摘要
目的调查医院呼吸机管路系统及附件细菌污染现状,为改进无菌技术提供依据。方法对医院36台呼吸机吸入段及呼出段螺纹管、面罩、Y型管、湿化罐加热棒、冷凝水收集瓶、雾化器和空气过滤器等分别进行细菌采样和培养,检测其阳性率;将第1次细菌培养结果上报医院感染办公室,对所有呼吸机加强消毒管理,再进行第2次取样细菌培养。结果第1次细菌培养结果显示,呼吸机管道或附件细菌培养均阳性,其中吸入段螺纹管、湿化罐加热棒、冷凝水收集瓶、雾化器和空气过滤器细菌培养阳性率>50.0%;进行呼吸机消毒管理以后,第2次细菌培养阳性率显著降低(P<0.05),均<5.6%。结论呼吸机管路系统的细菌污染现象普遍存在,强化无菌观念、规范消毒方法,使细菌污染阳性率降低。
OBJECTIVE To investigate the bacterial contamination status of ventilator systems and corresponding measurements. METHODS Bacterial culture samples of auxiliary equipments of 36 ventilators, including inlet and outlet tube, mask, humidifier, water collector, nebulizer, and air filter, were respectively collected. The culture results were reported to the infectious disease control office of the hospital. After improved the sterilization management, then repetition of bacterial culture was performed and the results were compared with the former. RESULTS The first cultural results demonstrated severe bacterial contamination and the positive rate of inlet tube, humidifer, water collector, nebulizer, and air filter was even higher than 50%. After countermeasures were conducted, the positive rate of second bacterial culture of all ventilator systems was significantly dropped to less than 5. 5%. CONCLUSIONS Bacterial contamination of ventilator systems commonly exists which can be significantly diminished by improved conception of asepsis and standardized sterilization.
出处
《中华医院感染学杂志》
CAS
CSCD
北大核心
2009年第5期534-535,共2页
Chinese Journal of Nosocomiology
关键词
呼吸机
医院感染
Ventilator system
Hospital infection