JACC:TAVR期间预防冠脉阻塞的冠脉保护术

2020-03-27 xiangting MedSci原创

对于冠脉阻塞风险高的TAVR患者,跨冠脉口进行预防性支架植入与中期生存率高和支架血栓形成率低相关。

这项研究目的是探讨在经导管主动脉瓣置换术(TAVR)后冠脉阻塞风险较高的患者中,通过预防性冠脉布线和跨冠脉口支架置入保护冠脉的安全性和疗效。

TAVR后的冠脉阻塞是危及生命的并发症,其手术和短期死亡率较高。

这项研究回顾性收集了2011年4月至2019年2月国际多中心登记中的数据。

236例接受预防性冠脉布线的冠脉保护患者中,143例在瓣膜放置后最终植入了跨冠脉口的支架。3年随访时,接受支架患者的心源性死亡率为7.8%,未接受支架患者的心源性死亡率为15.7%(调整后危险比:0.42;95%置信区间:0.14-1.28;p=0.13)。接受支架患者中有2例明确的支架血栓形成(0.9%),均发生在TAVR“瓣中瓣”手术后。未接受支架的患者中,有4例出现延迟性冠脉阻塞(DCOs)(4.3%),发生在导丝移除后的5分钟至6小时。3例发生在瓣中瓣手术中,1例发生在原发主动脉瓣手术中。75.0%的DCO患者实际经导管瓣膜与受保护冠脉口之间距离<4mm,而30.4%的无DCO患者两者距离<4mm(p=0.19)。

对于冠脉阻塞风险高的TAVR患者,跨冠脉口进行预防性支架植入与中期生存率高和支架血栓形成率低相关。仅使用导丝进行冠脉保护的患者DCO风险相当大。

原始出处:

Tullio Palmerini. Coronary Protection to Prevent Coronary Obstruction During TAVR A Multicenter International Registry. JACC:Cardiovascular Interventions. 23 March 2020.

 

 

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    2021-03-23 病毒猎手

    #TAVR#真火

    0

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    2021-01-26 tomyang96
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    2020-09-11 hbwxf
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