Bacterial colonization of handheld devices in a tertiary care setting: a hygiene intervention study
Bacterial colonization of handheld devices in a tertiary care setting: a hygiene intervention study
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DOI：
10.1186/s13756-019-0546-y
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发表时间：
2019-06-06
影响因子：
5.5
通讯作者：
Brugger, Silvio D.
中科院分区：
文献类型：
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作者：
Frey, Pascal M.;Marti, Grischa R.;Brugger, Silvio D.
平板电脑越来越多地用于医院病人护理，并且经常被重要的人类病原体定植，而消毒干预措施的影响仍然存在争议。方法在一项前瞻性卫生干预研究中，我们连续取样了一家常规卫生措施严格、资源丰富的普通内科三级医疗机构专用的平板电脑。我们的目的是检查平板电脑上定植细菌在引入强制性每日两次片剂消毒干预前后的变化。通过常规培养进行微生物鉴定，并使用逻辑回归研究细菌定植与干预的关系。结果在168份样品中鉴定出149份（89%）定植菌。虽然最常见的鉴定种类是正常皮肤细菌，但在18份（11%）样品中发现的金黄色葡萄球菌是最常见的潜在病原体。我们没有检测到任何肠球菌或肠杆菌科。消毒干预与总体细菌定植显著减少相关（优势比0.16;95%-CI 0.04-0.56），而金黄色葡萄球菌的特异性定植仅略有减少（优势比0.46;95%-CI 0.16-1.29）。结论在高资源、高卫生环境下，每日2次消毒仍可显著减少院内平板电脑的细菌定植。
BackgroundTablet computers are increasingly being used in hospital patient care and are often colonized with important human pathogens, while the impact of disinfection interventions remains controversial.MethodIn a prospective hygiene intervention study we consecutively sampled tablet computers exclusively used in a high-resource general internal medicine tertiary care setting with high routine hygiene measures. Our aim was to examine the change in colonizing bacteria on tablet computers before and after the introduction of a mandatory twice daily tablet disinfection intervention. Microbial identification was performed by conventional culture, and the association of bacterial colonization with the intervention was investigated using logistic regression.ResultsIn a total of 168 samples we identified colonizing bacteria in 149 (89%) of samples. While the most commonly identified species were normal skin bacteria, Staphylococcus aureus found in 18 (11%) of samples was the most frequent potential pathogen. We did not detect any Enterococci or Enterobacteriaceae. The disinfection intervention was associated with substantially less overall bacterial colonization (odds ratio 0.16; 95%-CI 0.04-0.56), while specific colonization with Staphylococcus aureus was only slightly decreased (odds ratio 0.46; 95%-CI 0.16-1.29).ConclusionOur results indicate that a twice daily disinfection can still substantially reduce bacterial colonization of in-hospital tablet computers used in a high-resource and high hygiene setting.