Is the pulsed xenon ultraviolet light no-touch disinfection system effective on methicillin-resistant Staphylococcus aureus in the absence of manual cleaning?
Is the pulsed xenon ultraviolet light no-touch disinfection system effective on methicillin-resistant Staphylococcus aureus in the absence of manual cleaning?
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DOI：
10.1016/j.ajic.2015.04.005
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发表时间：
2015-08-01
影响因子：
4.9
通讯作者：
Zeber, John E.
中科院分区：
文献类型：
--
作者：
Jinadatha, Chetan;Villamaria, Frank C.;Zeber, John E.
背景：耐甲氧西林金黄色葡萄球菌（MRSA）已被证明可以在环境表面上存活很长一段时间。医院病房中残留的MRSA环境污染会使未来的患者处于危险之中。手动消毒辅以脉冲氙紫外线（PX-UV）光消毒已被证明可以大大降低医院病房中的MRSA生物负载。然而，在没有手动disinfectation. Methods的PX-紫外线的效果还没有被evaluated.Methods：房间，以前被占领的MRSA阳性患者（目前的殖民或感染）被选为研究后立即出院。在PX-UV消毒之前和之后，在每个病房中对五个高接触表面进行采样。的PX-UV设备上的MRSA的浓度的有效性进行了评估，采用Wilcoxon符号秩检验的所有70个样本与MRSA在14个房间，以及由表面location.Results：最终分析包括14个房间。在PX-UV消毒之前，从5个高接触表面共分离出393个MRSA菌落。有100 MRSA菌落消毒后的PX-紫外线设备和整体减少是统计学上显着的（P <0.01）。结论：我们的研究结果表明，PX-紫外线灯有效地减少MRSA菌落计数在没有手动消毒。这些发现对于医院和环境服务主管来说非常重要，他们计划采用新技术作为常规手动消毒的辅助手段。爱思唯尔公司出版我代表感染控制和流行病学专业人员协会，
Background: Methicillin-resistant Staphylococcus aureus (MRSA) has been shown to survive on ambient surfaces for extended periods of time. Leftover MRSA environmental contamination in a hospital room places future patients at risk. Manual disinfection supplemented by pulsed xenon ultraviolet (PX-UV) light disinfection has been shown to greatly decrease the MRSA bioburden in hospital rooms. However, the effect of PX-UV in the absence of manual disinfection has not been evaluated.Methods: Rooms that were previously occupied by a MRSA-positive patient (current colonization or infection) were selected for the study immediately postdischarge. Five high-touch surfaces were sampled, before and after PX-UV disinfection, in each hospital room. The effectiveness of the PX-UV device on the concentration of MRSA was assessed employing a Wilcoxon signed-rank test for all 70 samples with MRSA in 14 rooms, as well as by surface location.Results: The final analysis included 14 rooms. Before PX-UV disinfection there were a total of 393 MRSA colonies isolated from the 5 high-touch surfaces. There were 100 MRSA colonies after disinfection by the PX-UV device and the overall reduction was statistically significant (P < .01).Conclusions: Our study results suggest that PX-UV light effectively reduces MRSA colony counts in the absence of manual disinfection. These findings are important for hospital and environmental services supervisors who plan to adapt new technologies as an adjunct to routine manual disinfection. Published by Elsevier Inc. on behalf of the Association for Professionals in Infection Control and Epidemiology, Inc.