Chest:培养阴性医源性肺炎 抗MRSA降阶梯治疗是否影响结局?

2019-01-26 贾朝娟 环球医学

2019年1月,发表在《Chest》的一项研究调查了对于培养阴性医源性肺炎患者,抗耐甲氧西林金黄色葡萄球菌(MRSA)降阶梯(DE)是否影响28天医院死亡率、ICU时间和住院日。结果显示,28天死亡率没改变,但是医院LOS较短和急性肾损伤(AKI)发生率较低。

2019年1月,发表在《Chest》的一项研究调查了对于培养阴性医源性肺炎患者,抗耐甲氧西林金黄色葡萄球菌(MRSA)降阶梯(DE)是否影响28天医院死亡率、ICU时间和住院日。结果显示,28天死亡率没改变,但是医院LOS较短和急性肾损伤(AKI)发生率较低。

背景:对于培养阳性的医源性肺炎患者,将广谱经验抗生素降阶梯为窄谱药物,已经证实可减少广谱抗生素的使用,而不损害患者的结局。然而,在培养阴性医源性肺炎患者中,对于抗耐甲氧西林金黄色葡萄球菌(MRSA)抗生素降阶梯的安全性问题,仍然存在不确定性。本研究旨在确定抗MRSA药物降阶梯是否影响培养阴性医源性肺炎患者28天医院死亡率、ICU和住院日、治疗失败和安全性。

方法:这项单中心回顾性队列研究纳入了2012~2017年因医源性肺炎而住院的成年患者,这些患者痰培养阴性。降阶梯定义为在初始的4天内停用抗MRSA药物。次要结局包括医院死亡率、住院日和ICU住院日、治疗失败、发生AKI。

结果:纳入的279名患者中,降阶梯组92人,非降阶梯组(NDE)187人。非降阶梯组MRSA覆盖天数比降阶梯组组患者多5天,然而,两组28天死亡率无差异(NDE组vs DE组:28% vs 23%;差异,-5.5%;95% CI,-16.1~6.5)。

索引日期后,降阶梯组患者医院LOS(DE组vs NDE组:15天vs 20天;差异,3.2天;0.1~6.4)和ICU LOS(10 vs 13天;2.2天;-0.3~4.9)较短。

非降阶梯组患者AKI发生率显着升高(DE组vs NDE组:36% vs 50%;差异,-13.8%;-26.9~-0.4)。

结论:虽然抗MRSA药物降阶梯未影响培养阴性医源性肺炎患者的28天死亡率,但是其与医院LOS较短和AKI发生率较低相关。

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    2019-04-03 仁医06
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