Evid Based Nurs 8:85 doi:10.1136/ebn.8.3.85
  • Treatment

Review: bowel preparation before elective colorectal surgery increases anastomotic leakage more than no preparation

Mechanical bowel preparation v no preparation before elective colorectal surgery*

Outcomes at 7–60 days Mechanical bowel preparation No preparation RRI (95% CI) NNH (CI)
*Abbreviations defined in glossary; RRI, NNH, and CI calculated from odds ratio reported in article (fixed effects model).
Anastomotic leakage 5.6% 3.2% 71% (5 to 173) 44 (18 to 638)

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