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Rethinking sterilization practices: evidence for event-related outdating
Joan Webster1, Wendy Lloyd, Ping Ho
1Royal Brisbane and Royal Women's Hospitals, Herston, Queensland, Australia.
Infection Control and Hospital Epidemiology
|August 28, 2003
Summary
Event-related outdating effectively maintains sterility for hospital-prepared items. Microbiological testing over two years confirmed all items remained sterile, demonstrating the method
Area of Science:
- Healthcare quality improvement
- Microbiology
- Sterilization processes
Background:
- Hospital-prepared sterilized items require effective expiration dating.
- Traditional time-based expiration dating may lead to premature discarding of sterile supplies.
- Event-related outdating offers a potential alternative to time-based methods.
Purpose of the Study:
- To evaluate the effectiveness of event-related outdating for hospital-prepared sterilized items.
- To assess the impact of event-related outdating on maintaining item sterility in clinical settings.
Main Methods:
- A prospective study was conducted over a 2-year period.
- Hospital-prepared sterilized items (n=152) were subjected to event-related outdating protocols.
- Items were stored in wards, with samples retrieved quarterly for microbiological testing.
Main Results:
- All tested items (n=152) remained sterile throughout the 2-year study period.
- No microbial contamination was detected in any of the retrieved samples.
- The event-related outdating strategy proved effective in preserving item sterility.
Conclusions:
- Event-related outdating is a viable and effective strategy for managing sterile hospital supplies.
- This approach ensures the sterility of items without relying on arbitrary time limits.
- Implementing event-related outdating can potentially reduce waste and maintain high standards of patient safety.