Effect of previous abdominal surgery on short-term outcomes following laparoscopic colorectal surgery

653 Background: The impact of previous abdominal surgeries on the need for conversion to open surgery and on short-term outcomes during/after laparoscopic colorectal surgery was retrospectively investigated. This retrospective cohort study was conducted from May 2004 through October 2012. This study was conducted at Tokushima University Hospital and Ehime Prefectural Central Hospital. Methods: A total of 145 consecutive patients who had undergone laparoscopic resection of the sigmoid colon and upper rectum were classified as not having previous abdominal surgery (NPAS group, n = 123) or as having previous abdominal surgery (PAS group, n = 22). Short-term outcomes were assessed between the two groups. Results: The population of previous abdominal surgery consisted of 6 appendectomy, 3 gastrectomy for gastric ulcer, 2 nephrectomy, 2 peritonitis and 11 others (2 duplication). There were no significant differences in age, gender, BMI, tumor location, tumor size, Stage, operating time, blood loss and number of lymph node harvest between the two groups. The conversion to open surgery was performed in 1 patient (4.5%) in the PAS group and 6 patients (4.9%) in the NPAS group. The intraoperative inadvertent enterotomy occurred in 1 patient in the NPAS group. There was no difference in postoperative morbility between the two groups. In the NPAS group, anastomotic leakage was observed in 3 cases. Ileus was observed in one case in the NPAS and none in the PAS. Postoperative hospital stay was 14 days in the PAS group and 16 days in the NPAS group. Conclusions: Short-term outcomes following laparoscopic surgery for sigmoid colon and upper rectal cancer with previous abdominal surgery are acceptable.