Benefits of simultaneous laparoscopic colorectal surgery and liver resection for colorectal cancer with synchronous liver metastases: Retrospective case-matched study

Laparoscopic surgery for colorectal cancer and liver tumors are accepted as alternative procedure to open surgery. However, few studies reported outcomes of simultaneous laparoscopic surgery of these two procedures. The aim of this study was to compare short-term outcomes between laparoscopic and open approach. Between June 2010 to December 2019, simultaneous laparoscopic cases were retrospectively matched (1:2) to open cases. Peri-operative and short-term outcomes were compared between both groups. Twelve patients in laparoscopic group were matched to 24 patients in open group according to age, gender, body mass index, american society of anesthesiologists physical status, preoperative laboratory data, number and size of liver metastases and extent of colorectal and liver resection, Most patients in each group had left-sided colon or rectal cancer and underwent wedge liver resection. The mean number of liver metastases was 1.3 vs 1.5 and size of liver metastases was 2.2 ± 1.4 vs 2.7 ± 1.1 cm in laparoscopic compared to open group. Estimated blood loss and length of hospital stay were significantly lower in laparoscopic group. However, operative time was significantly longer in laparoscopic group. Peri-operative complication was not significant difference between both groups and there was no mortality. Simultaneous laparoscopic colorectal surgery and minor liver resection is feasible and safe. Laparoscopic approach has better peri-operative outcome in term of shorter length of hospital stay compared to open approach. •Outcome of simultaneous laparoscopic surgery for colorectal cancer with synchronous liver metastases remains controversy.•This study showed comparable peri-operative outcomes of simultaneous laparoscopic compared to open surgery.•Simultaneous laparoscopic surgery had shorter length of hospital stay and less operative blood loss.