgicalResearchSocietyofAustralasiaFundAwardconditionscanbe foundontheRACSWebsitehereoremail
AcademicSurgery@surgeonsorgfordetails **Someawardsare subjecttofundingconfirmationanddetailswillbereleasedinthe program
ECONOMICEVALUATIONOF‘WATCHANDWAIT’FOLLOWING NEOADJUVANTTHERAPYINLOCALLYADVANCEDRECTALCANCER:A SYSTEMATICREVIEW
IshraqMurshed(presenter,1,2),ZacharyBunjo(1), WarrenSeow(1),IshmamMurshed(1),Sergei Bedrikovetski(2),MichelleThomas(1,2),Tarik Sammour(1,2)
1.DisciplineofSurgery,AdelaideMedicalSchool, FacultyofHealthandMedicalSciences,Universityof Adelaide,Adelaide,SouthAustralia,Australia
2 ColorectalUnit,DepartmentofSurgery,Royal AdelaideHospital,Adelaide,SouthAustralia,5000, Australia
Introduction:Owingtomulti-modaltreatmentandcomplexsurgery, locallyadvancedrectalcancer(LARC)exertsalargehealthcare burden Watchandwait(W&W)maybecostsavingbyremovingthe needforsurgeryandinpatientcare Thissystematicreviewseeksto identifytheeconomicimpactofW&Wcomparedtostandardcare,in patientsachievingacompleteclinicalresponse(cCR)following neoadjuvanttherapyforLARC
Methods:PubMed,OVIDMedline,OVIDEmbaseandCochraneCENTRAL databasesweresystematicallysearchedfrominceptionto26April 2024 Alleconomicevaluations(EEs)thatcomparedW&Wtostandard carewereincluded Reportingandmethodologicalqualitywas assessedwiththeCHEERS,BMJandPhilipschecklist Narrativesynthesis wasperformed Primaryandsecondaryoutcomeswere(Incremental) Cost-EffectivenessRatiosandtheNetFinancialCost
Results:Of1548studiesidentified,27wereassessedforfulltext eligibilityand12studiesfrom8countries(2016-2024)wereincluded. SevenCost-EffectivenessAnalyses(completeEEs)andfiveCost Analyses(partialEEs)utilisedmodel-based(n=7)ortrial-based(n=5) analyticswithsignificantvariationsinmethodologicaldesignand reportingquality W&Wshowedconsistentcost-effectiveness(n=7) andcost-saving(n=12)comparedtosurgeryfromthird-partypayer andpatientperspectives Criticalparametersidentifiedbyuncertainty analysiswereratesoflocalanddistantrecurrenceinW&W,salvage surgery,perioperativemortalityandutilitiesassignedtoW&Wand surgery
Conclusion:Despiteheterogenousmethodologicaldesignand reportingquality,W&Wislikelytobecost-effectiveandcost-saving comparedtostandardcarefollowingcCRinLARC Registration:PROSPEROCRD42024513874
EarlyCollaborativeStudyIdeasWorkshop
16thNovemberfrom8:00am-9:00am
TheEarlyCollaborativeStudyIdeasWorkshopisan hoursessionheldondaytwoofNAASC
Thisisanopportunityforearlysurgicalresearch ideas/studiestobepresentedinfrontofapanelof experiencedAcademicSurgeons
ThisyearspanelisProfessorDavidBeard,Professor DavidWatson,DoctorHelenMohanandProfessorGuy Maddern
Theaimofthesessionistoofferexpertadvice todevelopyourresearchstudydesign Eachabstract selectedwillgiveashortpresentationofthestudy conceptfollowedbyinformaldiscussionwiththepanel.
Twopresentationswillbeselectedfollowingthe workshoptopresentintheconferenceprogramwith thehighestscoringpresentationbeingawardedthe EmbryonicStudyPrize.
Presenter:DrGabrielOsie
LeadInvestigator:DrGabrielOsie
AppliedMedicalResearchCentreUNSW
DiseaseArea
Nasalobstruction
StudyAim
Tometaanalysecurrentresearchontheimpactofnasalobstructiononcardiopulmonaryfunction
ConceptandResearchQuestion
Concept:Ametaanalysisoncurrentresearchthatlooksattheimpactofnasalobstructiononcardiopulmonaryfunction.
