Risk factors for postoperative bile leakage: a retrospective single-center analysis of 411 hepatectomies.

Background: The primary focus of the study was to analyze the risk factors for bile leakage after hepatectomy for benign or malignant tumors.

Methods: A total of 411 patients who had undergone hepatectomy between December 2006 and December 2011 were retrospectively analyzed. The severity of bile leakage was graded according to the ISGLS classification.