ω-3脂肪酸减轻急性心肌梗死后左室重构

2016-08-04 MedSci MedSci原创

急性心肌梗死患者接受大剂量的ω-3脂肪酸治疗可减轻患者左室重构、非梗死心肌纤维化及全身性炎症的血清标志物。

随着人们对心血管疾病的认识不断深入以及对健康生活的不断追求,深海鱼油(深海鱼类体内的不饱和脂肪-其他动物性食物中含量较少)对人类健康的作用也不断被大众所认可。今天跟大家讲讲来自于深海鱼油中的ω-3脂肪酸对心血管的影响,尤其是对那些有急性心肌梗死患者的心脏结构和组织特性重塑的作用。

美国波士顿Heydari及其团队在《circulation》上发表了一项关于ω-3脂肪酸与急性心肌梗死的多中心、双盲、安慰剂对照的临床试验结果,该研究纳入了358例急性心肌梗死患者,并将其随机分为两组,其中180例患者服用了6个月的大剂量的ω-3脂肪酸,而另一组178例患者服用安慰剂6个月。通过心脏磁共振成像评估患者治疗前后的心脏结构和组织特征。并以左室收缩容积指数的变化作为主要的研究终点。次要终点包括非梗死心肌纤维化、左室射血分数与梗死面积发生改变。

该研究结果显示,与服用安慰剂患者比较,服用ω-3脂肪酸的患者出现左心室收缩末期容积指数(5.8%P = 0.017)和非梗死心肌纤维化(5.6%P = 0.026)显著降低。这些患者的血红细胞中ω-3指数达到最高四分位数患者比位于最低四分位数相比,左心室收缩末期容积指数减少了13%。此外,服用ω-3脂肪酸的患者血清中全身血管炎症和心肌纤维化标志物水平明显下降。服用高剂量的ω-3脂肪酸治疗没有发生相关的不良心血管事件。

最后该研究指出急性心肌梗死患者接受大剂量的ω-3脂肪酸治疗可减轻患者左室重构、非梗死心肌纤维化及全身性炎症的血清标志物。

原始出处:

Heydari, B.et al. Effect of Omega-3 Acid Ethyl Esters on Left Ventricular Remodeling After Acute Myocardial Infarction: The OMEGA-REMODEL Randomized Clinical Trial. circulation.2016 August 2.134,5,378-91.

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