Original Investigation

Portal-Venous Hypothermic Oxygenated Perfusion for Liver Transplant

JAMA Surgery 10.1001/jamasurg.2026.1604

May 27, 2026 at 11:00 AM EDT

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Does back-to-base portal-venous hypothermic oxygenated perfusion (HOPE) improve recipient outcomes compared with static cold storage alone?This randomized clinical trial included 219 adult recipients of liver transplants from both extended criteria brain-dead and circulatory-death donors at 15 US centers. HOPE resulted in reduced early allograft dysfunction compared with static cold storage alone; additionally, HOPE was associated with lower model for early allograft function score and shorter hospital stays.In this study, back-to-base portal-venous HOPE was associated with improved outcomes after liver transplant compared with static cold storage.

Corresponding Authors: Andrea Schlegel, MD, MBA, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195 (schlega4@ccf.org); David J. Reich, MD, Drexel University, 60 N 36th St, Philadelphia, PA 19104 (djr56@drexel.edu).

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