The Role of Bowel Preparation in Colorectal Surgery: Results of the 2012-2015 ACS-NSQIP Data

Aaron L Klinger1, Heather Green1, Dominique J Monlezun2

  • 1Department of Colon and Rectal Surgery, Ochsner Medical Center, New Orleans, LA and Ochsner Clinic School, University of Queensland School of Medicine, Brisbane, Queensland, Australia.

Annals of Surgery
|October 25, 2017
PubMed
Abstract

Insights

Combined mechanical and oral antibiotic bowel preparation significantly reduces infectious complications in colorectal surgery. This dual approach is recommended for elective procedures to lower risks of surgical site infections and anastomotic leaks.

Area of Science:

  • Colorectal surgery
  • Surgical infection prevention
  • Gastrointestinal surgery

Background:

  • Mechanical bowel preparation (MBP) and oral antibiotic bowel preparation (ABP) are used for colorectal resections, but their efficacy is debated.
  • Recent literature questions the benefit of MBP alone in reducing infection rates.
  • The use of ABP has a long history but remains controversial.

Purpose of the Study:

  • To evaluate the infectious complication rates associated with combined mechanical and oral antibiotic bowel preparation versus other preparation methods.
  • To determine the benefits of dual bowel preparation in elective colorectal surgery.

Main Methods:

  • Analysis of 27,804 patients from the 2012-2015 American College of Surgeons National Surgical Quality Improvement Program cohorts.
  • Utilized doubly robust propensity score-adjusted multivariable regression to assess complications.
  • Compared outcomes across four groups: no preparation, MBP only, ABP only, and combined MBP/ABP.

Main Results:

  • Combined MBP/ABP was associated with significantly lower rates of surgical site infection (SSI), organ space infection, wound dehiscence, and anastomotic leak compared to no preparation.
  • Dual preparation showed a lower SSI rate than ABP alone.
  • MBP monotherapy did not demonstrate significant benefits for infectious complications.

Conclusions:

  • Combined mechanical and oral antibiotic bowel preparation significantly reduces infectious complications, including SSI, organ space infection, wound dehiscence, and anastomotic leak.
  • This dual preparation strategy lowers infectious complication rates without increasing the risk of Clostridium difficile infection.
  • The study recommends combined MBP/ABP for elective colon and rectal resections when feasible.

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