PMID- 36371055 OWN - NLM STAT- MEDLINE DCOM- 20230117 LR - 20230216 IS - 1937-5913 (Electronic) IS - 1542-0124 (Linking) VI - 27 DP - 2023 Jan TI - Outcomes of keratolimbal allograft from ABO compatible donors for severe bilateral limbal stem cell deficiency. PG - 48-53 LID - S1542-0124(22)00094-5 [pii] LID - 10.1016/j.jtos.2022.11.002 [doi] AB - PURPOSE: To report outcomes of keratolimbal allograft (KLAL) compatible for both human leukocyte (HLA) and/or blood type using oral prednisone, mycophenolate, and tacrolimus, with basiliximab if panel reactive antibodies (PRA) are present. Intravenous immunoglobulin (IVIG) was used post-operatively if donor-specific anti-HLA antibodies (DSA) were present. METHODS: Retrospective interventional series of consecutive patients with KLAL for limbal stem cell deficiency (LSCD) from HLA and/or blood type compatible deceased donors with a minimum follow-up time of 12 months. Main outcome measures were ocular surface stability, visual acuity and systemic immunosuppression (SI) adverse events. RESULTS: Eight eyes of eight patients with mean age of 48.6 +/- 10.1 years (range 34-65 years) were included. Mean follow-up time was 37.3 +/- 22.7 months (range 12-71 months) following KLAL; four (50%) had combined LR-CLAL surgery. The etiologies of LSCD were Stevens-Johnson Syndrome (n = 4/8), aniridia (n = 2/8), chemical injury (n = 1/8) and atopic eye disease (n = 1/8). All patients had PRA present and received basiliximab infusions. 5/8 patients received IVIG based on DSA identified pre-operatively. At last follow-up, 7 eyes (87.5%) had a stable ocular surface; 1 eye (12.5%) developed failure and had keratoprosthesis implantation. There was a significant improvement in visual acuity from 1.65 +/- 0.48 to 0.68 +/- 0.34 logMAR (p = 0.01). SI was tolerated well with minimal adverse events. CONCLUSIONS: Preliminary outcomes of KLAL with ABO compatible tissue using the Cincinnati protocol, preoperative basiliximab (when PRA present) and post-operative IVIG (when DSA present) are encouraging. This protocol may allow for utilization of deceased donor tissue with results approximating those of living donor tissue transplanted for severe bilateral LSCD. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Mimouni, Michael AU - Mimouni M AD - University of Toronto, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada; Department of Ophthalmology, Rambam Health Care Campus affiliated with the Bruce and Ruth Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel. FAU - Cole, Edward AU - Cole E AD - Department of Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. FAU - Kim, S Joseph AU - Kim SJ AD - Department of Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. FAU - Schiff, Jeffrey AU - Schiff J AD - Department of Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. FAU - Cardella, Carl AU - Cardella C AD - Department of Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. FAU - Tinckam, Kathryn J AU - Tinckam KJ AD - Department of Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada. FAU - Slomovic, Allan R AU - Slomovic AR AD - University of Toronto, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada. FAU - Chan, Clara C AU - Chan CC AD - University of Toronto, Department of Ophthalmology and Vision Sciences, Toronto, Ontario, Canada. Electronic address: clarachanmd@gmail.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221109 PL - United States TA - Ocul Surf JT - The ocular surface JID - 101156063 RN - 9927MT646M (Basiliximab) RN - 0 (Immunoglobulins, Intravenous) SB - IM MH - Humans MH - Adult MH - Middle Aged MH - Aged MH - Cornea MH - *Corneal Diseases/surgery MH - Stem Cell Transplantation/methods MH - Basiliximab MH - Retrospective Studies MH - Immunoglobulins, Intravenous MH - Limbal Stem Cells MH - *Limbus Corneae MH - Prostheses and Implants MH - Allografts OTO - NOTNLM OT - ABO blood type OT - Cadaver OT - Compatible OT - Deceased donor OT - HLA OT - KLAL OT - Keratolimbal allograft OT - Limbal stem cell deficiency OT - Limbal stem cell transplant OT - Matching OT - Ocular surface stem cell transplant COIS- Declaration of competing interest None. EDAT- 2022/11/13 06:00 MHDA- 2023/01/18 06:00 CRDT- 2022/11/12 19:38 PHST- 2022/07/27 00:00 [received] PHST- 2022/11/05 00:00 [revised] PHST- 2022/11/08 00:00 [accepted] PHST- 2022/11/13 06:00 [pubmed] PHST- 2023/01/18 06:00 [medline] PHST- 2022/11/12 19:38 [entrez] AID - S1542-0124(22)00094-5 [pii] AID - 10.1016/j.jtos.2022.11.002 [doi] PST - ppublish SO - Ocul Surf. 2023 Jan;27:48-53. doi: 10.1016/j.jtos.2022.11.002. Epub 2022 Nov 9.