• J. Thorac. Cardiovasc. Surg. · Feb 2023

    Ex vivo lung evaluation of single donor lungs when the contralateral lung is rejected increases safe use.

    • Ben Dunne, Jiri Pozniak, Jose Luis Campo-Canaveral de la Cruz, Philippe Lemaitre, Jin Ma, Andrew F Pierre, Kazuhiro Yasufuku, Marc de Perrot, Laura L Donahoe, Thomas K Waddell, Shaf Keshavjee, Marcelo Cypel, and Jonathan C Yeung.
    • Toronto Lung Transplant Program, Toronto General Hospital, Toronto, Ontario, Canada.
    • J. Thorac. Cardiovasc. Surg. 2023 Feb 1; 165 (2): 526531.e1526-531.e1.

    ObjectiveThe decision to perform a single-lung transplant (SLT) when the contralateral donor lung is rejected is a challenging scenario. The introduction of ex vivo lung perfusion (EVLP) has improved donor lung assessment, and we hypothesize that it has improved SLT outcomes in this setting.MethodsA retrospective single-center review of all SLTs performed between 2000 and 2017 was performed in which the years 2000 to 2008 were considered the "pre-EVLP era" and 2009 to 2017 the "EVLP era." Recipients of SLT lungs when the contralateral lung was declined were classified into 3 groups: (1) Pre-EVLP era, (2a) EVLP era but EVLP not used, and (2b) EVLP era and EVLP used. The outcomes of interest were survival, time-to-extubation, and intensive care unit and hospital stay.ResultsAmong 1692 transplants between 2000 and 2017, 244 (14%) were SLT. SLT rate was similar between eras (pre-EVLP 16% vs EVLP 15%), but more SLTs were performed where the contralateral lung was declined in the EVLP era (pre-EVLP 32% vs EVLP 45%, P = .04). Lungs evaluated on EVLP had lower procurement partial pressure of oxygen and were more often from donation after cardiac death donors. Recipients were generally also sicker, with a greater proportion of rapidly deteriorating recipients. Despite this, outcomes were similar between eras with a trend towards lower 30-day mortality in the EVLP era.ConclusionsThe availability of EVLP allowed for better evaluation of marginal single lungs when the contralateral was declined. This has led to increased use rates with preserved outcomes despite use of more extended criteria organs.Copyright © 2022 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.

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