Impact of Hydrogen Peroxide Vapor Room Decontamination onClostridium difficileEnvironmental Contamination and Transmission in a Healthcare Setting

Infection Control and Hospital Epidemiology - Tập 29 Số 8 - Trang 723-729 - 2008
John M. Boyce1, Nancy L. Havill, Jonathan A. Otter, L. Clifford McDonald, Nicholas M. Adams, Timothea Cooper, Angela Thompson, L S Wiggs, George Killgore, Allison Tauman, Judith Noble‐Wang
1Hospital of St. Raphael, Yale University School of Medicine, New Haven, Connecticut 06511, USA. [email protected]

Tóm tắt

Objective.To determine whether hydrogen peroxide vapor (HPV) decontamination can reduce environmental contamination with and nosocomial transmission ofClostridium difficile.Design.A prospective before-after intervention study.Setting.A hospital affected by an epidemic strain ofC. difficile.Intervention.Intensive HPV decontamination of 5 high-incidence wards followed by hospital-wide decontamination of rooms vacated by patients withC. difficile-associated disease (CDAD). The preintervention period was June 2004 through March 2005, and the intervention period was June 2005 through March 2006.Results.Eleven (25.6%) of 43 cultures of samples collected by sponge from surfaces before HPV decontamination yieldedC. difficile,compared with 0 of 37 cultures of samples obtained after HPV decontamination (P< .001). On 5 high-incidence wards, the incidence of nosocomial CDAD was significantly lower during the intervention period than during the preintervention period (1.28 vs 2.28 cases per 1,000 patient-days;P= .047). The hospital-wide CDAD incidence was lower during the intervention period than during the preintervention period (0.84 vs 1.36 cases per 1,000 patient-days;P= .26). In an analysis limited to months in which the epidemic strain was present during both the preintervention and the intervention periods, CDAD incidence was significandy lower during the intervention period than during the preintervention period (0.88 vs 1.89 cases per 1,000 patient-days;P= .047).Conclusions.HPV decontamination was efficacious in eradicating C.difficilefrom contaminated surfaces. Further studies of the impact of HPV decontamination on nosocomial transmission ofC. difficileare warranted.

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Infection Control and Hospital Epidemiology

Tập 29 Số 8

723-729

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