Department of Medicine Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, via S. Allende 1, 84081 Baronissi, SA, Italy.
Department of Medicine Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, via S. Allende 1, 84081 Baronissi, SA, Italy.
J Infect Public Health. 2020 Dec;13(12):2038-2044. doi: 10.1016/j.jiph.2020.09.020. Epub 2020 Oct 21.
The increasing emergence and spread of multiresistant microorganisms in hospital wards is a serious concern. Traditional protocols are often not sufficient to protect patients susceptible to serious and life-threatening infections, therefore new strategies for decontaminating hospital environments are crucial to reducing microbial transmission and the spread the nosocomial infections. The adoption of modern technologies is indicated to supplement traditional methods and to improve desired levels of surface disinfection.
This work aims to report the development, implementation, and validation of cleansing and sanitizing procedure for critical clinical settings through the innovative use of disposable cloths pre-impregnated with solutions containing different active formulations and biocidal agents, relating to the areas to be treated (low, moderate, high-risk).
The implementation and validation of the sanitizing system were conducted in different wards of two healthcare structures. The protocol for the study involved a structured selection of representative surfaces, such as the floor, bathroom, desk, and beds. Microbiological analyses were performed according to ISO 4833-1:2013.
The efficiency of the proposed system was measured through the estimation of total microbial count values on the different surfaces before and after the sanitization operations by traditional methods and by the system described here. The results demonstrated a significant reduction in the microbial count that always fell below the threshold value. For the analyzed surfaces such as shower tray, bathroom floor, toilet edge, the traditional system had an effectiveness of less than 10%, whereas pre-impregnated cloths succeed to eliminate about 90% of the bacteria present. As an example, on the floor we observed a microbial count reduction from >42 to 10CFU/11cm with the new method (76% of colonies were destroyed), while with the traditional one we have a reduction from >42 to 28CFU/11cm (33% of microbial colonies). Moreover, the advantages of using this sanitization system are not limited to disinfecting surfaces and limiting cross-contamination but involve all activities related to the cleaning and disinfection operations, including the training and education of the operators and traceability of the operations.
The innovative disinfection and cleaning protocol used in the present study proved to be a highly valuable alternative to the traditional cleaning procedures in healthcare settings for the sanitizing process of all kinds of surfaces. All tools were specifically designed to improve disinfection efficiency and to reduce the problems associated with traditional methods, such as preventing cross-contamination events, limiting the physical efforts of operators, and avoiding incorrect practices. Our findings add support to the knowledge that an effective sanitization procedure is critical in minimizing microorganisms' transmission and cross-contamination.
医院病房中多耐药微生物的不断出现和传播是一个严重的问题。传统方案通常不足以保护易受严重和危及生命的感染的患者，因此，新的医院环境去污策略对于减少微生物传播和医院感染的传播至关重要。采用现代技术是为了补充传统方法，并提高表面消毒的理想水平。
本研究旨在报告通过使用预浸渍有不同活性配方和杀生物剂的一次性布，为关键临床环境开发、实施和验证清洁和消毒程序，涉及待处理区域（低、中、高风险）。
在两个医疗机构的不同病房中实施和验证了消毒系统。该研究的方案包括对地板、浴室、办公桌和病床等代表性表面进行结构化选择。根据 ISO 4833-1:2013 进行微生物分析。
通过传统方法和本文所述系统对不同表面消毒前后的总微生物计数值进行估计，测量了所提出系统的效率。结果表明，微生物计数显著降低，始终低于阈值。对于分析的表面，如淋浴盘、浴室地板、马桶边缘，传统系统的有效性小于 10%，而预浸渍布成功消除了约 90%的存在细菌。例如，在地板上，我们观察到新方法下的微生物计数从>42 减少到 10CFU/11cm（76%的菌落被破坏），而传统方法下的微生物计数从>42 减少到 28CFU/11cm（33%的菌落）。此外，使用这种消毒系统的优点不仅限于消毒表面和限制交叉污染，还涉及与清洁和消毒操作相关的所有活动，包括操作人员的培训和教育以及操作的可追溯性。
本研究中使用的创新消毒和清洁方案被证明是医疗环境中传统清洁程序的一种非常有价值的替代方法，适用于各种表面的消毒过程。所有工具均专门设计用于提高消毒效率，并解决传统方法相关的问题，例如防止交叉污染事件、减少操作人员的体力消耗以及避免不当操作。我们的研究结果支持以下观点，即有效的消毒程序对于最大限度地减少微生物传播和交叉污染至关重要。
