无维度指数和跨膜流量率在大动脉狭窄症风险分层中的综合值
Mayooran Namasivayam1, Timothy W Churchill2, Romain Capoulade3
1Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Department of Cardiology, St. Vincent's Hospital, and Heart Valve Disease and Artificial Intelligence Laboratory, Victor Chang Cardiac Research Institute, Sydney, New South Wales, Australia; Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
The American journal of cardiology
|December 16, 2023
概括
评估大动脉狭窄 (AS) 的严重程度是复杂的. 无维指数 (DI) 和跨膜流量率 (Q) 的联合使用改善了AS患者的死亡率预测.
科学领域:
- 心脏病学 心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 膜心脏疾病 膜心脏疾病
背景情况:
- 大动脉狭窄 (AS) 由于严重程度指标不一致,在准确的表型和预后方面存在挑战.
- 流动动态对于精确的AS严重性评估至关重要.
研究的目的:
- 调查无维指数 (DI) 和跨膜流量 (Q) 在中度至重度AS患者的预后意义.
- 确定DI和Q组合评估是否提高了AS中的风险分层.
主要方法:
- 分析了两个独立的纵向注册中度至重度AS患者 (n=1,104和n=939).
- 使用卡普兰-梅尔和多变量考克斯模型对死亡率预测的评估.
- 基于DI (<0.25) 和Q (≤210毫升/秒) 的分类,以确定高风险组.
主要成果:
- 无论是DI还是Q类,都显著预测了初级队列中的死亡率 (p <0.001).
- 低DI和低Q的组合确定了死亡风险最高的群体.
- 验证队列证实了这些发现,具有相似的统计学意义 (p <0.001和p <0.01).
结论:
- 无维指数 (DI) 和跨膜流量 (Q) 的联合评估在大动脉狭窄症中提供了显著的预后价值.
- 在AS评估中更广泛地采用DI和Q可以提高诊断和预后能力.
- 这种方法有助于更好的风险分层和对大动脉狭窄的患者管理.
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