3种方法对呼吸机管道消毒效果的比较  

Disinfection of Ventilator Circuits:A Comparison with Three Methods

作　　者：戴李中[1] 郑柏湘[1] 邬红萍[1] 

机构地区：[1]绍兴市人民医院,浙江绍兴312000

出　　处：《中华医院感染学杂志》2006年第11期1257-1258,共2页Chinese Journal of Nosocomiology

摘　　要：目的 比较3种方法消毒呼吸机管道的效果。方法 对呼吸机管道分别采用1％施康含氯消毒剂浸泡（方法A）、0．5％过氧乙酸溶液浸泡（方法B）和环氧乙烷灭菌（方法C）3种方法进行消毒灭菌，于消毒前、后采样进行细菌培养、菌落计数及生物学监测，比较3种方法的消毒效果。结果 消毒前所有样本细菌培养阳性率100％；呼吸机管道的细菌数达70 000-120 000CFU／cm^；方法C生物学监测灭菌合格率为100％，细菌培养阳性率为零，与方法A、B（合格率分别为86．25％、90．00％，阳性率分别为16．25％、13．78％）比较，差异有统计学意义（P〈0．01）。结论 呼吸机管道污染严重；浸泡法消毒效果受外界因素和人为因素影响大，易造成消毒不合格或消毒后再污染；环氧乙烷法消毒效果最佳。OBJECTIVE To compare the effect with the three methods to disinfect the ventilator circuits. METHODS To disinfect the ventilator circuits, three methods were used： A, soaking with chlorine compoud disinfectant; B：soaking with 0. 5% peracetic acid; C, sterilizing with ethylene oxide. Samples were taken to bacteria culture before and after disifection in every three methods. 13iological supervision and the amount of colony were also taken at the same time. RESULTS The results of bacteria culture pre-disinfection were all positive. The amount of bacteria of ventilator circuits was between 70 000-120 000CFU/cm^2. The eligible rate of biological supervision in method C was 100% and its positive rate of bacteria culture was 0%. The eligible rate of biological supervision in method A was 86.25% and its positive rate of bacteria culture was 16.25%. The eligible rate of biological supervision in method B was 90% and its positive rate of bacteria culture was 13.78%. It was significant when method C was compared with methods A and B and the value P was less than 0.01. CONCLUSIONS It is serious about the pollution in ventilator circuits. The soaking methods are apt to be effected by the factors of environment and manual operation. Therefore it could be ineligible and being polluted after disinfection. The method of sterilization is the best for disinfection.

关 键 词：呼吸机管道 消毒方法 效果 

分 类 号：R187.1[医药卫生—流行病学]