The Research Center for Medical Sciences, The Third XiangYa Hospital and Center for Scientific Research with Animal Models, Central South University, Changsha, 410013, China.
Health Management Center, The Third XiangYa Hospital, Central South University, Changsha, 410013, China.
Photodiagnosis Photodyn Ther. 2019 Sep;27:137-140. doi: 10.1016/j.pdpdt.2019.05.034. Epub 2019 May 29.
Non-thermal atmospheric plasma treatment and pulsed xenon ultraviolet (PX-UV) treatment are widely used in disinfection of hospital environments. However, their effectiveness has not been evaluated against a comparator. The objective of this study is to evaluate their effectiveness in the disinfection of pathogens in the air in hospital blood sampling rooms.
Samples were taken from the air before and after disinfection with PX-UV and non-thermal atmospheric plasma. We counted bacterial colonies and identified the types of bacteria.
Non-thermal plasma treatment significantly reduced bacterial counts in the air, the median reduced from 1 before treatment to zero afterwards (p = 0.03). PX-UV treatment also significantly reduced bacterial counts in the air (p = 0.01), the median reduced from 1.5 before treatment to zero afterwards. Pathogens identified in the current study include nosocomial bacteria, such as Staphylococcus aureus, Staphylococcus epidermidis, and yeast.
Disinfection of blood sampling sites is essential in a health service department. The efficiency of PX-UV and non-thermal atmospheric plasma treatment are comparable in air disinfection.
非热常压等离子体处理和脉冲氙紫外线（PX-UV）处理广泛应用于医院环境的消毒。然而，它们的效果尚未与对照物进行评估。本研究的目的是评估它们在医院采血室空气中病原体消毒方面的有效性。
在使用 PX-UV 和非热常压等离子体进行消毒前后，从空气中采集样本。我们计算了细菌菌落数并鉴定了细菌种类。
非热等离子体处理显著降低了空气中的细菌数量，中位数从处理前的 1 降至处理后的 0（p=0.03）。PX-UV 处理也显著降低了空气中的细菌数量（p=0.01），中位数从处理前的 1.5 降至处理后的 0。本研究中鉴定出的病原体包括医院内细菌，如金黄色葡萄球菌、表皮葡萄球菌和酵母。
在卫生服务部门，采血部位的消毒至关重要。PX-UV 和非热常压等离子体处理在空气消毒方面的效率相当。
