三种消毒方法对重症监护病房物体表面消毒效果的比较研究  

Comparative study among three methods on surface disinfection in Intensive Care Unit

作　　者：任小兵[1] 查梅[1] 刘焱银 喻萍[1] 贺雪萍[1] 魏铭[2] 

机构地区：[1]简阳市人民医院感染管理部,四川简阳641400 [2]简阳市人民医院重症监护室,四川简阳641400

出　　处：《华西医学》2017年第3期357-360,共4页West China Medical Journal

基　　金：四川省预防医学科研基金(SCJK008)

摘　　要：目的比较3种消毒方法在消毒后不同时间对重症监护病房高频接触物体表面的杀菌效果,探讨合理的消毒方法与消毒间隔时间。方法 2015年11月—12月分别采用楼宇系统酸性氧化电位水、卫生湿巾和500 mg/L含氯消毒液对4个高频接触物体表面进行擦拭消毒,于消毒前和消毒后10 min、30 min、1 h、2 h、4 h采样培养,比较消毒后不同时点各方法的杀菌率和消毒合格率。结果 3种方法的杀菌率和消毒合格率均随时间下降。楼宇系统酸性氧化电位水在各时点的杀菌率均低于其他2组,差异有统计学意义(P<0.05);含氯消毒液和卫生湿巾消毒后4 h内的杀菌率均>90.0%。消毒后10、30 min,3种方法的消毒合格率差异均无统计学意义(P>0.05);消毒后1、2、4 h,楼宇系统酸性氧化电位水的消毒合格率均低于卫生湿巾和含氯消毒液,差异有统计学意义(P<0.05),且消毒后4 h消毒合格率为0.0%;消毒后4 h,卫生湿巾的消毒合格率低于含氯消毒液,差异有统计学意义(P<0.05)。结论楼宇酸性氧化电位水杀菌效果弱于含氯消毒液和卫生湿巾,且物体表面消毒后易再次污染,建议楼宇酸性氧化电位水擦拭消毒频次为1次/h,卫生湿巾和含氯消毒液擦拭消毒频率可为每2小时1次。Objective To compare germicidal effect of three disinfectants acting on frequently-touched surfaces in Intensive Care Unit （ICU） at different time points after disinfection so as to put forward the reasonable disinfection method and interval before the next disinfection. Methods We wiped the four frequently-touched surfaces in ICU with disinfectant containing acidic electrolyzed oxidizing water （EOW） from the building system of hospital, disinfectant wipes, and 500 mg/L chlorine respectively. The culture samples were collected from the surfaces before wiping, and 10 minutes, 30 minutes, 1 hour, 2 hours and 4 hours after wiping respectively. The bacterial clearance rate and the qualified rate of bacterial colony counts on the surfaces were compared among the three different disinfectants at different time points after disinfection. Results The bacterial killing rate of three methods for disinfection of object surfaces decreased with the passing of time. The bacterial killing rate of EOW from the building system of hospital was lower than that of the other two methods at all five time points after disinfection （P〈 0.05）. The bacterial killing rate at hour four after disinfection using chlorine-containing disinfectant and disinfectant wipes was higher than 90.0%. The qualified rate of bacterial colony counts on the surfaces at 10 and 30 minutes after disinfection among the three groups was not significantly different （P〉0.05）. The qualified rate of bacterial colony counts on the surfaces disinfected by EOW from the building system of hospital was lower than that in the other two groups at the other three time points （P〈0.05）, and it was totally unqualified at hour four after disinfection. Conclusions The germicidal effect of EOW from the building system of hospital is inferior to chlorine disinfectant and disinfectant wipes. Moreover, the surface can be easily recontaminated after disinfection. It is suggested that EOW should be used in ICU every other hour. and the other two disinfection m

关 键 词：楼宇系统酸性氧化电位水 物体表面 含氯消毒液 卫生湿巾 消毒频率 

分 类 号：R197.323[医药卫生—卫生事业管理]