Circulation:静脉铁剂对慢性心衰患者运动耐量的影响

2017-07-14 MedSci MedSci原创

既往研究显示铁缺乏与心衰患者运动耐量的下降和预后结局呈相关性。但是,通过静脉铁剂(FCM)补铁是否能影响心衰患者运动耐量的指标-峰值耗氧量尚属未知。近日,在国际心血管权威杂志Circulation上发表了一篇旨在研究静脉补铁与慢性心衰患者运动耐量相关性的临床研究。

既往研究显示铁缺乏与心衰患者运动耐量的下降和预后结局呈相关性。但是,通过静脉铁剂(FCM)补铁是否能影响心衰患者运动耐量的指标-峰值耗氧量尚属未知。近日,在国际心血管权威杂志Circulation上发表了一篇旨在研究静脉补铁与慢性心衰患者运动耐量相关性的临床研究。

本研究纳入的对象是收缩型心衰(左室射血分数≤45%)患者和即使接受了标准的药物治疗还存在轻到重度心衰症状的患者。所有的研究对象被随机1:1分配至接受24周FCM治疗组和标准对照治疗组。主要终点事件是24周内的峰值耗氧量的变化。次要终点事件包括血液和心脏生物标志物的影响、患者生活的质量和安全性。

最终,共纳入了172例心衰患者,其中86例患者接受FCM治疗,86例患者接受标准对照治疗。在研究刚开始,两组治疗组的患者是相匹配的,平均年龄是64岁,男性占75%,左室射血分数为32%。峰值耗氧量为13.5 mL/min/kg。FCM能显着增加血清铁蛋白和转铁蛋白饱和度。经过24周治疗后,对照组的峰值耗氧量有所下降(-1.19±0.389 mL/min/kg),但是FCM治疗组的患者能维持原来水平(0.16±0.387 mL/min/kg;两组之间 p=0.020)。在去除丢失数据分析后,第24周的对照组患者峰值耗氧量减少了0.63±0.375 mL/min/kg,FCM治疗组减少了0.16±0.373 mL/min/kg,两组间P=0.23。

研究结果表明,静脉铁剂治疗心衰患者能显着改善其血清铁的储存,尽管初步分析显示FCM能改善心衰患者的峰值耗氧量,但是这种影响对死亡患者是否纳入分析呈高度敏感性。

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    2017-07-15 fusion
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    2017-07-15 1e0cdf4em36(暂无匿称)

    静脉铁剂治疗改善心衰患者峰值耗氧量

    0

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    2017-07-14 明天会更好!

    学习过了,谢谢分享!

    0

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