ResearchQuestion:Howdoesnasalobstructionaffectone’slungfunctionandexerciseperformance Therearemany differentstudiesthatlookatthisquestionin1formoranother Studiesthatcomparepatientspreandpostsinonasalsurgery patients,studiesthatcomparepatientswithnasalobstructiontocontrols,studiesthatlookat‘normalpatients’and comparetheirexerciseperformanceoutcomeswhenbreathingthroughthemouthornose,studiesthatlookat mechanicallysplintingthenoseopenandassessingtherespiratoryimpactthathas
BackgroundandJustification
Peopleoftenunderestimatetheimportanceofnasalbreathing.Nasalobstructionisanuncomfortablesensation.Oneneeds onlytohaveacommoncoldtoexperiencethis
Thenoseisessentialforfiltering,humidifying,andwarminginhaledair.Whenthenoseisobstructed,peopleresorttomouth breathingwhichcannotperformthesefunctions.
Existingstudieshavevariablefindingsontherelationshipbetweennasalobstructionandpulmonaryfunctionandexercise performance
Thissystematicreviewandmeta-analysisaimstoconsolidatecurrentevidence,providingamorecomprehensive understandingofhownasalobstructionimpactspulmonaryfunctionandexerciseperformance,whichmayguidefuture researchandclinicalinterventions
Studydesign
Abroadyetthoroughdatabasesearchwillbeperformedtocaptureallarticlesthatcouldpossiblyexplorethisquestion
Population:Adultsandchildren>5yearsold.
Intervention/exposure:patientswithnasalobstruction.Thismayincludepatientswithpathologicalnasalobstruction (whetherthat’ssubjectiveorobjective)orexperimentalobstruction(eg vianasalclips)
Control/comparison:patientswhoarenormalnasalbreathers Thismayincludeeitheranormalcontrolpopulation,post operativepatients,orpatientswithoutexperimentalobstruction.
Outcomes:–objectiverespiratoryandexerciseperformanceoutcomes.
-Respiratory
oSpirometry(eg FEV1,FVC,FEV1/FVC),pulseoximetry,FEF25-75,PEFR,tidalvolumesetc
-Exerciseperformance
oVO2max,HRmax,poweroutput,maxspeed,maxexercisetimeetc.
Ameta-analysisoftheresultswillbeperformedifadequatedataiscollected
PrimaryAim
TodeterminetheproportionofallliverresectionsthatareperformedforpatientswithNCLMinAustraliaoverthelastten years(2014-2023),withcomparisoninratesbetweenthefirstandlastfive-yearperiod
Presenter:DrSiobhanMcKay
LeadInvestigator:ProfessorAnubhavMittal
UGIDepartment,RoyalNorthShoreHospital,Sydney DiseaseArea
Pre-operativeimagingforpredictingpost-pancreatoduodenectomypancreaticfistula(CR-POPF)risk
StudyAim
Evaluatetheutilityofpre-operativepancreatic-tail-densityonCTforpredictingCR-POPF.
ConceptandResearchQuestion
Thisinternational,multicentre,retrospectivestudyaimstoassesstheclinicalutilityofpre-operativeCTimagingofthe pancreatictailtopredicttheriskofCR-POPF.Byanalysingpancreatictaildensityandenhancement correlatesforacinar celldensity thestudyseekstoestablishareliable,non-invasiveriskpredictiontoolthatsupportssurgicaldecision-making andoptimisespatientoutcomesinapragmaticreal-worldsetting
BackgroundandJustification
Post-operativepancreaticfistulaisamajorcauseofmorbidityandmortalityfollowingpancreatoduodenectomy Although advancesinsurgicaltechniqueshaveloweredmorbidityratesinhigh-volumecentrestounder1%,theincreasinginclusion ofelderlyandcomorbidpatientshasledtohigherratespost-operativemorbidity,particularlyincaseswithoutpancreatic ductobstruction.
Theacinarcellscore,measuringacinarcellandadipocytedensity,hasshownpromiseasanintra-operativepredictorof CR-POPFrisk Pancreatictaildensityandenhancementonpre-operativeCThavebeencorrelatedwithacinarcellscores, suggestingpotentialasapre-operativetoolforpredictingCR-POPF.AriskpredictionmodelbasedonCTwouldenhance individualiseddecision-makingandinformsurgicaldiscussions.
