PMID- 36581507 OWN - NLM STAT- MEDLINE DCOM- 20230303 LR - 20240302 IS - 1879-1166 (Electronic) IS - 0198-8859 (Print) IS - 0198-8859 (Linking) VI - 84 IP - 3 DP - 2023 Mar TI - Virtual crossmatch for deceased donor kidney transplantation in the United States: A survey of histocompatibility lab directors and transplant surgeons. PG - 214-223 LID - S0198-8859(22)00250-6 [pii] LID - 10.1016/j.humimm.2022.12.001 [doi] AB - Virtual crossmatch (VXM) is used as an alternative to or in conjunction with a cell-based physical crossmatch (PXM) for assessing HLA (human leukocyte antigen) compatibility prior to deceased donor kidney transplantation (DDKT). Data on practice patterns and perceptions regarding VXM use in the US are limited. We performed a survey of US HLA directors and transplant surgeons regarding HLA testing and crossmatch strategies. 53 (56 %) HLA directors and 68 surgeons (representing approximately 23 % of US transplant centers) completed the survey. Both groups agreed that VXM could reduce cold ischemia time (CIT), costs and improve allocation efficiency. VXM use increased following the 2021 kidney allocation change. Reducing CIT was the primary reason for favoring VXM over PXM. Preference for VXM reduced as candidates' panel reactive antibodies increased. Regulations, program policies and limitations of HLA technology were cited as important reasons for preferring PXM over VXM. Surgeons reported similar perceptions, but findings are limited by the low response rate. Finally, half the labs reported lacking specific protocols for VXM use. In conclusion, improved HLA technology and protocols along with changes to institutional procedures and policy regulations are needed for safer expansion of VXM in DDKT. CI - Copyright (c) 2022 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved. FAU - Puttarajappa, Chethan M AU - Puttarajappa CM AD - Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, USA. Electronic address: puttarajappacm@upmc.edu. FAU - Tevar, Amit D AU - Tevar AD AD - Department of Surgery, University of Pittsburgh, Pittsburgh, USA. FAU - Hoffman, William AU - Hoffman W AD - Transplant Nephrology, UPMC Pinnacle, Harrisburg, PA, USA. FAU - Degenholtz, Howard AU - Degenholtz H AD - Department of Health Policy and Management, University of Pittsburgh, Pittsburgh, USA. FAU - Schinstock, Carrie A AU - Schinstock CA AD - Division of Nephrology, Mayo Clinic, Rochester, USA. FAU - Gunabushanam, Vikraman AU - Gunabushanam V AD - Department of Surgery, University of Pittsburgh, Pittsburgh, USA. FAU - Zeevi, Adriana AU - Zeevi A AD - Department of Pathology, University of Pittsburgh, Pittsburgh, USA. FAU - Xu, Qingyong AU - Xu Q AD - Department of Pathology, University of Pittsburgh, Pittsburgh, USA. FAU - Hariharan, Sundaram AU - Hariharan S AD - Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, USA. LA - eng GR - K08 DK119576/DK/NIDDK NIH HHS/United States PT - Journal Article DEP - 20221227 PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (HLA Antigens) SB - IM MH - Humans MH - United States MH - *Kidney Transplantation/methods MH - Blood Grouping and Crossmatching MH - Histocompatibility Testing/methods MH - Kidney MH - HLA Antigens MH - Histocompatibility MH - Graft Rejection PMC - PMC9991979 MID - NIHMS1861217 OTO - NOTNLM OT - Deceased donor OT - Histocompatibility OT - Kidney transplantation OT - Survey OT - Virtual crossmatch COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/12/30 06:00 MHDA- 2023/03/04 06:00 PMCR- 2024/03/01 CRDT- 2022/12/29 21:54 PHST- 2022/09/02 00:00 [received] PHST- 2022/11/22 00:00 [revised] PHST- 2022/12/20 00:00 [accepted] PHST- 2022/12/30 06:00 [pubmed] PHST- 2023/03/04 06:00 [medline] PHST- 2022/12/29 21:54 [entrez] PHST- 2024/03/01 00:00 [pmc-release] AID - S0198-8859(22)00250-6 [pii] AID - 10.1016/j.humimm.2022.12.001 [doi] PST - ppublish SO - Hum Immunol. 2023 Mar;84(3):214-223. doi: 10.1016/j.humimm.2022.12.001. Epub 2022 Dec 27.