Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor, MI.
Center for Vision and Eye Banking Research, Eversight, Cleveland, OH.
Cornea. 2021 Aug 1;40(8):1018-1023. doi: 10.1097/ICO.0000000000002748.
The purpose of this study was to assess the impact of COVID-19 guidelines for corneal donor tissue screening and the utility of routine postmortem COVID-19 testing of donors intended for surgical use at a single eye bank.
A retrospective analysis of referrals to and eligible donors from an eye bank between March 1, 2020, and June 30, 2020, was performed, with the same time period in 2019 as a control. Referrals who were not procured because of Eye Bank Association of America COVID-19 guidelines and eye bank-specific restrictions were noted. The results of 1 month of routine postmortem testing performed by the eye bank were examined. Analysis of variance tests were performed to assess the change between donors from 2019 to 2020.
There was a significant reduction in both the number of total referrals to the eye bank (P = 0.044) and donors eligible for surgical transplantation (P = 0.031). Eye Bank Association of America COVID-19 guidelines reduced the number of referrals over this period by 4% to 14%. Of the 266 surgically eligible donors who received postmortem COVID-19 testing in June by the eye bank, 13 resulted positive (4.9%).
Despite a reduction in referrals and eligible corneal transplant donors at a single eye bank, there was a surplus of surgically suitable corneal tissue during the first wave of the COVID-19 pandemic. Eye banks should consider routine postmortem COVID-19 testing to identify asymptomatic infected donors although the risk of transmission of COVID-19 from infected donors is unknown.
本研究旨在评估针对角膜供体组织筛选的 COVID-19 指南的影响,以及在一家眼库对计划用于手术的供体进行常规死后 COVID-19 检测的效用。
对 2020 年 3 月 1 日至 6 月 30 日期间一家眼库的转介和合格供体进行了回顾性分析,并将 2019 年同期作为对照。记录因美国眼库协会 COVID-19 指南和眼库特定限制而未获得的转介。还检查了眼库进行的 1 个月常规死后检测的结果。使用方差分析检验评估 2019 年至 2020 年供体之间的变化。
眼库的总转介数量(P = 0.044)和适合手术移植的供体数量(P = 0.031)均显著减少。在此期间,美国眼库协会 COVID-19 指南使转介数量减少了 4%至 14%。在 6 月接受眼库死后 COVID-19 检测的 266 名符合手术条件的供体中,有 13 名呈阳性(4.9%)。
尽管一家眼库的转介和合格角膜移植供体数量减少,但在 COVID-19 大流行的第一波期间仍有大量适合手术的角膜组织。尽管从感染供体传播 COVID-19 的风险未知,但眼库应考虑常规死后 COVID-19 检测,以识别无症状感染供体。