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JAHA:黑人和白人成人经皮冠状动脉介入术后双重抗血小板治疗后的出血风险

2022-09-12 MedSci原创 MedSci原创

黑人和白人患者出院后双抗血小板治疗相关出血的风险无显著差异。两组出血风险评分相似。

经皮冠状动脉介入治疗后双重抗血小板治疗可减少心肌梗死,但增加出血风险。黑人患者出血的风险可能更高,但是原因不明。在黑人患者中,出血风险评分尚未得到验证。

近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,研究人员评估了黑人和白人患者出血风险的差异,以及预测支架植入患者及后续双重抗血小板治疗中出血并发症的表现,支架植入患者不坚持抗血小板方案的模式,以及两组之间的高出血风险评分差异。

这是一项单中心前瞻性研究,研究对象为接受经皮冠状动脉介入治疗的患者(2014-2019年),并随访1年。结果为出院后出血学术研究联盟2~5级出血。此外,研究人员报告了发病率。Cox比例风险模型评估了黑人种族对出血的影响,并在19个先验变量中确定了出血的预测因子。研究人员采用哈勒尔一致性指数对黑人和白人患者的3种风险评分分别进行评估。

在1529名纳入的患者中,342名(22.4%)自称为黑人。黑人患者未调整出血率为22.7/100人年,白人为16.3/100人年(风险比为1.41[95%CI为1.00-2.00],P=0.052)。预测出血的因素包括年龄、肾小球滤过率<30ml/min/1.73m2、既往出血、替格瑞洛或普拉格雷的使用以及抗凝药物的使用。在黑人和白人患者中,C‐指数分别为:预测支架植入患者出血并发症和随后双重抗血小板治疗的C‐指数分别为0.644和0.600(均P<0.001),预测支架患者抗血小板治疗方案不依从的C‐指数分别为0.620和0.612(分别P=0.003和P<0.001),预测高出血风险的C‐指数分别为0.600和0.598(分别P=0.006和P<0.001)。

由此可见,黑人和白人患者出院后双抗血小板治疗相关出血的风险无显著差异。两组出血风险评分相似。

原始出处:

Brittain Heindl.et al.Risk of Postdischarge Bleeding From Dual Antiplatelet Therapy After Percutaneous Coronary Intervention Among US Black and White Adults.JAHA.2022.https://www.ahajournals.org/doi/10.1161/JAHA.121.024412

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    2022-09-14 zhaohui6731
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