Xenon anesthesia for liver transplant surgery: a report of four cases.

It is well established that patients presenting for orthotopic liver transplantation pose challenging surgical and anesthesiological problems. Intraoperatively, severe hemodynamic instability due to profuse bleeding and acute cardiomyopathy during reperfusion are major concerns. In addition, ischemia-reperfusion injury can compromise postoperative graft function. Xenon, with its potential to maintain hemodynamic stability, preserve cardiac function, and protect the liver graft of the recipient, seems to be a promising anesthetic agent for liver transplant surgery. To date, xenon has not been used as an anesthetic in liver transplantations. We therefore have reported our initial experience with four patients who underwent orthotopic deceased donor liver transplantation under xenon anesthesia. Although all patients had advanced liver disease and experienced significant intraoperative bleeding, their intraoperative courses, including reperfusion, under xenon anesthesia were remarkably stable. The patients required only moderate, temporary catecholamine support, which was withdrawn at the end of the surgery. Xenon anesthesia for liver transplant procedures proved to be feasible. Immediate postoperative organ function was satisfactory in all patients.