Is there any differences in outcome of synchronous liver resection for colorectal metastases stratified by type of colorectal resection

Background: The optimal surgical strategy for treating colorectal cancer with synchronous liver metastases is controversial. We aimed to evaluate the outcomes of simultaneous colorectal cancer and liver metastases resection in a single center. Methods: The prospectively collected data of all cases with synchronous colorectal liver metastases received simultaneous resection with curative intent were analysed retrospectively. Results: Between January 2005 and October 2016, 114 patients underwent simultaneous resection of primary colorectal cancer and liver metastases. Tumor was localized in right side in 26 (22%), left side in 42 (37%) and rectal in 46 (41%) patients. Perioperative mortality was in 3 (2.6%) patients from the all cohort. Postoperative complications was observed in 32 (28%) patients and the majority of them (75%) were grade 1 to 3 according to Clavien-Dindo classification. Neither Perioperative mortality nor postoperative complications rates after simulatanous resection were different among the groups of right colon, left colon and rectal cancer (4%, 2.5% and 2% respectively, p; 0.89) and (17%, 33% and 34%respectively; p: 0.29)]. 5 year overall survival of the whole cohort was 54% and 3 years overall survival was 67 %. Conclusion: Simultaneous resection for primary colorectal cancer and liver metastases is a safe procedure, and can be carried out without excess morbidity in carefully selected patients; regardless of the location of the primary tumors and type of hepatectomy.