Ourpilotstudy(n=90)demonstratednon-contrastdensityofthepancreatictaileffectivelypredictedPOPF(AUROC0704, p=0.036),cutoffof>40Hounsfieldunitsyielding70%sensitivityand73.4%specificity.Thisstraightforwardmeasurecould integrateintosynopticimagingreports,supportingsurgical planning/consent
Studydesign
Population:Consecutivepatientsundergoingpancreatoduodenectomyforanyindicationfrom2022-2024.
Intervention:Pre-operativeCTassessmentofpancreatictaildensityandenhancement
Comparator:Existingpre-operativeriskpredictiontools
Outcome:Incidenceofclinicallyrelevantpost-operativepancreaticfistula(CR-POPF).
PrimaryObjective
Todeterminetherelationshipbetweenpre-operativepancreatictaildensity/enhancementonCTandCR-POPFincidence
StudyDesign
Thisretrospective,multicentrecohortstudywillestablishapragmatic,non-invasivepredictionmodelforCR-POPFbasedon existingpre-operativeCTimaging AnonymiseddatawillbeenteredintoacentralREDCapdatabaseforanalysis Allcentres performingpancreatoduodenectomyinternationallywillbeinvitedtojointhestudy. Thestudywillutiliseandstrengthen existingHPBcollaborativenetworkstoensurewidespreadstudyrecruitment.
Presenter:MrJathinSilochan
LeadInvestigator:MrJathinSilochan
NationalInstituteofStrokeandAppliedNeurosciences
DiseaseArea
Post-operativecare,cognitiveimpairment,indigenoushealth
StudyAim
Improvethepost-operativeoutcomeofindividualswhohavebeenaffectedbycognitiveimpairment
Individualsover65thathavebeendiagnosedwithmildtomoderatecognitiveimpairmentasaresultofneurodegenerative diseases(NDD),suchasdementiaandorAlzheimer's,areupto83%morelikelytosufferafall-mostresultinginahip fractureandrequiringsurgicalinterventionwithinayear.However,thescarceresearchonpatientswhohaveundergone surgicaltreatmentswithpre-existingNDDsuggestthattheynotonlyhavepooreroutcomespostoperatively;butarealso lesslikelytobeadmittedintolongtermcarefacilities(LTC)suggestingthattheymaynotbereceivingthesameaccessto careasnonNDDpatients Inpart,thiscouldbeduetotheinabilityofNDDpatientstocommunicatetheextentoftheirissues (anosognosia)butalsothereluctancyofNDDpatientstobeplacedinaforeignenvironment.Ibelievemorecanbedonefor NDDpatientsthatwon'trequireLTC
AotearoahasanageingpopulationwithanincreasingprevalenceofNDD-thefiguressuggestthatthiswillmeanalikelyrise indemandforfallsrelatedsurgicalintervention
Inordertobetterservethiscommunityofadultsweneedtounderstandtheirneedsandhowtoworkwiththem
Acommonthemeatmanyagedcarefacilitiesisthattheysimplydonothavethespacetocatertothegrowingdemand Additionally,inmanyMāoriandPasifiskafamilies,eldersremainathomeforotherfamilymemberstotakecareof Inorder toeasethelikelydemandinsurgicalinterventionandimprovehealthoutcomespostoperativelyforthewiderangeof patientsseeninAotearoa,weneedtoexploreavenuesofimprovingaccessandeducationtonotjustagedcarefacilities butalsofamilycaregivers Thiswillhavebenefitsonmanyaspectsofpostoperativecare
Studydesign
TheprimaryobjectiveofthestudyistofindmechanismsofimprovingpostoperativecareofNDDpatients-specificallythose whohavesufferedafallandrequiresurgery
Thepatients,orpopulation,willbeanyonewhohasbeendiagnosedwithmildtomoderatedementiaANDhashadafall requiringlowerlimbicsurgicalintervention.Wewillberecruitingfromavarietyofethnicities,incomes,gendersand backgrounds.Thislargepopulationwillgiveustheabilitytoidentifyvulnerablegroupsaswellasalargepopulationsizehas manybenefitstothevalidityofthestudy
Theinterventionofthestudywillbefocusingoneducationandortheuseoftechnology(suchasmobileapps)toensure thatthepatientsareimprovingpostoperatively.Thiscanbesomethingsimplelikeensuringthatthestayhomecaregivers areawareofthebenefitsofencouragingphysicalrehabilitation,ortheintroductionanduseofamobileappthatreminds, andencourages,thepatientontheirpostoperativejourney
Currently,therehavenotbeenspecificstudiesthathavetriedtoimprovethepostoperativecareofNDDpatients.Similar studieshavehighlightedthatNDD/dementiapatientshavepoorerhealthoutcomesbuttherehasyettobeanactivestudy thatlooksatwaystoimprovetheirpostoperativecare
Theoutcomesofthestudywillbemeasuredinthelongtermbenefits.Asmentioned,poorerhealthoutcomesofNDD patientsmeansthattheyarelikelytohaveanotherfallandorfurthercomplicationspostsurgery Iftheinterventionis successfulandtheyareabletorehabilitatepostoperativelywewillseealowernumberofreturnvisitsfromNDDpatients requiringfurthersurgeryorotherrelatedmedicaltreatment.
