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Related Experiment Videos

Microbiologic environment of the conventional operating room.

R H Fitzgerald

    Archives of Surgery (Chicago, Ill. : 1960)
    |July 1, 1979
    PubMed
    Summary

    Preventing surgical wound contamination involves controlling operating room (OR) bacterial levels. Strategies include limiting traffic, using protective gear, and assessing OR air exchange rates to reduce surgical site infections.

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    Area of Science:

    • Surgical Infection Prevention
    • Operating Room Hygiene
    • Bacterial Contamination Control

    Background:

    • Conventional operating rooms present several contamination risks, including the back table, suction receptacles, and inadequate air pressure differentials.
    • Surgical team members can contribute to wound contamination through bacterial fallout.

    Purpose of the Study:

    • To identify key areas of potential surgical wound contamination in conventional operating rooms.
    • To evaluate methods for reducing airborne bacterial contamination within the operating room environment.
    • To correlate operating room characteristics with postoperative wound sepsis rates.

    Main Methods:

    • Assessed contamination sources in conventional operating rooms.
    • Evaluated the impact of impermeable hoods and masks on bacterial contamination.
    • Analyzed the effect of personnel traffic, activity, and numbers on airborne bacteria.
    • Correlated postoperative wound sepsis rates with operating room age and procedure difficulty.

    Main Results:

    • Impermeable hoods with large masks significantly reduced instrument table and wound contamination from surgical team bacterial fallout.
    • Limiting traffic, controlling activity, and reducing personnel numbers lowered airborne bacterial contamination levels.
    • Older operating rooms showed higher rates of postoperative wound sepsis, especially for complex procedures or those performed late in the day.

    Conclusions:

    • Controlling airborne bacteria in operating rooms is crucial for preventing surgical wound contamination.
    • Operating room design and protocols, including air exchange rates and personnel management, impact infection rates.
    • Categorizing conventional operating rooms based on air exchange and bacterial contamination levels is recommended.

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