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Nosocomial infection due to enterococci attributed to a fluidized microsphere bed. The value of pyrolysis mass
R Freeman1, F K Gould, D W Ryan
1Department of Microbiology, Freeman Hospital, High Heaton, Newcastle Upon Tyne, UK.
Abstract:
The potential of fluidised microsphere beds as sources of nosocomial Enterococcal infection was investigated with the help of pyrolysis mass spectrometry. Isolates from clinical specimens collected from two patients who were nursed sequentially on a fluidized microsphere bed were compared with similar isolates cultured from the microspheres before and after decontamination. Pyrolysis mass spectrometry confirmed that nosocomial spread had indeed occurred and that the existing decontamination process was inadequate. Recommendations for improvements to this decontamination process appear to have prevented further cases.
Insights
Fluidized microsphere beds can spread Enterococcal infections in hospitals. Pyrolysis mass spectrometry revealed inadequate decontamination, leading to improved protocols that prevented further cases.
Area of Science:
- Healthcare-associated infections
- Microbiology
- Analytical Chemistry
Background:
- Fluidized microsphere beds are used in patient care.
- Enterococcal species are a common cause of hospital-acquired infections.
- Investigating the role of medical devices in pathogen transmission is crucial.
Observation:
- Enterococcal isolates from two patients were compared to isolates from the microsphere bed.
- The microsphere bed was sampled before and after decontamination.
- Pyrolysis mass spectrometry (PyMS) was used for isolate identification.
Findings:
- PyMS confirmed nosocomial Enterococcal infection spread from the fluidized microsphere bed.
- The existing decontamination procedure for the beds was found to be inadequate.
- The study identified a specific source of hospital-acquired Enterococcal infections.
Implications:
- Enhanced decontamination protocols for fluidized microsphere beds are necessary.
- Improved decontamination practices can reduce the incidence of hospital-acquired Enterococcal infections.
- This study highlights the importance of rigorous device disinfection in healthcare settings.