All study centres will use either VitaSmart, Liver assist or Perlife devices for machine liver perfusion, with a pressure controlled hypothermic oxygenated liver perfusion through the portal vein (HOPE) or through the portal vein and the hepatic artery (DHOPE), targeting a flow rate between 200-250 ml/min at a pressure of 3 mmHg, and a perfusate temperature between 8-12°C. The perfusate consists of 3L re-circulating Belzer MPS® (Bridge to Life Ltd.) with an active oxygenation (70-110 kPa). The minimum perfusion duration is defined at 2 hours, while perfusion is generally continued until the recipient hepatectomy is completed. The perfusion will exclusively be performed in the recipient centre after initial cold storage and bench preparation of the liver for implantation.

The perfusion devices are routinely used in all participating centres (VitaSmart, Bridge to Life®, Liver Assist, XVIVO®, Perlife, Aferitica®).