Impact of duodenoscope reprocessing factors on duodenoscope contamination: a retrospective observational study.

Background: Despite adherence to reprocessing protocols, duodenoscopes frequently remain contaminated, highlighting significant knowledge gaps in reprocessing efficiency.

Aim: To identify risk factors in duodenoscope reprocessing procedures affecting contamination rates.

Methods: Cultures from Pentax ED34-i10T2 duodenoscopes collected between February 2022 and December 2023 were included.

Contaminated duodenoscopes in ERCP: sensitivity of detection and risk of underdetection.

Background And Aims: Periodic duodenoscope cultures are essential to timely detect contamination, but their sensitivity remains unknown. This study aims to determine the sensitivity of duodenoscope cultures and to estimate the prevalence of contaminated duodenoscope use.

Methods: We combined duodenoscope microbiologic surveillance data from March 2015 to June 2022 with usage data to evaluate patient exposure to duodenoscopes contaminated with microorganisms of gut or oral origin (MGO).

A search strategy for detecting duodenoscope-associated infections: a retrospective observational study.

Background: Duodenoscope-associated infections (DAIs) are exogenous infections resulting from the use of contaminated duodenoscopes. Though numerous outbreaks of DAI have involved multidrug-resistant micro-organisms (MDROs), outbreaks involving non-MDROs are also likely to occur. Detection challenges arise as these infections often resolve before culture or because causative strains are not retained for comparison with duodenoscope strains.

Unveiling 8 years of duodenoscope contamination: insights from a retrospective analysis in a large tertiary care hospital.

Objective: Contaminated duodenoscopes caused several hospital outbreaks. Despite efforts to reduce contamination rates, 15% of patient-ready duodenoscopes are still contaminated with gastrointestinal microorganisms. This study aimed to provide an overview of duodenoscope contamination over time, identify risk factors and study the effects of implemented interventions.

Effect of a novel endoscope cleaning brush on duodenoscope contamination.

Background: Current duodenoscope reprocessing protocols are insufficient to prevent contamination and require adaptations to prevent endoscopy-associated infections (EAIs). This study aimed to investigate the effect of a new endoscope cleaning brush on the contamination rate of ready-to-use duodenoscopes.

Methods: This retrospective before-and-after intervention study collected duodenoscope surveillance culture results from March 2018 to June 2022.