Presenter:SarahLin
LeadInvestigator:TBA
TrialsandAuditsinSurgerybyMedicalStudentsinAustraliaandNewZealand(TASMAN)
DiseaseArea
Preoperativeanxiety
StudyAim
Toinvestigatetheimpactofpreoperativeanxietyonpostoperativepainoutcomes
ConceptandResearchQuestion
Whatistheimpactofpreoperativeanxietyonpostoperativeanalgesiaconsumptionandpatientreportedpainoutcomes? Thisstudywillaimtoprovideanunderstandingofhowpreoperativeanxietyinfluencespostoperativepain,contributing valuableinsightstoperioperativecare Thefindingsmayhelpinformstrategiestoimprovepainmanagementandsurgical recoverybasedonresultsofpreoperativepsychologicalassessments
Preoperativeanxietyisdefinedasthefeelingofuneaseorfearthatresultsfromconcernsrelatingtoapatient'ssurgeryor anaesthesia Preoperativeanxietytriggersarangeofpsychologicalandphysiologicalresponses,withclinical manifestationsincludingirritability,tachycardiaandhypertensionthatarelargelydrivenbyheightenedautonomicactivity. Increasedpreoperativeanxietyhasbeenassociatedwithhigherincidencesofpostoperativeadverseevents,lowerlevelsof patientsatisfaction,andhigheranalgesicrequirementsfollowingsurgery
However,mostexistingresearchontheeffectsofpreoperativeanxietyonpostoperativepainoutcomesarelimitedto dental,gynaecologicalorveryselectivegeneralsurgeryprocedures Thereisanotablegapintheliteratureconcerningthe broaderelectivesurgerypopulation,particularlyinrelationtopostoperativeanalgesicuse Furthermore,nostudiestoour knowledgehavespecificallyexaminedtheseeffectsinAustralianandNewZealandelectivesurgerycohorts
P:Adultsaged18andoverundergoingelectivesurgeryrequiringgeneralanaesthesia
I/E:Highpreoperativeanxietylevel
C:Adultswithnotolittlepreoperativeanxiety
O:Postoperativeanalgesiaconsumption(measuredinoralmorphineequivalentdoses)
QUESTisaninternational,multicentre,cross-sectionalobservationalstudywiththeprimaryobjectiveofquantifyingthe impactofpreoperativeanxietyonpostoperativeanalgesicconsumption Itwillrunasacollaborativeresearchtrial modelwithdatacollectionperiodsoccurringoverthreecontinuoustwo-weekstudyperiods.
Patientsundergoingelectivesurgicalprocedureswillbeidentifiedandinvitedtoparticipate Afterconsentisgained, preoperativeanxietylevelswillbeassessedusingtheSurgicalAnxietyQuestionnaire Thisisavalidated17-itemselfreportedquestionnairethatpatientscancompleteasanonlinesurvey,withquestionsinvestigatinganxiety-inducing concernsregardingtheirgeneralhealth,surgicalrecoveryandthesurgicalprocedureitself Patientswillbefollowedupfor sevendaysaftersurgery Duringthistime,in-hospitalopioidconsumptionwillbedocumented Atsevendayspostsurgery, patientswillbeaskedtocompleteanotheronlinesurveytoquantifyopioidconsumptionafterdischarge(ifany),andto evaluatepatientreportedpainoutcomesusingtheAmericanPainSocietyPatientOutcomeQuestionnaire(APS-POQ-R).
