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COMPLICATIONS IN QUANTITATIVE MUSCULAR ASSESSMENT (QMA) IN ALS PATIENTS F U N D E L A

Minaya F1, Valera F1, Marín S2, Medina F3, Mora J2, Salas T4 1Dept

of Physical Therapy; 2Dept of Neurology; Neuromuscular Research Unit, Hospital Carlos III, Madrid, of Physical Therapy, University of Murcia, Spain; Murcia, Murcia, Murcia, Spain; 4FUNDELA, ALS Research Foundation, Madrid, Spain. 3Dept

In the course of ALS, the capacity of muscle to exert force is the most direct measurement of the natural history of the disease. For this reason, muscle strength is the outcome measures most useful to provide the most useful information in ALS clinical trials. Our previous studies had concluded that outcome measure in ALS clinical trials should include QMA because Medical Research Council Scale is insensitive to small changes. changes.

OBJETIVES: The purpose of the study was to analyze the possible complications in the quantitative muscular assessment (QMA) test in ALS patients.

METHODS: Observational Retrospective Study. Study. The inclusion criteria were: a) Diagnosis of probable or definitive ALS (El Escorial diagnostic criteria). b) QMA for ALS patients at the Neuromuscular Quantitative Evaluation Lab of the Hospital Carlos III (Madrid, Spain). Protocol of QMA included measurement of: 1) Shoulder abduction-adduction (supine decubitus). decubitus). 2) Elbow flexion-extension (supine decubitus). decubitus). 3) Knee flexion-extension (sedestation). sedestation). 4) Grip strength (sedestation). sedestation). Tests were realized in both limb using an electronic strain gauge tensiometer and a electronic Jamar dynamometer.

RESULTS: 139 tests have been analyzed for a total of 51 patients during the study period. The main complications presented by the patients were the following ones: a) Transitory fatigue after test (86%). b) Transitory cerebral ischemia, ischemia, minimal subarachnoid hemorhage (0.7%; n =1). c) Cardivascular symptoms such as taquicardia, taquicardia, hypertension, arritmias (0%). d) Transitory dyspnea (12%).

CONCLUSIONS: • QMA are safe tests. Only a minimum percentage of complications are serious (0.7%). • The most frequent complications are transitory fatigue after test (86%) and transitory dyspnea (12%). • The design of a informed consent document for the QMA testing is necessary.

International Symposium on ALS/MND

INTRODUCTION:


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