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在患有低流动性大动脉狭窄症的患者中,大动脉结的有用性

Nils Sofus Borg Mogensen^1,2,3, Jordi Sanchez Dahl^1,3, Mulham Ali¹

¹Department of Cardiology, Odense University Hospital, Denmark (N.S.B.M., J.S.D., M.A., A.H., R.C.-S., J.E.M., K.A.Ø., M.-A.C.).

Circulation. Cardiovascular imaging

|January 8, 2025

概括

大动脉结石化 (AVC) 预测低流动大动脉狭窄症 (AS) 患者的死亡率. 这种评估对于经典的低流量AS和矛盾的低流量AS的风险分层至关重要.

科学领域:

心脏病学心脏病学
医疗成像医学成像
临床结果研究研究

背景情况:

大动脉结石化 (AVC) 是大动脉狭窄症 (AS) 严重程度和预后的强有力的指标.
在低流量AS中,包括经典的低流量 (CLF) 和矛盾的低流量 (PLF) 亚型中,AVC的预测准确性仍在调查中.

研究的目的:

评估患有CLF-AS和PLF-AS的患者中AVC的预后价值.
确定AVC是否可以准确预测这些特定的低流量AS群体的死亡率.

主要方法:

对641名患有CLF-AS或PLF-AS的患者进行前性研究.
使用多探测器计算机断层扫描对AVC进行评估,并计算AVC比率 (AVCratio).
主要终点是全因死亡率,使用考克斯回归和重新分类方法进行分析.

主要成果:

在调整后,AVCratio与CLF-AS (aHR,1.25) 和PLF-AS (aHR,1.51) 的全因死亡率显著相关.
在死亡率预测方面观察到AVC和AS流量模式 (CLF与PLF) 之间的显著相互作用 (P=0.001).
对死亡率预测的最佳AVCratio值在CLF-AS (≥0.7) 和PLF-AS (≥1) 之间有所不同;AVCratio改善了所有组的预测模型.

结论:

风脉动脉是患有CLF-AS和PLF-AS的患者死亡率的重要预测因素.
应将AVC纳入低流AS患者的风险评估和严重程度评估.
即使是非严重的AS,以AVC表示,也可能与减少喷射分数的患者的存活率较差有关.

关键词:

大动脉门狭窄症大动脉,化冲击的体积冲击的体积冲击的体积幸存率幸存率生存率

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