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EUR HEART J :口服维生素D补充剂是否能降低晚期心衰患者的死亡率?

2017-08-25 MedSci MedSci原创

25-羟基维生素D(25OHD)的水平<75 nmol/L与死亡率风险的非线性增加有关,这一水平在心力衰竭(HF)中很常见。近日,在医学权威杂志EUR HEART J上面发表了一篇研究文章,该文章旨在探讨口服维生素D补充剂是否能降低晚期心衰患者的死亡率。

25-羟基维生素D(25OHD)的水平<75 nmol/L与死亡率风险的非线性增加有关,这一水平在心力衰竭(HF)中很常见。近日,在医学权威杂志EUR HEART J上面发表了一篇研究文章,该文章旨在探讨口服维生素D补充剂是否能降低晚期心衰患者的死亡率。

方法:
该研究纳入了400名25OHD水平<75 nmol/L的心衰患者。研究人员将这些参与者进行随机分组:每日接受4000 IU维生素D或安慰剂对照,长达3年。主要观察终点是全因死亡率。次要疗效指标包括住院、复苏、机械循环支持(MCS)、高度紧急心脏移植、心脏移植和高钙血症等。

结果:
这些受试者们最初的25OHD平均水平<40 nmol/L,结果显示:服用安慰剂的患者仍保持约40 nmol/L,而服用维生素D的患者中25OHD平均水平约为100 nmol/L。服用维生素D(19.6%;n=39)或安慰剂(17.9%;n=36)的患者死亡率并无差异(风险比(HR):1.09;95%置信区间(CI):0.69-1.71;P=0.726)。然而,与服用安慰剂(9.0%,n=15)的患者相比,服用维生素D的患者对MCS植入物的需求更大(15.4%,n=28)(HR:1.96;95% CI:1.04-3.66;P=0.031)。组间的其他次要临床终点相似。高钙血症发生率分别为:服用维生素D组为6.2%(n=10);服用安慰剂为3.1%(n=5)(P=0.192)。

结论:
由此可见,每天服用4000 IU维生素D并不能降低晚期心衰患者的死亡率,但与MCS植入物的需求有很大关系。对于长期补充高剂量维生素D的人来说值得谨慎。


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    2017-08-27 zhaojie88
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    2017-08-27 slcumt

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