Reprocessing flexible gastrointestinal endoscopes after a period of disuse: is it necessary?

Abstract:

BACKGROUND:Gastrointestinal endoscopy is an integral tool in the evaluation and management of many gastrointestinal and hepatobiliary conditions. Although rare, media reports of infectious complications following gastrointestinal endoscopy persist in this new millennium. With only limited data available, society guidelines continue to suggest that endoscopes undergo a reprocessing cycle before the first patient of the day. This preliminary study aimed to assess the microbiological stability of gastrointestinal endoscopes after high-level disinfection. METHODS:In this multiphase study, four endoscopic retrograde cholangiopancreatography (ERCP) scopes and three colonoscopes were evaluated. In phase 1, endoscopes were assayed after initial high-level disinfection and daily for a period of 2 weeks. In phase 2, this procedure was repeated to confirm phase 1 results. In phase 3, endoscopes were assayed after high-level disinfection and again following a 7-day storage period. RESULTS:In phase 1, 6 of 70 (8.6 %) assays were positive. This involved 4 of 7 (57 %) endoscopes (2 colonoscopes and 2 ERCP scopes) and was limited to the first 5 days of the study. No cultures were positive in phase 2. In phase 3, one endoscope had a positive culture. Positive cultures grew only STAPHYLOCOCCUS EPIDERMIDIS, a low-virulence skin organism. DISCUSSION:With proper disinfection and storage, it appears that reprocessing of gastrointestinal endoscopes is unnecessary after periods of disuse of at least 7 days and possibly up to 2 weeks. Despite recent media reports of infectious complications, society guidelines that recommend more frequent reprocessing seem to lack scientific merit and need to be revisited.

journal_name

Endoscopy

journal_title

Endoscopy

authors

Vergis AS,Thomson D,Pieroni P,Dhalla S

doi

10.1055/s-2007-966644

subject

Has Abstract

pub_date

2007-08-01 00:00:00

pages

737-9

issue

8

eissn

0013-726X

issn

1438-8812

journal_volume

39

pub_type

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