A Single Duodenoscope, Damp Storage, and a Cluster of Resistant Infections
A community endoscopy center performs six ERCPs in one day using a single duodenoscope. The technician manually cleans the scope, runs it through the automated endoscope reprocessor, and hangs it in the storage cabinet while still damp because the drying cycle adds 10 minutes. A leak test was not documented for the last two cases. Two weeks later, two patients who had ERCP on the same day grow carbapenem-resistant Enterobacterales from blood cultures. The center has no duodenoscope surveillance culture program and no written policy for notifying exposed patients.
1. What is your immediate response to the suspected duodenoscope-linked infections?
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Stop using the duodenoscope immediately and quarantine it. Notify infection prevention, the endoscopy medical director, and public health authorities. Review reprocessing logs to identify every patient exposed since the last documented validated reprocessing, and retrieve the automated endoscope reprocessor records. Culture the scope and, if indicated, the AER; do not return the scope to service until it is culture-negative and reprocessing is validated.
Do not notify patients ad hoc before public health and infection prevention agree on the message; however, begin a line list of exposed patients and clinicians. Report to the manufacturer and regulatory body as required. The key is to stop further exposure first, then investigate.
2. Which reprocessing breaches are most likely, and what corrective actions do you mandate?
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The damp storage is a major breach: residual moisture promotes biofilm and bacterial growth, especially in the elevator channel of a duodenoscope. Skipping the drying cycle to save 10 minutes is unacceptable. Missing leak-test documentation suggests the scope may have been used with a damaged channel. A single high-volume duodenoscope with no surveillance culture program compounds the risk.
Mandate: complete manual cleaning with channel brushing at the bedside and again before high-level disinfection; leak test every procedure and document it; use the correct AER with compatible connectors; alcohol flush and forced-air drying before vertical storage; reprocess the scope if storage exceeds the manufacturer's limit; train and competency-assess staff; audit logs; start a duodenoscope surveillance culture program. Consider a second scope or reduced ERCP volume.
3. How do you communicate with exposed patients, and what documentation is required?
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Provide transparent, confidential notification after public health and infection prevention review. Explain what is known, the potential exposure, the symptoms to watch for, and how to arrange testing; do not speculate or assign blame. Offer a single point of contact and follow-up.
Document the exposure investigation, the list of patients, the notification method, test results, and corrective actions in a quality-improvement record. Notify the manufacturer and regulatory agency if required. In the patient's chart, document the disclosure and any testing ordered. The goal is to preserve trust while meeting reporting and safety obligations.