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随着气球可扩展的门内TAVR,血液动力学和中期临床结果

Amr E Abbas¹, Tsuyoshi Kaneko², Houman Khalili³

¹Corewell Health East, William Beaumont University Hospital, Royal Oak, MI (A.E.A., T.A.S.).

Circulation. Cardiovascular interventions

|February 9, 2026

概括

跨导管大动脉内更换后较低的排放梯度与减少喷射率和更高的5年死亡率有关. 这凸显了考虑梯度和患者假肢不匹配的重要性,以获得最佳的结果.

科学领域:

心脏病学心脏病学
医疗器械医疗器械
心声回声扫描 (Echocardiography) 是一种心声回声扫描.

背景情况:

用气球可扩展替换过导管大动脉 (TAVR) 后的下排放回声心脏学平均梯度 (<10 mm Hg) 与较低的喷射率和增加的5年死亡率相关.
经过过导管大动脉内替换 (TAV-in-V) 后的平均梯度 (MGs) 和患者假肢不匹配 (PPM) 之间的关系和临床结果需要进一步调查.

研究的目的:

在TAV-in-V手术后,调查回声心脏学平均梯度 (MGs) 和患者与假肢不匹配 (PPM) 之间的关联.
确定MGs对接受TAV-in-V的患者5年死亡率的影响.

主要方法:

在2015年7月至2023年12月期间,使用STS/ACC TAVT注册表对13054名患者进行了TAV-in-V,使用气球可扩展门.
利用调整后的Cox模型与回归线来检查MG和5年死亡率之间的关系.
采用卡普兰-梅尔估计和调整的危险比率来比较不同梯度切线和PPM严重程度的死亡率.

主要成果:

在出院MG和5年死亡率之间观察到非线性关系.
较低的MGs (<10 mm Hg) 与较高的MGs (≥10 mm Hg) 相比,与更高的5年死亡率 (HR,1.15;P=0.024) 和较低的射出分数 (50.4±13.9%) 有关.
严重的PPM和MGs≥20 mm Hg与较不严重的PPM或较低的MGs (≤20 mm Hg) 相比,与更糟糕的5年结果没有显著相关.

结论:

在TAV-in-V后排放MGs<10 mm Hg与减少喷射分数和增加5年死亡率有关,以非线性方式.
整合射出分数,PPM和MG数据对于优化门选择和患者管理至关重要.

关键词:

大动脉门的大动脉门人类人类人类人类人类人类.患者退院的情况.登记处登记处登记处登记处通过导管更换大动脉门.

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