两种空气消毒方法对介入手术室空气洁净度的动态监测

目的 比较紫外线空气消毒机循环风消毒和空气净化屏消毒两种方法对介入手术室连台手术空气的消毒效果,为制定控制医院感染措施提供依据.方法 用平板自然沉降法于手术室空气消毒后不同时段采样检测,观察两种消毒方法对连台介入手术室空气的杀菌效果.结果 两种消毒方法对连台手术术前空气都有较好的消毒效果(P＞0.05),利用紫外线消毒,手术室的各采样时段菌落检测结果有显著差异(P＜0.01),随着距离消毒时间的延长,菌落数增加.空气净化屏对手术室进行持续动态空气净化,使手术全过程空气中菌落数符合国家卫生消毒标准.结论 空气净化屏24 h持续净化可以缩短手术间隔时间,急诊随到随做,防止医院交叉感染的发生.

Two air disinfection methods for the air cleanliness in interventional operation room: a dynamic monitoring observation

Objective To compare the interventional operation room air disinfection effect of circulatingair disinfection method by an ultraviolet air disinfector with that of air-purifying screen disinfection method in order to provide scientific basis for formulating optimal measures to control hospital infection.Methods By using plate natural sedimentation method,air sampling was conducted at different period of time after the start of air disinfection in operation room.The air sterilization results of the two disinfection methods for the operation room where several consecutive interventional procedures had been performed were compared.Results Both disinfection methods had better preoperative air disinfection effect (P＞0.05).When ultraviolet disinfection method was used,the differences in colony detection results among the air samples that were collected at different time periods were statistically significant (P＞0.01).With the increasing of time after the start of air disinfection,the number of bacterial colonies was increased.If air-purifying screen disinfection method was employed,the air in the operation could be continuously and dynamically purified,the number of bacterial colonies determined in the whole course of operation met the national hygienic standard for air disinfection.Conclusion Continuous air purification by using air-purifying screen disinfection method can shorten the interval between consecutive surgeries,meanwhile,the operation room can be kept in a condition for any emergency surgery at anytime,besides,nosocomialtion can be effectively prevented.