J Hosp Infect:ICU病房的污染情况,你造吗?

2018-07-07 林佳冰 SIFIC感染官微

众所周知,医疗区域内污染的环境和各种物品的表面会造成病原体的潜在传播,引发院内感染事件的发生,那么,你知道哪些区域容易被污染?远离患者和靠近患者的物表污染情况有何差别?有会被哪些病原体污染呢?请看看本研究的结果吧!

众所周知,医疗区域内污染的环境和各种物品的表面会造成病原体的潜在传播,引发院内感染事件的发生,那么,你知道哪些区域容易被污染?远离患者和靠近患者的物表污染情况有何差别?有会被哪些病原体污染呢?请看看本研究的结果吧!

现实情况中ICU病房环境污染情况

横断面调查

背景:

在重症监护室(ICU)中,环境物表和设备可能会受到包括多重耐药菌在内的医院病原体的污染。

目的:

评估靠近和远离患者的环境的污染程度,以及医护人员在工作中感染医院内病原体的情况,并调查潜在的传播事件。

方法:

在三周的时间内,在奥地利因斯布鲁克三级医院的8个ICU中,采集接近和远离患者区以及医护人员手部的琼脂样本。每个ICU在未提前通知的情况下调查一次,根据标准方法进行物种鉴定和抗菌药物敏感性测试,并使用脉冲场凝胶电泳对来自患者、环境和手样品的相应菌株进行基因分型。

结果:

在523个样本中,医护人员手部最常染有潜在的致病菌(15.2%),其次是接近患者的区域(10.9%)和远离患者的地区(9.1%)。肠球菌属的革兰氏阳性细菌最常见(67.8%),其中70%对万古霉素敏感性,30%对万古霉素耐药,其次是金黄色葡萄球菌,其中64%为耐甲氧西林金黄色葡萄球菌。在患者、环境和手部分离株中记录到了相同的菌株。

结论:

尽管进行清洁和消毒,但本研究仍发现ICU环境中存在包括多重耐药菌在内的病原体的广泛污染。生物负荷可能不仅仅受限于靠近患者的区域。为了预防感染而对远离患者的区域进行扩展环境消毒的作用仍需进一步讨论。

表1 ICU中培养场所及其病原体污染率a(N = 523)



表2 培养场所和ICU的相同基因型分布情况



原始出处:Wille, A. Mayr, P. Kreidl,et al. Cross-sectional point prevalence survey to study the environmental contamination of nosocomial pathogens in intensive care units under real-life conditions. Journal of Hospital Infection[J] 98(2018)90-95.

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    2018-07-07 wzb521zf

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    2018-07-07 lofter

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