• Sunil V Patel, Sanjay V B Patel, Sreeram V Ramagopalan, and Michael C Ott.
• Division of General Surgery, The University of Western Ontario London, Ontario, ON, Canada. spatel2009@meds.uwo.ca
• Bmc Surg. 2013 May 24; 13: 14.

BackgroundPrevious meta-analyses have had conflicting conclusions regarding the differences between laparoscopic and open techniques in patients with Crohn's Disease. The objective of this meta-analysis was to compare outcomes in patients with Crohn's disease undergoing laparoscopic or open surgical resection.MethodsA literature search of EMBASE, MEDLINE, The Cochrane Central Register of Controlled Trials and the US National Institute of Health's Clinical Trials Registry was completed. Randomized clinical trials and non-randomized comparative studies were included if laparoscopic and open surgical resections were compared. Primary outcomes assessed included perioperative complications, recurrence requiring surgery, small bowel obstruction and incisional hernia.Results34 studies were included in the analysis, and represented 2,519 patients. Pooled analysis showed reduced perioperative complications in patients undergoing laparoscopic resection vs. open resection (Risk Ratio 0.71, 95% CI 0.58 - 0.86, P = 0.001). There was no evidence of a difference in the rate of surgical recurrence (Rate Ratio 0.78, 95% CI 0.54 - 1.11, P = 0.17) or small bowel obstruction (Rate Ratio 0.63, 95% CI 0.28 - 1.45, P = 0.28) between techniques. There was evidence of a decrease in incisional hernia following laparoscopic surgery (Rate Ratio 0.24, 95% CI 0.07 - 0.82, P = 0.02).ConclusionsThis is the largest review in this topic. The results of this analysis are based primarily on non-randomized studies and thus have significant limitations in regards to selection bias, confounding, lack of blinding and potential publication bias. Although we found evidence of decreased perioperative complications and incisional hernia in the laparoscopic group, further randomized controlled trials, with adequate follow up, are needed before strong recommendations can be made.

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