Armellino Donna, Goldstein Kristine, Thomas Linti, Walsh Thomas J, Petraitis Vidmantas
Infection Prevention, Northwell Health, Lake Success, NY.
Infection Prevention, Northern Westchester Hospital, Mount Kisco, NY.
Am J Infect Control. 2020 Feb;48(2):147-152. doi: 10.1016/j.ajic.2019.10.009. Epub 2019 Nov 30.
This non-randomized comparative observational study evaluated the performance of a standard manual-chemical disinfection process with an automated process employing focused multivector ultraviolet (FMUV) light technology during operating room (OR) terminal cleaning.
An Association of periOperative Registered Nurses terminal cleaning protocol was modified to incorporate the use of automated FMUV technology that allows workers to occupy the room during operation. This modified protocol was compared with a standard manual-chemical cleaning and disinfection protocol. Equipment surfaces were pre-sampled before and after terminal cleaning. A total of 165 objects were sampled in each process using a 5-point multisided sampling method.
The parallel process employing FMUV reduced the active microbial burden by 96.5% from baseline (P < .0001), which was over 2.5 times better than the standard process. The standard terminal manual-chemical disinfection process reduced the active microbial burden on sampled objects by 38.4% from baseline (P < .0001).
The data demonstrates that the performance of standard manual-chemical disinfection alone is variable in a live clinical setting even under the most ideal conditions. By comparison, automated FMUV treatment incorporated in a parallel process consistently produced thorough and significant reductions of microbial contamination levels on all visibly clean patient care equipment.
这项非随机对照观察性研究评估了在手术室（OR）终末清洁过程中，标准手动化学消毒流程与采用聚焦多矢量紫外线（FMUV）光技术的自动化流程的性能。
对围手术期注册护士协会的终末清洁方案进行了修改，纳入了自动化FMUV技术的使用，该技术允许工作人员在操作过程中留在室内。将修改后的方案与标准手动化学清洁和消毒方案进行比较。在终末清洁前后对设备表面进行预采样。每个流程中使用五点多边采样方法共对165个物体进行采样。
采用FMUV的并行流程使活性微生物负荷较基线降低了96.5%（P <.0001），比标准流程好2.5倍以上。标准终末手动化学消毒流程使采样物体上的活性微生物负荷较基线降低了38.4%（P <.0001）。
数据表明，即使在最理想的条件下，单纯的标准手动化学消毒在实际临床环境中的效果也存在差异。相比之下，并行流程中采用的自动化FMUV处理始终能显著彻底降低所有外观清洁的患者护理设备上的微生物污染水平。
