Laparoscopic assisted sigmoid resection for diverticular disease

Laparoscopic assisted sigmoid resection (LASR) has become a widely accepted procedure in colorectal surgery. In the last decade, numerous variations of surgical details have been established. In order to demonstrate a feasible technique, this video is provided. LASR is performed using four ports. The first port is inserted via open access by a minilaparotomy in the right paraumbilical region. Two ports are sited in the right lower abdomen, including one 12-mm port in the following incision above the pubic symphysis. The forth port is inserted in the left upper abdomen. The procedure starts with the removal of adhesions, the peritoneal incision is performed medially, and a medial to lateral approach to the mesocolon and the inferior mesenteric artery (IMA) is carried out. After identifying the left ureter, the IMA is either clipped or sealed about 1.5 to 2 cm from the origin in order to preserve the autonomous plexus. Then dissection is continued on Gerota's fascia. After lifting the rectosigmoid, dissection is continued in the avascular plane until the mesentery of the upper rectum is mobilized. Then the remaining lateral adhesions are dissected with preservation of the gonadal vessels and the left ureter. The distal resection line is always in the upper rectum, which is easily identified by the lack of tenia. After sealing the mesorectum, the rectum is dissected using a linear stapler. Thereafter, a minilaparotomy above the pubic symphysis is performed and a device for protection and retraction of the wound is inserted. Dissection of the mesosigmoid and the descending colon is carried out extracorporally. The anvil of a circular stapling device is inserted in the descending colon, which is then returned into the peritoneal cavity. Running sutures closes the incision, and the anastomosis is carried out laparoscopically in a "double stapling" technique. The video describes the efficacy and technical feasibility of laparoscopic surgery for diverticular disease and demonstrates its effect regarding perioperative morbidity and functional outcome.