The cerebrovascular autoregulation (AR) is impaired in patients with hepatic encephalopathy.
Patients with the indication to liver transplantation mostly have mild to severe hepatic
encephalopathy. Transplantation should recover the encephalopathy. The aim of the study is to
investigate the AR during liver transplantation, with the questions if the AR is impaired at
the beginning of surgery and if there are changes in AR. For follow up the AR will be
measured at the first days after transplantation at the ICU.