Abstract
BackgroundHepatic dysfunction is a morbid complication of lung transplantation. Little is known about risk factors for postoperative hepatic dysfunction or its impact on survival after lung transplantation. MethodsThis retrospective analysis of 1406 adult lung transplant recipients was performed at the University of Pittsburgh Medical Center in Pittsburgh, Pennsylvania between January 1, 2007 and December 1, 2019. Patients were excluded for redo lung transplantation, concomitant cardiac surgery, or concurrent solid organ transplantation. Postoperative liver dysfunction was classified as either ischemic liver injury or nonischemic dysfunction (transaminitis, hyperbilirubinemia). ResultsAmong the 1155 primary lung transplant recipients included, postoperative hepatic dysfunction developed in 96 (8.3%) after lung transplantation. A history of liver disease was the greatest predictor of postoperative hepatic dysfunction (odds ratio, 6.19; CI, 2.13-17.4; P < .001). Patients with postoperative hepatic dysfunction had a greater need for intraoperative blood products (ischemic, 12 U [range, 6-21 U]; nonischemic, 10 U [range, 4-28 U]; vs none, 4 U [range, 1-12 U]; P < .001) and an increased need for postoperative circulatory support (ischemic, 16 [76%]; nonischemic, 25 [33%]; none, 117 [11%]; P < .001). Both ischemic liver injury and nonischemic dysfunction were associated with diminished 1-, 3-, and 5-year term survival (ischemic, 27.5%, 16.5%, and 0%, respectively; nonischemic, 60%, 49.6%, and 46.9%, respectively; none, 87.3%, 72.3%, and 59.5%, respectively; P < .001). ConclusionsHepatic dysfunction after lung transplantation is associated with significant morbidity and mortality. A history of liver disease was the best positive predictor for postoperative dysfunction. Additional studies are necessary to identify the best treatment algorithm to avoid hepatic dysfunction more effectively in the postoperative setting after lung transplantation.
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