Laparoscopic parenchymal preserving hepatic resections in semiprone position for tumors located in the posterosuperior segments.

INTRODUCTION: All patients who underwent laparoscopic liver resections in the posterosuperior segments (LPSS) at our center were positioned in semiprone since August 2011. The aims of this study were to assess differences in perioperative outcomes between laparoscopic left lateral sectionectomies (LLLS) performed in supine position and LPSS in semiprone position.

METHODS: We reviewed our prospectively collected database of all liver resections performed between January 2012 and January 2015. LLLS and LPSS were compared with respect to demographics and perioperative outcomes.

RESULTS: Forty-five patients underwent LLLS (n = 20) or LPSS (n = 25). There were no differences in patient demographics or tumor diameter (p = 0.946). There were no conversions. Pringle maneuver was not used in both groups. There was no difference in peroperative central venous pressure (p = 0.511). The median operative time in the LLLS group was 100 min (60-260) and 160 min (95-270) in the LPSS group (p = 0.002) with median intraoperative blood loss in the LLLS group of 50 ml (0-550) versus a larger 150 ml (50-700) (p = 0.010) for patients receiving LPSS. No patients required transfusion. Intraoperative and postoperative complication rates were similar in both groups. Median hospital stay was 6 days in both groups (p = 0.554).

CONCLUSION: LPSS in semiprone can be performed with similar clinical outcomes as a minor laparoscopic liver resection except for longer operative time and larger intraoperative blood loss without the need for transfusion.