JACC:缘对缘二尖瓣修复患者瓣叶/瓣环指数对残余二尖瓣返流的影响

2019-12-17 xiangting MedSci原创

MitraClip植入后LAI值与残余MR相关,残余MR与1年死亡率独立相关。

这项研究旨在探讨经皮缘对缘二尖瓣修复后,瓣叶-瓣环不匹配对残余二尖瓣返流(MR)的临床影响。

瓣环扩张是继发性MR的常见特征,在外科二尖瓣修复时需要同时进行瓣环成形术。

研究招募了在波恩心脏中心接受MitraClip植入(雅培血管,圣克拉拉市,加州)的连续性MR患者。残余MR定义为术后MR≥2+,并且根据残余MR将患者分为两组。研究使用术前2维和3维经食道超声心动图计算了瓣叶/瓣环指数(LAI)。检查了1年随访中的全因死亡率。

420例连续性患者中,117例患者(27.9%)存在残余MR≥2+)。残余MR患者的术前LAI明显低于MR<2+的患者(中位数1.14 [四分位间距(IQR):1.07-1.20] vs. 1.18 [IQR1.12-1.29]p<0.001)。多因素分析显示,LAI值与残余MR显著相关(比值比:0.95p <0.001)。1年随访后,残余MR患者的预后明显差于MR<2+患者(估算死亡率为17.4vs. 7.3%;秩和p=0.002),并且存在残余MR1年死亡率独立相关(危险比:2.74 p=0.004)。

MitraClip植入后LAI值与残余MR相关,残余MR1年死亡率独立相关。该指数可作为在缘对缘修复前识别需要进行瓣环成形术患者的有用工具。

原始出处:

Noriaki Tabata. Impact of the Leaflet-to-Annulus Index on Residual Mitral Regurgitation in Patients Undergoing Edge-to-Edge Mitral Repair. JACCCardiovascular Interventions. December 2019.

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    2020-01-07 hbwxf
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    2019-12-19 wwzzly