Eur Heart J:TAVR后新发左束支阻滞与中危患者的长期临床结局不良相关

2019-04-25 xiangting MedSci原创

新发LBBB与2年的不良临床结局相关,其中包括全因和心血管死亡率、再入院、新的起搏器植入和左心室收缩功能恶化。

经导管主动脉瓣置换术(TAVR)现已成为症状性严重主动脉瓣狭窄手术中危患者的既定疗法。TAVR后新发左束支传导阻滞(LBBB)的临床影响仍存在争议,并且尚未在中危患者中进行过研究。因此,这项研究试图在一个大型TAVR中危患者队列中分析与新LBBB相关的结局。

在PARTNER II试验和S3中危登记中共有2043例患者接受了TAVR,并存活至出院。排除基线传导紊乱、预先安装永久性起搏器(PPM)以及指数住院期间安装新PPM的患者。比较了出院时伴和不伴持续性、新发LBBB患者的2年临床结局,并进行多因素分析以确定死亡率的预测因子。

在1179例中危患者中,出院时179例患者(15.2%)出现新发LBBB。新发LBBB患者与无LBBB患者相似,除了糖尿病更常见和更多使用SAPIEN 3 vs.SAPIEN XT治疗。2年时,新发LBBB与全因死亡率(19.3%vs.10.8%,P=0.002)、血管死亡率(16.2%vs. 6.5%,P<0.001)、再入院和新PPM植入的比例增加有关。通过多因素分析,新发LBBB仍然是2年全因死亡率 [危险比(HR)1.98,95%置信区间(95%CI)1.33,2.96;P<0.001]和血管死亡率的独立预测因子(HR 2.66 95%CI 1.67,4.24;P<0.001)。在1年和2年的随访中,新发LBBB也与左心室收缩功能较差相关。

在来自PARTNER II试验和登记的大型中危患者队列中,无基线传导紊乱或起搏器的患者持续性新发LBBB的发生率为15.2%。新发LBBB与2年的不良临床结局相关,其中包括全因和心血管死亡率、再入院、新的起搏器植入和左心室收缩功能恶化。

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    2019-04-27 zhaojie88
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    2019-04-27 slcumt

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