三种消毒方式对呼吸科病房消毒效果的对比研究

Comparative study on disinfection effect of three disinfection methods in respiratory ward

目的：对比多功能空气消毒机、紫外线灯及自然通风三种方式对呼吸病房的消毒效果，为有效控制医院感染率提供参考依据。方法选择呼吸内科4间病房分为4组，比较三种消毒方式有效消毒后病房空气细菌总数。结果消毒前，各组空气细菌总数差异无统计学意义（ P〉0.05）；消毒后30 min，各组消毒效果差异无统计学意义（ P〉0.05）；消毒后60 min和120 min，各组消毒效果差异有明显统计学意义（ P〈0.05）。结论三种空气消毒方式均能有效改善病房空气质量，但空气消毒机、紫外线灯运用效果优于自然通风消毒，空气消毒机运用环境优于紫外线灯消毒。

Objective To compare the effect of multifunction air disinfection machines with ultraviolet light disinfection and natural ventilation in the improvement of air quality in respiratory wards, so as to provide reference evidence for the effective control of hospital infection rates. Methods Four respiratory wards were divided into four groups, and the total number of air bacteria in these wards after three kinds of effective disinfection were compared.Results There was no significant difference about the total bacterial count among four groups before disinfection. 30 min after disinfection, there was still no significant difference, but the total bacterial count with different disinfection methods were statistically different after 60 min and 120 min.Conclusions Three kinds of disinfection all can effectively improve the air quality in wards. But the sterilization effect of air disinfection machines and ultraviolet light are better than natural ventilation, and the using environment of air disinfection is better than ultraviolet light disinfection.