Theprimaryobjectiveistodefineanyassociationbetweenpreoperativeanxietyandpostoperativepainasmeasuredby ourprimaryoutcomeofpostoperativeopioidconsumptionandsecondarypatientreportedpainoutcomesobtainedfrom theAPS-POQ-R.TherelationshipbetweenpreoperativeanxietyandopioidusewillbeassessedusingPearson’scorrelation coefficient Subgroupanalyseswillexplorevariationsinoutcomesacrossdemographicfactorsandsurgicaltypes
Presenter:DrChristineLi
LeadInvestigator:DrBenjaminLoveday
PeterMacCallumCancerCentre DiseaseArea Liverresections
StudyAim
Determine&characterisetheproportionofliverresectionsforNCLMinAustraliaoverthelast10yr
ConceptandResearchQuestion
ThisisanAustralia-wide,multi-institutionalretrospectivecohortstudyofpatientswhohaveundergonealiverresectionfor primarylivercancer,metastasestotheliver,orbenigndiseaseoverthelasttenyears(2014-2023) Asuiteofsub-studieswill beundertakentoanalyseindividualcohortsseparately
ThefirstAUSLIVERstudywillanalysepatientswhohaveundergonealiverresectionfornon-colorectallivermetastases (NCLM),takingdatafromwithintheentireAUSLIVERcohort
Weaimtocharacterisethiscohortofpatientsand,inparticular,toidentifyhowthishaschangedoverthetenyearstudy period Weaimtoprovideanationalanalysisofpatternsofcareovertimeandtoidentifywhethertheimplementationof newtechnologies,suchasroboticsurgery,andtheadventofimmunotherapyisassociatedwithchangesinthepatternof liverresectionsforNCLM
HepatectomyforNCLMisperformedinfrequentlyduetouncertaintyaboutitsoncologicbenefitformanycancers However, thereisincreasinginterestintheroleofliverresectionforthesepatientstoimprovedisease-freeandoverallsurvival Cancertreatmentshaveevolvedovertimewithdevelopmentofmoreeffectivechemotherapyregimens,immunotherapy, targetedtherapies,andtheranosticapproaches Inparticular,immunotherapyhastransformedthemanagementofmany malignancies,suchthatliverresectionisnowconsideredtoremoveresidualoroligoprogressivedisease
DataaboutsurgicalmanagementofNCLMpredominantlycomesfromsmall,singleinstitutionobservationalstudies There isonepreviousAustralianstudyonthesurgicalmanagementofNCLM,publishedin2016,with16patientsfromasingleunit DatafromothercountriesmaynotbegeneralisabletotheAustraliancontext
ThisstudywillprovideanAustraliananalysisofliverresectionforNCLMandwillbetheonlystudyofitstypeinthisregion Studydesign
ThisisanAustralia-wide,multi-institutionalretrospectivecohortstudywithcentres(publicandprivatehospitals)invitedto participate TheentireAUSLIVERcohortwillincludeallconsecutiveunselectedpatientswhohaveundergoneliverresection between1January2014and31December2023 ThefirstAUSLIVERstudywillanalysespecificallypatientswhohave undergonealiverresectionforNCLMwithinthiscohort,asconfirmedhistopathologically Datapointswillbecollectedby individualsites,andthencollatedandanalysedbytheprimarysite.
Population:liverresectionfornon-colorectallivermetastasisinAustraliabetween2014-2023
Intervention:evolvingcancertherapiesovertime
Comparison:comparingthefirstfive-yearperiod(2014-2018)andsecondfive-yearperiod(2019-2023).
