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目的了解医疗机构口腔综合治疗台水路卫生管理及出水水质状况,探讨控制水路污染的对策措施。方法采用问卷调查、现场观察和采样检测的方法对上海市部分医疗机构内的口腔综合治疗台水路污染状况进行调查,使用t检验、卡方检验(α=0.05)进行组间比较。结果共调查53家医疗机构,其中定期开展口腔综合治疗台水路过滤器维护的50家(50/53,94.34%),开展储水瓶清洗消毒的7家(7/25,28.00%),负责人关注口腔综合治疗台水路卫生及水质状况的13家(13/53,24.53%),无医疗机构开展过口腔综合治疗台水路管道清洗消毒或水质卫生检测。共采样检测38个DUWLs单元的152件水样,其中水源水合格34件(34/38,89.47%),DUWLs出水合格15件(15/114,13.16%)。以灭菌注射用水为水源水的DUWLs出水水样细菌总数明显低于其余蒸馏水、净/纯水等水源水的出水水样细菌总数(t=9.34,P=0.00),三用枪及手机出水水样细菌总数高于漱口用水水样细菌总数。结论口腔综合治疗台水路污染严重,但医疗机构对此认识不足且日常维护意识薄弱。建议尽快制定相关规范与标准,并加强医护人员培训指导,规范口腔综合治疗台水路的清洗消毒与卫生质量控制。
Objective To understand the hygienic management of waterway and quality of discharged water in the oral cavity of integrated medical treatment center in medical institutions and to discuss the countermeasures to control the pollution of waterway. Methods The survey of polluted waterway of oral integrated treatment units in some medical institutions in Shanghai was conducted by means of questionnaire survey, field observation and sampling and testing. The t test and the chi-square test (α = 0.05) were used to compare between groups. Results A total of 53 medical institutions were surveyed. Among them, 50 (50 / 53,94.34%) were routinely carried out for the maintenance of waterway filters in the oral integrated treatment center, 7 (7 / 25,28.00%) were responsible for cleaning and disinfecting water bottles, Concerned about the comprehensive treatment of waterway health and water quality 13 (53 / 24.53%), no medical institutions have conducted oral comprehensive treatment of waterway pipeline cleaning disinfection or water quality health testing. A total of 152 water samples from 38 DUWLs units were sampled and tested, of which 34 were water qualified (34/38, 89.47%) and 15 were DUWLs qualified (15/114, 13.16%). The total number of bacteria in the effluent water samples of DUWLs treated with water for sterilization was significantly lower than that of other distilled water, pure water and pure water (t = 9.34, P = 0.00) The total number of watery bacteria is higher than the total number of bacteria in the gargle water sample. Conclusion Oral treatment waterway pollution is serious, but medical institutions lack awareness and routine maintenance awareness is weak. Recommendations as soon as possible to develop relevant norms and standards, and strengthen training of medical staff guidance to standardize oral integrated treatment of waterway cleaning and disinfection and health quality control.