NEJM:心脏手术后左西孟旦血流动力学支持疗效如何?

2017-03-22 xing.T MedSci原创

心脏手术后需要围手术期血流动力学支持的患者,低剂量的左西孟旦加上标准的治疗相比于安慰剂治疗并没有降低30天死亡率。

急性左心功能不全是心脏手术的主要并发症,并与死亡率增加有关。小型试验的Meta分析结果表明左西孟旦可能会增加接受心脏手术患者的生存率。最近,顶级医学期刊NEJM上发表了一项针对心脏手术后需要围术期血流动力学支持的患者进行的多中心、随机、双盲、安慰剂对照的临床试验。

根据预先设定的标准,患者被随机分配接受左西孟旦(连续输注剂量为0.025至0.2μg每公斤体重每分钟)或安慰剂,长达48小时,或直到从ICU转出,再加上标准的护理。该研究的主要结局是30天死亡率。

506例患者入选后,试验无效。共有248例患者被分配接受左西孟旦治疗,另有258例患者接受安慰剂治疗。研究人员发现左西孟旦组和安慰剂组之间在30天的死亡率没有显著差异(32例[12.9%] vs. 33例[12.8%];绝对风险差异为0.1个百分点;95%可信区间[CI]为-5.7到5.9;P=0.97)。在机械通气时间(中位数分别为19小时和21小时,中位数差异为-2小时;95%CI为-5到1;P=0.48),ICU停留时间(平均分别为72小时和84小时;中位数差异为-12小时;95%CI为-21到2;P=0.09)和住院时间(中位数分别为14天和14天;中位数差异为0天;95%CI为-1到2;P=0.39)方面两组之间也无显著性差异。左西孟旦组和安慰剂组低血压或心律失常发生率两组间都没有显著差异。

心脏手术后需要围手术期血流动力学支持的患者,低剂量的左西孟旦加上标准的治疗相比于安慰剂治疗并没有降低30天死亡率。

原始出处:

Giovanni Landoni, et al. Levosimendan for Hemodynamic Support after Cardiac Surgery. N Engl J Med 2017; http://www.nejm.org/doi/full/10.1056/NEJMoa1616325#t=abstract

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    2017-03-22 8919

    好好学习

    0

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    2017-03-22 1e1c0c66m00(暂无匿称)

    很好

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