The Risk Of Surgery In Patients With Liver Disease 2
The results of retrospective largescale registry and cohort studies and small case series, substantiate the common perception that operating on a liver disease patient is risky. The preexisting physiological derangements of liver disease may be exacerbated by the trauma of surgery and its complications, which contributes strongly to the aforementioned surgical risks, especially but not exclusively in cirrhotics. The risks of operating on patients with non-cirrhotic liver disease are reviewed with particular emphasis on the poor outcomes in acute hepatitis—especially alcoholic hepatitis—severe fatty liver disease, and obstructive jaundice. The outcomes of a broad spectrum of surgical procedures in cirrhotics (abdominal, cardiothoracic, orthopedic, vascular, etc.) are reviewed, with particular reference to common predictors of survival and morbidity, such as the Child-Turcotte-Pugh (CTP) score/class and the model for end-stage liver disease (MELD) score. The concept is proposed that the height of portal pressure may be a predictive factor of surgical outcome, which derives from experience with hepatic resection and suggests that measurement of hepatic venous pressures may be worthwhile in selected cases. New, non-invasive estimates of liver function are presented. A simple practical pre-operative decision tree is provided. This review contains 5 figures, 3 tables and 91 references Keywords: cirrhosis, fatty liver, hepatic venous pressure gradient, hepatitis, model for end-stage liver disease, operative mortality, portal hypertension, Child-Turcotte-Pugh