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Bacteriologic contamination in an air-fluidized bed.

A Scheidt, L M Drusin

    The Journal of Trauma
    |March 1, 1983
    PubMed
    Summary
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    Air-fluidized beds pose a bacteriologic hazard for severely burned patients. Despite cleaning, harmful bacteria like Staphylococcus aureus were recovered, necessitating new disinfection protocols for patient safety.

    Area of Science:

    • Infection control
    • Biomedical engineering
    • Patient safety

    Background:

    • Air-fluidized beds (AFBs) are used for severe burn patients to promote healing.
    • Potential for AFB contamination poses a risk to immunocompromised patients.
    • Standard cleaning protocols may not eliminate all bacterial contaminants.

    Purpose of the Study:

    • To assess the bacteriologic hazard of AFBs in heavily infected burn patients.
    • To identify bacteria present in AFBs despite manufacturer's cleaning protocols.
    • To develop effective disinfection strategies for AFB filter sheets.

    Main Methods:

    • Bacterial cultures were performed on AFB filter sheets and solid materials.
    • Samples were collected after patients used the beds and after standard cleaning.

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  • Manufacturer's protocol for bed and filter sheet cleaning was followed.

    • Main Results:

    • Multiple bacterial species, including Staphylococcus aureus, Staphylococcus epidermidis, Streptococcus fecalis, Escherichia coli, and Serratia marcescens, were recovered from AFBs.
    • Bacteria persisted even after adherence to the manufacturer's cleaning procedures.
    • The AFB was deemed a potential bacteriologic hazard.

    Conclusions:

    • AFBs can harbor significant bacterial contamination, posing a risk to severely burned patients.
    • Standard cleaning methods are insufficient to eliminate all pathogens.
    • Effective disinfection of filter sheets and regular removal of solid materials are crucial for AFB safety.