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基于计算机断层扫描的冠状动脉光体积与心肌质量比在经过跨导管大动脉置换的患者中:一种用于风险评估的新方法

Wenting Li¹, Ruichen Ren¹, Qingyuan Zhao¹

¹Department of Radiology, Qilu Hospital of Shandong University, Jinan, Shandong, China.

BMC cardiovascular disorders

|April 24, 2025

概括

较低的冠状动脉光量与心肌质量 (V/M) 比率预测了经过过导管大动脉置换 (TAVR) 的患者的主要不良心血管事件 (MACE). 这一发现为TAVR候选人提供了一个新的预后工具.

科学领域:

心血管成像 - 心血管成像
生物医学工程生物医学工程
临床预后临床预后

背景情况:

冠状动脉流层体积与心肌质量 (V/M) 的比率量化了冠状动脉血液供应和心肌氧需求之间的平衡.
评估这种比率的预后值对于接受过导管大动脉置换 (TAVR) 的患者至关重要.

研究的目的:

评估V/M比对接受TAVR的患者主要心血管不良事件 (MACE) 的预测能力.
确定V/M比是否可以作为TAVR后的独立预后标记.

主要方法:

包括接受TAVR的患者,V/M比率是通过冠状动脉计算机断层扫描血管学 (CTA) 计算的.
根据中位数 (33.31 mm3/g) 患者被分为低和高V/M比率组.
主要不良心血管事件 (MACE),包括全因死亡率,中风和心力衰竭住院治疗,使用Kaplan-Meier图和Cox回归进行了跟踪和分析.

主要成果:

与没有经历MACE的患者相比,在经历MACE的患者中观察到较低的平均V/M比率 (26.5vs34.0mm3/g,P<0.001).
低V/M比率组 (≤33.31mm3/g) 显示在TAVR后MACE的风险明显更高 (危险比率:6.14,P=0.018).

结论:

降低V/M比率是TAVR患者MACE的独立预测因子.
V/M比为TAVR群体中的风险分层提供了有价值的定量指标.

关键词:

冠状动脉计算机断层扫描血管图谱.冠状动脉灯光体积的体积.左心室心肌质量质量是左心室心肌质量质量.通过导管更换大动脉门.体积与心肌质量之间的关系

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