[Robot-assisted vs laparoscopic gastric bypass : First experiences with the DaVinci system in bariatric surgery].

Conventional laparoscopy is the gold standard in bariatric surgery. Internationally, robot-assisted surgery is gaining in importance. Up to now there are only few reports from Germany on the use of the system in bariatric surgery. Since January 2017 we have been performing robot-assisted gastric bypass surgery. It remains unclear whether the use of the robotic system has advantages over the well-established laparoscopic technique. Within a period from January to early August 2017 a total of 53 gastric bypass operations were performed. Of these 16 proximal redo Roux-en-Y gastric bypass operations were performed with the DaVinci Si system versus 29 laparoscopic procedures. A retrospective analysis of the perioperative course was carried out. Body weight, body mass index (BMI), Edmonton obesity staging system (EOSS) and American Society of Anesthesiologists (ASA) classification did not show significant differences. There were also no significant differences in terms of estimated blood loss, intraoperative complications, duration of surgery, postoperative inflammatory parameters and weight loss. There was no mortality and no need for revisional surgery in either group. After laparoscopic surgery there was a delayed occurrence of a leak of the gastrojejunostomy followed by readmission and endoscopic negative pressure wound therapy. The results show that the proximal Roux-en-Y gastric bypass can be performed safely and efficiently using the DaVinci surgical system. Significant differences to the conventional laparoscopic procedure were not found. Larger randomized controlled trials are needed to define the role of the DaVinci system in bariatric surgery.