Hashimoto Masayoshi, Asai Satomi, Umezawa Kazuo, Tanitsu Ryosuke, Miyazawa Miki, Kobayashi Michiko, Kawakami Yuji, Sekine Yoshika, Suzuki Yuji, Miyachi Hayato, Okami Kenji
Department of Pharmacy, Tokai University Hospital, Isehara 259-1193, Japan.
Division of Infection Control, Tokai University Hospital, Isehara 259-1193, Japan.
Infect Dis Rep. 2023 Feb 20;15(1):142-149. doi: 10.3390/idr15010015.
In hospitals, outbreaks can occur due to pathogens accumulating in the areas around the wards' washbasins. Carbapenem-resistant Enterobacterales (CRE) was detected in an environmental survey in the high-care unit of a university hospital in Isehara, Japan, and effective cleaning methods were investigated. This study investigated methods of cleaning taps using commonly used detergents and disinfectants, and it assessed their effectiveness in removing hard scale and pathogens, including CRE. The taps were cleaned using various methods and cleaning agents, including environmentally neutral detergent, citric acid, baking soda, cleanser, 80% ethanol, 0.1% sodium hypochlorite, and a phosphoric acid-based environmental detergent (Space Shot). The cleaning effect was assessed based on the agent's effectiveness at removing hard scale from taps. Biofilms and scale were identified on taps, and several bacterial species were cultured. Only phosphoric acid-based detergent was effective at removing hard scale. After cleaning with the phosphoric acid-based detergent, the bacterial count decreased, and no CRE or other pathogens were detected. These results provide a reference for other facilities considering introducing this cleaning method.
在医院里，病房洗手盆周围区域病原体的积累可能会引发疫情。在日本伊势原市一家大学医院的重症监护病房进行的一项环境调查中，检测到了耐碳青霉烯类肠杆菌科细菌（CRE），并对有效的清洁方法展开了调查。本研究调查了使用常用洗涤剂和消毒剂清洁水龙头的方法，并评估了它们在去除硬水垢和包括CRE在内的病原体方面的有效性。使用多种方法和清洁剂清洁水龙头，包括环境中性洗涤剂、柠檬酸、小苏打、清洁剂、80%乙醇、0.1%次氯酸钠以及一种基于磷酸的环境洗涤剂（Space Shot）。根据清洁剂去除水龙头硬水垢的效果来评估清洁效果。在水龙头上识别出生物膜和水垢，并培养出了几种细菌种类。只有基于磷酸的洗涤剂能有效去除硬水垢。用基于磷酸的洗涤剂清洁后，细菌数量减少，未检测到CRE或其他病原体。这些结果为其他考虑引入这种清洁方法的设施提供了参考。
