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JACC:冠心病植入药物洗脱支架后即刻FFR对临床事件的预测作用及其阈值

2017-05-28 xiangting MedSci原创

DES后FFR与TVF率密切相关。未来研究应更加关注支架置入术后FFR受损的机制和治疗。

这项研究旨在探讨药物洗脱支架(DES)后血流储备分数(FFR)对1至3年靶血管失败(TVF)的预测作用。DES植入后的FFR与临床事件相关。然而,用于预测长期临床事件的DES后FFR阈值仍不明确。

2012年5月至2013年9月期间,9个中心共入组了1,476例DES植入的患者,这些患者最大和基线时的FFR <0.8。DES后重新测量FFR。主要终点是手术后1年的TVF比率。使用受试者工作特征曲线计算TVF的DES后FFR值,然后根据该值对患者进行分类,并随访3年。

截至第一年年底,出现了88(6.0%)例TVFs。DES后FFR≤0.88与TVF强相关。左前降支病变(LAD)、支架长度和支架直径是DES后FFR受损的独立因素,而术后FFR≤0.88是TVF的唯一预测因子,FFR>0.88组40例(4.0%)TVFs,FFR≤0.88组48例(8.0%)TVFs(P=0.001),主要为靶血管血运重建(3.8%vs. 8.8%; p = 0.005)和心脏死亡(0.2%vs. 1.3% ; p = 0.017)。在3年随访期间两组之间的TVF差异维持不变(p = 0.002)。对于LAD病变患者,DES后FFR≤0.905预测1年的TVF。

由此可见DES后FFR与TVF率密切相关。未来研究应更加关注支架置入术后FFR受损的机制和治疗。

原始出处:


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    2018-02-08 hbwxf
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    2017-05-30 jiyangfei
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    2017-05-30 qjddjq

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