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• W3085571763 abstract "BACKGROUND CONTEXT Though techniques for sterilizing surgical tools and supplies have steadily improved, current standards for operating room (OR) disinfection have become antiquated – providing continued convenience for pathogenic organisms and surgical site infections. Pulsed-xenon ultraviolet (PX-UV) disinfection is an opportunity for standardized, touch-free disinfection that may serve as a supplement to manual terminal cleaning. The combination of manual and PX-UV disinfection may provide the greatest reduction in OR bioburden, as measured by colony-forming units (CFUs), and frequency of site contamination. Here, the bioburden and site contamination of ORs following manual cleaning and PX-UV disinfection are explored. PURPOSE Determine impact of manual vs manual and PX-UV disinfection on CFUs in spine operating suites. STUDY DESIGN/SETTING N/A PATIENT SAMPLE N/A OUTCOME MEASURES N/A METHODS Fifteen ORs were sampled at three different time points – before terminal manual cleaning, after terminal manual cleaning, and after PX-UV. For each OR, at each time point, five high-touch surfaces were cultured using a Tryptone Soy Agar touch plate. A total of 225 samples were acquired. Samples were incubated for 24 hours and the number of colony-forming units reported. Distinct colonies were identified. Descriptive statistics and Rank Sum Testing with a Bonferroni correction were used to analyze results. RESULTS There was a 26.8% reduction of CFUs after manual cleaning (p>0.8014) and an 81.0% reduction of CFUs after PX-UV (p = 0.0086). Overall, the combination of manual and PX-UV disinfection resulted in an 86.10% reduction in CFUs (p = 0.004). The frequency of sites with CFUs prior to cleaning was 26.7%. There was no change in frequency of sites with CFUs after manual cleaning. Following PX-UV cleaning, the frequency of sites with CFUs reduced to 8.0%, which is a 70.0% reduction in sites with CFUs. Interestingly, the frequency of sites with an increase in CFUs after manual cleaning was 20.0%. There was no occurrence of an increase in CFUs after PX-UV disinfection. CONCLUSIONS The combination of PX-UV with manual cleaning yields the greatest reduction in OR bioburden as measured by CFUs. Manual cleaning alone resulted in a low reduction of CFUs and no change in the frequency of site contamination. Though some individual sites demonstrated elimination of CFUs following manual cleaning, there were a number of sites that had an increase in CFUs. This may represent cross contamination due to the inconsistent nature of manual terminal cleaning. The use of PX-UV disinfection resulted in a significant reduction in CFUs when compared to both the pre- and postmanual cleaning time points. PX-UV disinfection also yielded a reduction in the frequency of site contamination. This reduction in both bioburden and contaminated sites may contribute to a decreased risk of surgical site infection. FDA DEVICE/DRUG STATUS This abstract does not discuss or include any applicable devices or drugs." @default.
• W3085571763 created "2020-09-21" @default.
• W3085571763 creator A5034340041 @default.
• W3085571763 date "2020-09-01" @default.
• W3085571763 modified "2023-09-23" @default.
• W3085571763 title "196. Reducing bioburden in the operating room: manual cleaning and pulsed-xenon ultraviolet light disinfection produces significant reduction in colony forming units" @default.
• W3085571763 doi "https://doi.org/10.1016/j.spinee.2020.05.607" @default.
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