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Updated: Jun 24, 2026

The C-seal: A Biofragmentable Drain Protecting the Stapled Colorectal Anastomosis from Leakage
Published on: November 4, 2010
After-hours colorectal surgery: a risk factor for anastomotic leakage
Niels Komen1, Jan-Willem Dijk, Zarina Lalmahomed
1Department of Surgery, ZNA Middelheim, Antwerp, Belgium. nielskomen@hotmail.com
Purpose:
This study aims to increase knowledge of colorectal anastomotic leakage by performing an incidence study and risk factor analysis with new potential risk factors in a Dutch tertiary referral center.
Methods:
All patients whom received a primary colorectal anastomosis between 1997 and 2007 were selected by means of operation codes. Patient records were studied for population description and risk factor analysis.
Results:
In total 739 patients were included. Anastomotic leakage (AL) occurred in 64 (8.7%) patients of whom nine (14.1%) died. Median interval between operation and diagnosis was 8 days. The risk for AL was higher as the anastomoses were constructed more distally (p = 0.019). Univariate analysis showed duration of surgery (p = 0.038), BMI (p = 0.001), time of surgery (p = 0.029), prophylactic drainage (p = 0.006) and time under anesthesia (p = 0.012) to be associated to AL. Multivariate analysis showed BMI greater than 30 kg/m(2) (p = 0.006; OR 2.6 CI 1.3-5.2) and "after hours" construction of an anastomosis (p = 0.030; OR 2.2 CI 1.1-4.5) to be independent risk factors.
Conclusion:
BMI greater than 30 kg/m(2) and "after hours" construction of an anastomosis were independent risk factors for colorectal anastomotic leakage.
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