Outcome:proportionofliverresectionsforNCLM,changeincohortofpatientswhoundergoliverresectionforNCLM, differencesinperi-operativeanti-cancertherapies
PrimaryAim
TodeterminetheproportionofallliverresectionsthatareperformedforpatientswithNCLMinAustraliaoverthelastten years(2014-2023),withcomparisoninratesbetweenthefirstandlastfive-yearperiod
SecondaryAims
TocharacterisethecohortofpatientsinAustraliawhounderwentliverresectionforNCLMoverthelasttenyears
TodeterminetheresectiontechniquesforNCLM(majorversusminorliverresection)
Todetermineanydifferencesinprimarydiagnosesoverthestudyperiod
Todetermineanydifferencesinperi-operativechemotherapyandimmunotherapyregimesbetweencohortsfromthe firstandsecondfiveyearsofthestudyperiod
TodetermineoverallsurvivalforpatientswhoundergoliverresectionforNCLM
Presenter:DrChenLew
LeadInvestigator:DrJuneOo
GeneralSurgery/AlfredHealth
DiseaseArea
Trauma,Bluntliverinjury,Hepaticembolisation,ERCP,Infectivecomplications
StudyAim
Toassesstheoutcomeofmajorliverinjuriesinlevel1traumacentersinAustralia
ConceptandResearchQuestion
Thismulticentrestudywillinvestigatetheoveralloutcomesfollowingmajorbluntlivertrauma,inparticularmanagementof liverspecificcomplicationsfollowinginjury Datafromlevel-1traumacentreswillbeanalysedtoprovideacomprehensive understandingoftheapproachestomanagingcomplexliverinjuriesanditsassociatedcomplications.Theultimategoalis todevelopacollaborativetraineenetworkforlivertraumaresearchacrossAustralia,withtheaimtoupdateclinical guidelinesonmanagementofbluntlivertrauma,inparticularmanagementofcomplicationspostinjury
BackgroundandJustification
Bluntliverinjury,acommonfindinginabdominaltrauma,oftenleadstocomplicationssuchasbileleak Hepatic embolisationforcontrollinghaemorrhageinhigh-gradeliverinjuriesalsoincreasesbileleakrisk Asingle-centrestudy foundbileleakin49%ofbluntlivertraumacases,withagreaterincidenceinthoseundergoinghepaticembolisation ERCP iswidelyusedtomanagetheseleaks,althoughearlyERCPmayincreaseinfectionrisk.Surgicalandpercutaneous interventionsarealsoessentialmanagementoptions,especiallyincomplexcases Amulticentrestudywillprovidebroader dataontimingandoutcomesoftheseinterventionstorefinebestpractices
Thismulti-specialtycollaborationwillinvitealllevel-1traumacentrestocontribute. Althoughbluntliverinjuryiscommon, biliarycomplicationsarelessfrequent Amulticentredesignwillincreasethenumberofcasesassessedforthiscomplex clinicalquestion Thismulti-specialtystudywillfostercollaborationacrosstheAustraliantraumanetworkpromotingfuture studies
Studydesign
Population:Adultpatients(18years+)withbluntlivertraumaatAustralianlevel-1traumacentresIntervention:Active managementapproachesforliver-specificcomplications,includinghepaticembolisation,ERCP,percutaneous drainage,andsurgicalinterventions.
Comparison:Conservativemanagementanddelayedinterventionapproachesforliver-specificcomplications Outcome:Ratesofinfectiveandothercomplications(eg,bileleaks,abscessformation)post-intervention
PrimaryObjective
Toassessmanagementandoutcomesfollowingmajorbluntlivertrauma.
StudyDesign:
ThisretrospectiveobservationalstudywillincludedatafromAustralianlevel-1traumacentresonpatientswithbluntliver traumafrom2014-2024.Eligiblepatientswillbeidentifiedviaelectronicmedicalrecordsortraumadatabases.
Inclusioncriteria:
Adultpatients–18yearsandabove
Mechanism:bluntliverinjury–AASTGrade3andabove,oroperativefindingofliverinjurywithoutpriorimaging
Potentialleadinvestigatorswillbeapproachedateachlevel-1traumacentre,whowillberesponsibleforoverseeingthe datacollectionprocess.Leadinvestigatorswillsecureethicsapproval,recruitupto10teammembersfordatacollection, andcoordinateacrosskeysurgicalunits(hepatopancreaticobiliary,generalsurgery,upperGI) Dataextractedwillinclude demographics,overallinjuryseverityscore,liverinjuryseverity(basedontheAASTliverinjuryscale),interventions,overall outcomes(Clavien-Dindocomplications,theneedforfurtherproceduralintervention,mortalityandlengthofhospitalstay) andliverspecificoutcomes(abscess,bileleak)&interventions(percutaneousdrainage,resectionaldebridement,ERCP). StandardisedformsinREDCapwillenableuniformdataentryandvalidationacrosscentres,whileacentralteamwillreview dataforaccuracy Centralisedstatisticalanalysiswillidentifyriskfactorsforcomplications,particularlyregardingERCP timing,andsubgroupanalyseswillassessinjurygradesandadjuncttreatments.
