Electrothermal bipolar vessel sealing system vs. harmonic scalpel in colorectal laparoscopic surgery: a prospective, randomized study.

PURPOSE:This study was designed to compare the efficacy and safety of laparoscopic colorectal surgery performed with the aid of LigaSure® vessel-sealing system or Ultracision®.METHODS:Patients eligible for elective laparoscopic right or left hemicolectomy or anterior resection of rectum were randoml