Simultaneous Hepatectomy as a Safe Approach for Synchronous Colorectal Liver Metastasis

Abstract

Objective: The optimal surgical strategy for treatment of colorectal cancer with synchronous liver metastasis remains controversial. This retrospective analysis compared both surgical and perioperative outcomes for patients receiving simultaneous hepatectomy and primary colorectal surgery, to those receiving hepatectomy alone for stage approach. Material and Methods: Between; June, 2013 and June, 2019, 111 patients underwent a hepatectomy for synchronous liver metastasis, from this 90 patients received stage resection (hepatectomy alone group), and 21 patients received simultaneous resection (simultaneous resection group) with primary colorectal cancer. Results:There were no significant differences in gender, age, primary tumor location, tumor size, number of liver metastasis, estimated blood loss, nor rate of blood transfusion. However, the hepatectomy alone group was significantly higher in the proportion of preoperative chemotherapy, compared to the simultaneous resection group (93.3 vs. 38.1%, respectively; p-value<0.001). Additionally, total operative time in the simultaneous resection group was significantly longer, when compared to the hepatectomy alone group (530 vs. 300 minutes, respectively; p-value<0.001). The length of hospital stay was also longer in the simultaneous resection group, compared to the hepatectomy alone group (10 days vs. 7 days, respectively; p-value<0.001). However, the rate of major postoperative complications were similar (14.3 vs. 10.0%; p value=0.525), respectively. Additionally, major hepatectomy and simultaneous resection were not significantly associated with any major complications. Conclusion: Simultaneous hepatectomy in synchronous colorectal liver metastasis is a safe approach, and does not increase the risks of major complications.