2021 U-M Kellogg Eye Center Annual Report

Page 9

from general surgery and otolaryngology, and colleagues from

benefit from teprotumumab; at U-M these complex patients are

adult and pediatric endocrinology, nuclear medicine, and

supported by a team involving ophthalmologists, endocrinolo-

neuroradiology.

gists, thyroid surgeons, and nuclear medicine specialists,”

Cross-disciplinary dialog is especially important in the era of teprotumumab (Tepezza), the first and only FDA-approved

says Dr. Kim, who coordinates the conferences. “Our patients appreciate that so many providers are involved in their care.”

treatment specific for TED. Originally formulated as a cancer

An ongoing series of virtual multi-disciplinary teaching

treatment, the drug was translated for use in TED by Kellogg

conferences is also helping Kellogg providers share best practices

endocrinologist Terry Smith, M.D.

in the diagnosis and treatment of orbital disorders with col-

“Patients with moderate to severe Thyroid Eye Disease can

leagues in the departments of plastic surgery and otolaryngology.

COVID-19 Transmission Risk in Cornea Transplantation In 2020, researchers studying COVID-19 transmission identified the virus in conjunctival swabs and tears collected from infected This finding prompted a study led by Kellogg cornea transplant surgeon Shahzad Mian, M.D., in conjunction with Eversight Eye Bank and Wayne State University to address COVID-19 related concerns that could impact cornea transplantation. The study was funded by the Eye Bank Association of America (EBAA)

through a program targeting issues arising from the spread of COVID-19. “Since COVID-19 patients

WITH MORE THAN 5 MILLION

PEOPLE WORLDWIDE LOSING THEIR

SIGHT FROM CORNEAL DISEASE, WE NEED

it’s policy of not transplanting

TO DO ALL WE CAN TO ENCOURAGE CORNEA

cornea tissue that comes from

patients.

donors with any of these 3 char-

DONATION AND MAXIMIZE THE GLOBAL

hold much of the virus in the upper respiratory tract, we were not surprised

acteristics. The addition of both donor screening and postmor-

SUPPLY OF DONOR TISSUE.

that the virus could also contaminate

— Shahzad Mian, M.D.

the outer layers of the eye, via coughing, sneezing or hand-to-eye contact,” says Dr. Mian, Kellogg’s Vice Chair for Clinical Sciences and Learning. “Our study focused on the consequences of that finding for cornea transplantation.” Dr. Mian’s team analyzed postmortem ocular tissue samples

tem nasopharyngeal PCR testing for COVID-19 might enable the use of corneas from donors in these subgroups. “With more than 5 million

people worldwide losing their sight from

corneal disease, we need to do all we can to

encourage cornea donation and maximize the global supply of donor tissue.”

from three donor subgroups whose tissues were disqualified

Despite the pandemic, Dr. Mian reinforces the safety of

from surgical use: 1) intended cornea donors who died from

cornea transplantation. “Even though cornea tissue can contain

COVID-19; 2) potential donors who were asymptomatic but

the virus, there have been no cases of transmission through

tested positive at time of corneal recovery; and 3) potential do-

corneal transplantation,” he says. “In the rare instances where

nors who exhibited symptoms prior to death but tested negative

a donor who was positive for COVID-19 was inadvertently

for the virus.

transplanted it has not resulted in infection. Nonetheless,

Approximately 13 percent of the ocular tissue samples

additional research is needed.”

tested positive for COVID-19. The EBAA has thus continued 7


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