Surgical Endoscopy

, Volume 27, Issue 6, pp 1914–1922 | Cite as

Oral chlorhexidine and microbial contamination during endoscopy: possible implications for transgastric surgery. A randomized, clinical trial

  • Anders Meller Donatsky
  • Barbara Juliane Holzknecht
  • Magnus Arpi
  • Peter Vilmann
  • Søren Meisner
  • Lars N. Jørgensen
  • Jacob Rosenberg
Article

Abstract

Background

One of the biggest concerns associated with transgastric surgery is contamination and risk of intra-abdominal infection with microbes introduced from the access route. The purpose of this study was to evaluate the effect of oral decontamination with chlorhexidine on microbial contamination of the endoscope.

Methods

In a prospective, randomized, single-blinded, clinical trial the effect of chlorhexidine mouth rinse was evaluated. As a surrogate for the risk of intra-abdominal contamination during transgastric surgery, microbial contamination of the endoscope during upper endoscopy was examined. Patients referred to upper endoscopy were assessed for eligibility and randomized to either chlorhexidine or no mouth rinse. Culture samples were collected from gastric aspirates and endoscopes. The primary outcome measure was colony forming units (CFU) in the endoscope samples. Secondary outcome measures were species specific effect of chlorhexidine on micro-organisms with abscess forming capabilities and the effect of proton pump inhibitor (PPI) treatment on CFU.

Results

Chlorhexidine mouth rinse resulted in a significant reduction of CFU in the endoscope samples (p = 0.001). There was no species specific effect and micro-organisms with abscess forming capabilities were equally present. PPI treatment was associated with significantly higher CFU counts in both the gastric (p = 0.004) and endoscope samples (p = 0.049).

Conclusions

Chlorhexidine mouth rinse was effective in reducing microbial contamination of the endoscope, but micro-organisms with abscess forming capabilities were still present. PPI treatment significantly increased CFU and should be discontinued before transgastric surgery.

Keywords

Chlorhexidine Endoscopy Contamination Transgastric NOTES 

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Anders Meller Donatsky
    • 1
  • Barbara Juliane Holzknecht
    • 2
  • Magnus Arpi
    • 2
  • Peter Vilmann
    • 1
  • Søren Meisner
    • 3
  • Lars N. Jørgensen
    • 3
  • Jacob Rosenberg
    • 1
  1. 1.Department of SurgeryHerlev Hospital, University of CopenhagenHerlevDenmark
  2. 2.Department of Clinical MicrobiologyHerlev Hospital, University of CopenhagenHerlevDenmark
  3. 3.Department of SurgeryBispebjerg Hospital, University of CopenhagenHerlevDenmark

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