Clinical advantages of single port laparoscopic hepatectomy.

AIM To evaluate the clinical advantages of single-port laparoscopic hepatectomy (SPLH) compare to multiport laparoscopic hepatectomy (MPLH). METHODS We retrospectively reviewed the medical records of 246 patients who underwent laparoscopic liver resection between January 2008 and December 2015 at our hospital. We divided the surgical technique into two groups; SPLH and MPLH. We performed laparoscopic liver resection for both benign and malignant disease. Major hepatectomy such as right and left hepatectomy was also done with sufficient disease-free margin. The operative time, the volume of blood loss, transfusion rate, and the conversion rate to MPLH or open surgery was evaluated. The post-operative parameters included the meal start date after operation, the number of postoperative days spent in the hospital, and surgical complications was also evaluated. RESULTS Of the 246 patients, 155 patients underwent SPLH and 91 patients underwent MPLH. Conversion rate was 22.6% in SPLH and 19.8% in MPLH (p = 0.358). We performed major hepatectomy, which was defined as resection of more than 2 sections, in 13.5% of patients in the SPLH group and in 13.3% of patients in the MPLH group (p = 0.962). Mean operative time was 136.9 +/- 89.2 min in the SPLH group and 231.2 +/- 149.7 min in the MPLH group (p < 0.001). The amount of blood loss was 385.1 +/- 409.3 mL in the SPLH group and 559.9 +/- 624.9 mL in the MPLH group (p = 0.016). The safety resection margin did not show a significant difference (0.84 +/- 0.84 cm in SPLH vs 1.04 +/- 1.22 cm in MPLH, p = 0.704). Enteral feeding was started earlier in the SPLH group (1.06 +/- 0.27 d after operation) than in the MPLH group (1.63 +/- 1.27 d) (p < 0.001). The mean hospital stay after operation was non-significantly shorter in the SPLH group than in the MPLH group (7.82 +/- 2.79 d vs 7.97 +/- 3.69 d, p = 0.744). The complication rate was not significantly different (p = 0.397) and there was no major perioperative complication or mortality case in both groups. CONCLUSION Single-port laparoscopic liver surgery seems to be a feasible approach for various kinds of liver diseases.