Effect of automated ultraviolet C-emitting device on decontamination of hospital rooms with and without real-time observation of terminal room disinfection
| Autor: | Katie Penno, Madhuri M. Sopirala, Roman Jandarov |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Epidemiology Ultraviolet Rays Clinical settings 030501 epidemiology medicine.disease_cause Tertiary care 03 medical and health sciences 0302 clinical medicine Patients' Rooms medicine Hospital discharge Environmental Microbiology Humans 030212 general & internal medicine Terminal cleaning Decontamination business.industry Health Policy Public Health Environmental and Occupational Health Human decontamination Surgery Disinfection Household Work Infectious Diseases Terminal (electronics) 0305 other medical science business Nuclear medicine Ultraviolet |
| Zdroj: | American journal of infection control. 45(11) |
| ISSN: | 1527-3296 |
| Popis: | Background We studied the effectiveness of an ultraviolet C (UV-C) emitter in clinical settings and compared it with observed terminal disinfection. Methods We cultured 22 hospital discharge rooms at a tertiary care academic medical center. Phase 1 (unobserved terminal disinfection) included cultures of 11 high-touch environmental surfaces (HTSs) after terminal room disinfection (AD) and after the use of a UV-C–emitting device (AUV). Phase 2 (observed terminal disinfection) included cultures before terminal room disinfection (BD), AD, and AUV. Zero-inflated Poisson regression compared mean colony forming units (CFU) between the groups. Two-sample proportion tests identified significance of the observed differences in proportions of thoroughly cleaned HTSs (CFU P value was determined using the Bonferroni corrected threshold of α = .05/12 = .004. Results We obtained 594 samples. Risk of overall contamination was 0.48 times lower in the AUV group than in the AD group ( P 10 reduction. During phase 1, overall proportion of HTSs with P = .001). During phase 2, it increased in AD versus BD by 0.45 ( P P = .02). Conclusions Use of UV-C with standard cleaning significantly reduced microbial burden and improved the thoroughness of terminal disinfection. We found no further benefit to UV-C use if standard terminal disinfection was observed. |
| Databáze: | OpenAIRE |
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