Department of Nursing, Taipei City Hospital, Taipei, 10684, Taiwan.
Department of Nurse-Midwifery and Women Health, National Taipei University of Nursing and Health Sciences, Taipei, 11220, Taiwan.
Sci Rep. 2023 May 25;13(1):8490. doi: 10.1038/s41598-023-35352-9.
The sterilisation of surgical instruments is a major factor in infection control in the operating room (OR). All items used in the OR must be sterile for patient safety. Therefore, the present study evaluated the effect of far-infrared radiation (FIR) on the inhibition of colonies on packaging surface during the long-term storage of sterilised surgical instruments. From September 2021 to July 2022, 68.2% of 85 packages without FIR treatment showed microbial growth after incubation at 35 °C for 30 days and at room temperature for 5 days. A total of 34 bacterial species were identified, with the number of colonies increasing over time. In total, 130 colony-forming units were observed. The main microorganisms detected were Staphylococcus spp. (35%) and Bacillus spp. (21%) , Kocuria marina and Lactobacillus spp. (14%), and mould (5%). No colonies were found in 72 packages treated with FIR in the OR. Even after sterilisation, microbial growth can occur due to movement of the packages by staff, sweeping of floors, lack of high-efficiency particulate air filtration, high humidity, and inadequate hand hygiene. Thus, safe and simple far-infrared devices that allow continuous disinfection for storage spaces, as well as temperature and humidity control, help to reduce microorganisms in the OR.
手术器械的消毒是手术室感染控制的一个主要因素。为了确保患者的安全，手术室中使用的所有物品都必须是无菌的。因此，本研究评估了远红外线（FIR）辐射对长期储存消毒手术器械时包装表面菌落抑制的影响。从 2021 年 9 月至 2022 年 7 月，在 35°C 孵育 30 天和在室温下孵育 5 天后，85 个未经过 FIR 处理的包装中有 68.2%显示出微生物生长。共鉴定出 34 种细菌，随着时间的推移，菌落数量不断增加。共观察到 130 个菌落形成单位。主要检测到的微生物是葡萄球菌属（35%）和芽孢杆菌属（21%），海洋分枝杆菌和乳杆菌属（14%）和霉菌（5%）。在手术室中经过 FIR 处理的 72 个包装中未发现菌落。即使经过消毒，由于工作人员移动包装、扫地、缺乏高效空气过滤、高湿度和手部卫生不足等原因，仍可能发生微生物生长。因此，安全且简单的远红外线设备可以持续对储存空间进行消毒，并控制温度和湿度，有助于减少手术室中的微生物。
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