TheSurgicalResearchSocietyofAustralasiaconferencehasmultipleawardsavailabletoeligible presenters.
Theseare:
ProteomicsInternational,YoungInvestigatorAward:OneAUD4,000prizeisawardedtoapresenterless than10yearspostfellowship.TheYoungInvestigatorAwardprovidesfundstosupporttheattendanceand presentationattheAcademicSurgicalCongress(ASC)intheUSAin2025.
ANZChapteroftheAmericanCollegeofSurgeons:OneAUD2,000prizeisawardedtoapresenterwhohas beenaFellownotmorethan5years.TheANZChapteroftheAmericanCollegeofSurgeonsAwardrequires theAwardeetopresenttheirresearchattheANZChapterSurgicalForumattheRACSAnnualScientific Congressthefollowingyear.
NovemberAnnualAcademicSurgeryConferenceTravelGrant-HigherDegree:Prize:(AUD1,000each)is awardedtoapresenterwhoisundertakingahigherdegreebyresearch TheTravelGrantfundsexpenses towardstravel,accommodationandconference/courseregistration
NovemberAnnualAcademicSurgeryConferenceTravelGrant–Clinical:Prize(AUD1,000each)isawarded toapresenterwhomustbeaSETTrainee,Pre-vocationalDoctororMedicalStudent TheTravelGrantfunds expensestowardstravel,accommodationandconference/courseregistration
ElseviereBookVouchers:ElsevierhavegenerouslydonatedthreeBookvouchersvaluedatAUD150each Theseprizeswillbeawardedtothebestvisualpresentationineachcategory(oralandposterpresentation) aswellasthetopEarlyCollaborativeStudyIdeaspresentation Allpresentersareeligibleunlesstheyhave alreadyreceivedanawardduringtheconference,orasotherwisecommunicated
ResponsibilitiesforWinners:Allawardandprizewinnersaretosubmita300wordreporttotheAcademic SurgeryCommitteewithin12monthsdetailingtheirlearnings,andanyresultingcollaborationsand/or publications/presentations
AboriginalandTorres StraitIslandermotif
TheMāorimotif indicatesRACS’ commitmentto addressMāorihealth inequitytoaccept obligationsinherentin teTiritioWaitangi
AboriginalandTorres StraitIslandermotif
TheAboriginaland TorresStraitIslander motifindicatesRACS’ commitment toaddressAboriginal andTorresStrait Islanderhealth inequity.
MembershipoftheSectionofAcademicSurgeryisopentoFellows,Traineesand InternationalMedicalGraduates(SIMGs)onapathwaytoFellowshipwhohaveaninterest inacademicsurgery TheExecutiveCommitteeoftheSectioncanalsooffermembershipto individualswhoareexternaltotheCollegeonrecommendationfromtheChair.Non Collegemembersmayhavetopayamembershipfeebutwillnothavevotingrightsand arenoteligibletoholdgovernancepositions.
TodevelopandmonitorstandardsinacademicsurgicaldepartmentsinAustraliaand AotearoaNewZealand
Toenhancecareerpathwaysinacademicsurgeryandtoencourageyounger surgeonstopursueopportunitiesinacademicsurgery
TodevelopanAustralasiancurriculumforundergraduatesurgery,toprovideadviceto AustralianandAotearoaNewZealandmedicalschoolsregardingappropriatesurgical content,andwhichisappropriateforcontinuationtosurgicaleducationandtraining ToadviseRACSCouncilonprofessionalandpolicyissuesrelatedtoacademicsurgery, aswellasissuesofrelevancetosurgeryingeneral
TorespondtorequestsfromCouncilforconsiderationofrelevantissues.
Toestablishandmaintainaregistryofacademicallyactivemembersinorderto supporttheSection'sactivitiesandplanappropriateworkforceissues.
TheSectionofAcademicSurgeryisgovernedbytheAcademicSurgeryCommittee reportingtotheResearch&AcademicSurgeryCommittee(RASC)andtheProfessional StandardsandFellowshipServices(PSFS)Committee.
Submittinganapplication: Doyouhaveaninterestinacademicsurgery?Tojointhecommunityofacademicsurgeonstodayforfree,simply completethisapplicationform.Moreinformationcanbefoundhere