Assessing residual contamination and damage inside flexible endoscopes over time

Am J Infect Control. 2016 Dec 1;44(12):1675-1677. doi: 10.1016/j.ajic.2016.06.029. Epub 2016 Sep 7.


Researchers evaluated flexible endoscope damage and contamination levels at baseline and 2 months later. Postcleaning test results exceeded benchmarks for all gastroscopes and no colonoscopes. Microbial growth was found in samples from 47% of fully reprocessed endoscopes at baseline and 60% at follow-up. Borescope examinations identified scratches, discoloration, debris, and fluid inside endoscopes. Irregularities changed over time. Study evaluations allowed damaged and contaminated endoscopes to be identified and re-reprocessed or sent for repairs.

Keywords: Adenosine triphosphate; Colonoscope; Epidemiology; Gastroscope; Microbial cultures; Reprocessing.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colonoscopes / microbiology*
  • Equipment Contamination*
  • Gastroscopes / microbiology*
  • Humans
  • Time Factors