Initial experience with laparoscopic radical antegrade modular pancreatosplenectomy for left-sided pancreatic cancer in a single institution: technical aspects and oncological outcomes

Background: Laparoscopic surgery has been performed less frequently in the era of pancreatic cancer due to technical difficulties and concerns about oncological safety. Radical antegrade modular pancreatosplenectomy (RAMPS) is expected to be helpful to obtain a negative margin during radical lymph node dissection. We hypothesized that it would also be favorable as a laparoscopic application due to unique features. Methods: Fifteen laparoscopic RAMPS for well-selected patients with left-sided pancreatic cancer were performed from July 2011 to April 2016. Five trocars were usually used, and the operative procedures and range of dissection were similar to or the same as those of open RAMPS described by Strasberg. All medical records and follow-up data were reviewed and analyzed. Results: All patients had pancreatic ductal adenocarcinoma. Mean operative time was 219.3 +/- 53.8 min, and estimated blood loss was 250 +/- 70 ml. The length of postoperative hospital stay was 6.1 +/- 1.2 days, and postoperative morbidities developed in two patients (13.3%) with urinary retention. The median number of retrieved lymph nodes was 18.1 +/- 6.2 and all had negative margins. Median follow-up time was 46.0 months, and the 3-year disease free survival and overall survival rates were 56.3% and 74.1%, respectively. Conclusion: Our early experience with laparoscopic RAMPS achieved feasible perioperative results accompanied by acceptable survival outcomes. Laparoscopic RAMPS could be a safe and oncologically feasible procedure in wellselected patients with left-sided pancreatic cancer.