Postoperative complications of repeat hepatectomy for liver metastasis from colorectal carcinoma

BACKGROUND/AIMS: When a repeat hepatectomy is possible, it is the most effective treatment modality for recurrent colorectal liver metastasis. The aim of this study was to evaluate the surgical risks of repeat hepatectomy for liver metastasis from colorectal carcinoma. METHODOLOGY: Between 1986 and 1996, 60 patients with hepatic metastasis from colorectal carcinoma underwent surgery in the Department of Surgery I, Oita Medical University. Ten of them underwent a repeat hepatectomy. The cases of these 10 patients were studied retrospectively; in particular, postoperative complications and intraoperative blood loss were compared between the initial and second operation. RESULTS: During the second surgery, recurrence was detected adjacent to the hepatic stump in 9 of the 10 patients. During the initial surgery, 6 underwent non-anatomic resections, and 4 had anatomic resection, including 1 extended lobectomy, 1 lobectomy, and 2 segmentectomies. For the second surgery, 3 had anatomic resections, including 2 lobectomies, and 1 segmentectomy, and 7 underwent non-anatomic resections. There were no mortalities during the initial or second operation. There was no morbidity following the initial surgeries and 7 postoperative complications (intraabdominal abscess, 4 cases; biloma, 3 cases) following the second surgeries. Mean blood loss during the second operation (1044 mL) was significantly greater than during the initial operation (561 mL). CONCLUSIONS: The present results show that repeat hepatectomy for recurrent liver metastasis from colorectal carcinoma resulted in significantly greater intraoperative blood loss and postoperative complications than those of the initial surgeries. The blood loss and complications in the second operation, the one for the recurrence, were directly associated with the fact that the recurrence was so close to the hepatic stump. Since the resection line in the second surgery was adjacent to the hepatic hilus, resection of the lesion caused much more injury to the main bile duct and main portal vein than that caused by the.