Circulation:长期补充n-3脂肪酸是否可改善新发心肌梗死的老年患者的临床预后?

2021-02-09 Nebula MedSci原创

大量摄入深海n-3多不饱和脂肪酸(PUFA)与心血管事件风险降低有关

大量摄入深海n-3多不饱和脂肪酸(PUFA)与血管事件风险降低有关;但是,这在新发急性心肌梗死(AMI)患者中尚未得到证实。老年患者心肌梗死后心血管风险特别高,但很少有试验专门针对这一群体。在这一易感群体中,Omega-3脂肪酸具有减少心血管事件的潜力,且副作用少。目前有这样一假设,给幸存的AMI老年患者的二级标准预防措施中每日添加1.8g n-3 PUFA,可以降低随后随访2年中的心血管事件风险。

在OMEMI试验(Omega-3脂肪酸用于心肌梗死老年患者)是一项多中心的随机临床试验,给予近期(2-8周)发生AMI的70-82岁患者的标准治疗中添加1.8g n-3 PUFA(930mg 二十碳五烯酸和660mg docosohexaenoic酸)或安慰剂(玉米油)。主要终点是2年后的非致命性AMI、计划外的血管重建、卒中、全因死亡率、心衰住院的复合结局。次要终点是新发房颤。安全性预后是大出血。血清脂肪酸作为粘附的生物标志物。

通过血清脂肪酸测量评估依从性

总体上,共1027位患者被随机分组。1014位患者的随访数据可用,被纳入意向治疗分析。纳入分析的患者平均75岁(SD 3.6),294位(29%)患者为女性,平均甘油三酯水平为111.4±61.9 mg/dL。

主要终点

n-3 PUFA组和安慰剂组的主要终点发生率分别为21.4%(108例) vs 20%(102例;风险比 1.08,95%CI 0.82-1.41, p=0.60);次要终点的发生率分别为7.2%(28例)vs 4.0%(15例;1.84 0.98–3.45, p=0.06)。

次要终点

n-3 PUFA组患者的二十碳五烯酸和docosohexaenoic酸水平的中位变化量分别为+87%和16%,而安慰剂组二十碳五烯酸和docosohexaenoic酸水平的中位变化量分别为-13%和-8%。n-3 PUFA组和安慰剂组中分别发生了54例(10.7%)和56例(11.0%)大出血(p=0.87)。在每个方案分析中都发现了类似的结果(n=893)。

总之,该研究结果显示,每日采用1.8g n-3 PUFA治疗2年之久的AMI老年患者的临床事件未有明显减少

原始出处:

Are Annesonn Kalstad, et al. Effects of n-3 Fatty Acid Supplements in Elderly Patients After Myocardial Infarction. Circulation. 2021;143:528–539

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    2021-02-09 yangchou

    好文章,谢谢分享。

    0

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