Plos one:抗菌药物降阶梯治疗的好处和意想不到的后果

2017-02-12 MedSci MedSci原创

连续抗菌药物降级治疗旨在当实验室检验确定药物敏感性时转换为敏感药物,以此达到最大限度地降低对高广谱经验抗微生物药物的耐药性。虽然临床广泛使用,但是抗菌药物的降级仍然难以理解。各种干预和结果的定义在不同的研究之间各不相同。近期,一项发表在Plos one杂志上的研究使用铜绿假单胞菌在重症监护室中的传播和进化模型,以评估药物降级对患者结局的影响。在此项研究中,抗菌药物降级减少了高广谱药物的使用,并能保

连续抗菌药物降级治疗旨在当实验室检验确定药物敏感性时转换为敏感药物,以此达到最大限度地降低对高广谱经验抗微生物药物的耐药性。


虽然临床广泛使用,但是抗菌药物的降级仍然难以理解。各种干预和结果的定义在不同的研究之间各不相同。

近期,一项发表在Plos one杂志上的研究使用铜绿假单胞菌在重症监护室中的传播和进化模型,以评估药物降级对患者结局的影响。

在此项研究中,抗菌药物降级减少了高广谱药物的使用,并能保持经验性治疗的有效性,但与此同时也使的细菌产生了选择性多药耐药菌株,并使患者易于发生细菌定植和重叠感染。在此项研究中,抗菌药物降级可以增加感染流行率,但同时也增加有效治疗的可能性。死亡率的变化很小,可以是阳性结果也可以使阴性结果。

这些临床结果(如感染流行率和死亡)微小变化的意义可能超过更容易检测到的药物使用和耐药性的变化。将伤害和利益综合到每个患者的中可以在这些权衡的分析中提供一种新方式。此项研究提供了一个概念框架,用于更好的进行抗菌素管理。

原始出处:
Hughes J, Huo X, Falk L, et al. Benefits and unintended consequences of antimicrobial de-escalation: Implications for stewardship programs. PLoS One. 2017 Feb 9;12(2):e0171218.

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    2017-02-14 lhlxtx
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