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NEJM:单硝酸异山梨酯不能提高保守射血分数心衰患者的活动能力

2015-11-09 崔倩 译 MedSci原创

硝酸盐是常用的处方,以提高保守射血分数心力衰竭患者患者活动耐受性。研究人员比较了单硝酸异山梨酯或安慰剂对此类患者日常活动中的效果。在这项多中心,双盲,交叉研究中,110例保守射血分数心力衰竭患者被随机分配到接受单硝酸异山梨酯的6周剂量递增方案(从30mg至60mg至120mg,每天一次)或安慰剂,随后交叉到另一组6周。主要终点是日常活动的水平,量化为在120mg阶段平均每天加速度计单位的,通过患者

硝酸盐是常用的处方,以提高射血分数保留的心力衰竭患者活动耐受性。研究人员比较了单硝酸异山梨酯或安慰剂对此类患者日常活动中的效果。

在这项多中心、双盲、交叉研究中,110例射血分数保留的心力衰竭患者被随机分配到接受单硝酸异山梨酯的6周剂量递增方案(从30mg至60mg至120mg,每天一次)或安慰剂,随后交叉到另一组6周。主要终点是日常活动的水平,量化为在120mg阶段平均每天加速度计单位的,通过患者佩戴式加速度计进行评估。次要终点包括在120mg阶段每天的活动的小时数,在所有三个剂量方案中每天的加速度单位,生活质量的评分,6分钟步行距离和N-末端–脑钠肽水平(NT-proBNP)。

在接受120mg剂量的单硝酸异山梨酯组中,与安慰剂组相比,较低的日常活动趋势不显著(-381加速度单位,95%可信区间[Cl],-780至17;P=0.06),并且每天的活动时间显著减少(-0.30小时; 95%CI,-0.55至-0.05;P=0.02)。在所有的剂量方案中,单硝酸异山梨酯组的活性明显低于安慰剂组(-439加速度单位;95%Cl,-792至-86;P=0.02)。随着单硝酸异山梨酯剂量的增加,活动水平逐步显著下降(但安慰剂组不是这样)。6分钟步行距离,生活质量分数,或NT-proBNP水平目前还没有显著组间差异。

接受单硝酸异山梨酯的射血分数保留的心力衰竭患者是不太活跃的,没有比接受安慰剂的患者表现出更好地生活质量和次极量运动能力。

原始出处:

Margaret M. Redfield,Kevin J. Anstrom,James A. Levine,et al.Isosorbide Mononitrate in Heart Failure with Preserved Ejection Fraction,NEJM,2015.11.8

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    2015-12-05 惜言

    意思是心衰的可以不吃

    0

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