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Updated: Apr 16, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
Published on: October 29, 2014
Oversewing staple lines to prevent anastomotic complications in primary ileocolic resections for Crohn's disease
Maria Widmar1, Dustin R Cummings, Emily Steinhagen
1Department of Surgery, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, Box 1259, New York, NY, 10029, USA, maria.widmar@mssm.edu.
Background:
Oversewing staple lines may be a novel way to reduce anastomotic complications after primary ileocolic resections for Crohn's disease (CD).
Study Design:
This is a single-institution, non-concurrent cohort study of CD patients undergoing primary ileocolic resections (ICR) with stapled anastomoses from 2007 to 2013. Demographic and clinical characteristics were collected. Propensity scores were calculated for oversewing versus not. Postoperative outcomes within 30 days of surgery were collected. Anastomotic leak, intra-abdominal abscess, small bowel obstruction, and anastomotic bleed were considered major anastomotic complications (MACs). Multivariate analysis controlling for inverse probability weights was used to identify predictors of MACs.
Results:
A total of 269 patients were included, of which 120 had undergone oversewing (OS). After controlling for propensity scores, not oversewing (NOS) and OS groups were similar in all preoperative characteristics with the exception of more laparoscopic resections and intracorporeal anastomoses in the NOS group. On univariate analysis, OS was protective against MACs (odds ratio (OR) 0.29, p < 0.01). In a multivariable model using inverse propensity weights and controlling for laparoscopic and intracorporeal approaches, oversewing remained a significant predictor of reduced MACs (OR 0.37, p < 0.001), while intracorporeal anastomoses increased their likelihood (OR 3.7, p < 0.001).
Conclusions:
After controlling for clinical and surgical factors, oversewing staple lines in primary ICRs for CD is correlated with reduced MACs.
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