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APIC 2013:研究发现消化道内窥镜清洁失败较常见

2013-06-18 高晓方 译 医学论坛网

感染控制和流行病专家协会(APIC)2013年会公布的一项研究表明,用于筛查的消化道内窥镜有相当一部分(3/20)存在清洁失败现象。   研究者们对美国5家医院275个用于结肠镜、胃镜和十二指肠镜检查的纤维内窥镜进行了分析。手工去污和消毒之后,清洗技师使用无菌水冲洗内镜。采集上述水样进行生物污染标志物三磷酸腺苷(ATP)分析,以ATP水平高于200相对光单位作为手工清洁失败阈值。结果显示,十二指

感染控制和流行病专家协会(APIC)2013年会公布的一项研究表明,用于筛查的消化道内窥镜有相当一部分(3/20)存在清洁失败现象。  

研究者们对美国5家医院275个用于结肠镜、胃镜和十二指肠镜检查的纤维内窥镜进行了分析。手工去污和消毒之后,清洗技师使用无菌水冲洗内镜。采集上述水样进行生物污染标志物三磷酸腺苷(ATP)分析,以ATP水平高于200相对光单位作为手工清洁失败阈值。结果显示,十二指肠镜、胃镜和结肠镜的清洁失败率分别为30%、24%和3%。  

研究者Marco Bommarito博士表示,上述结果惊人但并不必然意味着患者处于感染风险之中。在清洁内窥镜过程中的38项工序中,事实上仅8%被评估认为是有效的,我们还应尽可能的评估此过程中的更多工序,或者为技师去探索更简易的清洁工序。厂家正努力研究程序自动化,但不可能太快,而且这样的设备也可能并不是在所有的机构中能负担得起。同时,对清洁过程的手工部分进行详细检查和质量管控有助于改善内镜清洁效果,改善清洗技师的工作环境亦有效果。  

Marcia Patrick评论该研究时表示,内窥镜管腔狭窄并且接触身体高度污染区域,因此往往难以清洁;该研究发现的3/20内窥镜污染是相当的高,ATP是一项不错的检测手段。

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FORT LAUDERDALE, Florida — In a study that measured the cleanliness of endoscopes used at 5 hospitals across the United States, 3 of 20 flexible gastrointestinal endoscopes used for screening were found to harbor unacceptable levels of bacteria.The finding was a surprise, lead author Marco Bommarito, PhD, from the infection prevention division at 3M, in St. Paul, Minnesota, told Medscape Medical News...

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