Lancet:利伐沙班联用阿司匹林可显著降低稳定型冠心病患者心血管风险

2017-11-13 zhangfan MedSci原创

研究认为,对于稳定型冠心病患者,相比于阿司匹林单独给药,利伐沙班联合阿司匹林可显著降低心血管事件的发生率和死亡率,但同时患者的出血风险略有增加

冠状动脉疾病是世界范围内最主要的致死因素之一,是血小板和凝血蛋白激活引起的急性血栓性事件。近日研究人员考察了Xa因子抑制剂与阿司匹林联用对稳定型冠心病患者心脑血管事件的预防效果。

研究在33个国家,602个医疗中心开展,稳定的冠状动脉疾病或外周动脉疾病患者参与,患者在过去20年中有心肌梗死、多支冠状动脉疾病、稳定或不稳定心绞痛、既往多血管经皮冠状动脉介入治疗、或多血管冠状动脉旁路移植手术史。患者随机服用利伐沙班(2.5mg,每日2次)+阿司匹林(100 mg每日1次)、利伐沙班(5mg,每日2次)或阿司匹林(100 mg每日1次)。研究的主要终点是心肌梗塞、中风或心血管死亡的复合终点。

总计24824名患者参与研究。研究发现联合治疗组相比于阿司匹林单独用药可显著降低主要终点的发生率 (347/8313 [4%] vs 460/8261 [6%];HR,0.74,95% CI 0.65-0.86, p<0·0001),但利伐沙班单独给药相比于阿司匹林单独给药不能显著降低主要终点的发生率。(411/8250 [5%] vs 460/8261 [6%]; HR,0.89, 95% CI 0.78-1.02, p=0.094)。联合治疗以及利伐沙班单独给药组出血事件的发生率更为频繁(3% vs 3% vs 2%),主要的出血位点是肠胃道出血。利伐沙班联合阿司匹林可显著降低患者的死亡率(262/8313 [3%] vs 339/8261 [4%];HR 0.77,95% CI 0.65-0.90,p=0.0012).

研究认为,对于稳定型冠心病患者,相比于阿司匹林单独给药,利伐沙班联合阿司匹林可显著降低心血管事件的发生率和死亡率,但同时患者的出血风险略有增加。

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    2018-08-26 howi
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