Outcomes of laparoscopic colorectal surgery in patients of previous abdominal surgery: a systemic review and meta-analysis.

Previous abdominal surgery (PAS) is an important factor for postoperative adhesion. It is considered to be the most common complication of gastrointestinal and pelvic surgery. Both an Internet based and a manual search were used to acquire relevant studies about this topic. Parameters have been compared such as, Operating time in PAS versus Non PAS, Blood loss, Perioperative blood transfusion, Conversion to open, Anastomotic leakage and overall complications. Results of this study suggest that laparoscopy is too safe and effective in the treatment of colorectal disease for patients with previous abdominal surgery as it is for those without surgical backgrounds. However sufficient large-volume study is necessary to validate the long-term outcomes in previous abdominal surgical patients.