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The effect of mechanical bowel preparation on anastomotic leaks in elective left-sided colorectal resections.
American Journal of Surgery 2015 November
BACKGROUND: Routine preoperative mechanical bowel preparation (MBP) for left-sided colorectal resections remains controversial. This study aims to evaluate the association between MBP and 30-day anastomotic leaks.
METHODS: A retrospective cohort study was conducted using data from the National Surgical Quality Improvement Program from 2011 to 2012. Multiple imputation was used for missing data, and a multivariable logistic regression was performed to adjust for clinically relevant variables. A propensity score-adjusted model was performed as a sensitivity analysis.
RESULTS: A total of 2,581 patients (57%) received preoperative MBP, whereas 1,935 (43%) did not. The 30-day anastomotic leak rate with and without preoperative MBP was 3.1% and 5.1%, respectively. After covariate adjustment, MBP omission was significantly associated with a 40% increased odds of 30-day anastomotic leaks (odds ratio 1.41, P = .04, 95% confidence interval 1.01 to 1.93).
CONCLUSIONS: MBP omission was associated with a higher rate of 30-day anastomotic leaks. A large, well-designed, randomized controlled trial is needed to further evaluate this relationship.
METHODS: A retrospective cohort study was conducted using data from the National Surgical Quality Improvement Program from 2011 to 2012. Multiple imputation was used for missing data, and a multivariable logistic regression was performed to adjust for clinically relevant variables. A propensity score-adjusted model was performed as a sensitivity analysis.
RESULTS: A total of 2,581 patients (57%) received preoperative MBP, whereas 1,935 (43%) did not. The 30-day anastomotic leak rate with and without preoperative MBP was 3.1% and 5.1%, respectively. After covariate adjustment, MBP omission was significantly associated with a 40% increased odds of 30-day anastomotic leaks (odds ratio 1.41, P = .04, 95% confidence interval 1.01 to 1.93).
CONCLUSIONS: MBP omission was associated with a higher rate of 30-day anastomotic leaks. A large, well-designed, randomized controlled trial is needed to further evaluate this relationship.
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