Researchers used a five-point multisided sampling protocol to measure the microbial burden on objects inside and outside the OR. They performed surface sampling pre-and postdisinfection in between cases to assess the performance of manual-chemical disinfection and compared it to disinfection with the focused ultraviolet system, which was assessed pre- and postdisinfection before the first case and in between cases.
Researchers found manual-chemical disinfection reduced the active microbial burden on objects in between cases by 52.8 percent to 90.9 percent, while focused the ultraviolet system reduced the active microbial burden by 92 percent to 97.7 percent before the first case and in between cases combined.
Additionally, the focused ultraviolet system reduced active microbial burden by 96.3 percent to 99.6 percent on objects outside the OR without chemical disinfection.
“[Focused multivector ultraviolet system] produced significant overall reductions of the microbial burden on patient care equipment in all study phases and independent of manual cleaning and chemical disinfection,” study authors concluded.
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