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左心房应变参数用于预测心房动患者左心房压升高的情况

Ying Xu¹, Jia-Wei Zhou¹, Bo Su¹

¹Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, China.

Echocardiography (Mount Kisco, N.Y.)

|July 9, 2024

概括

左心房应变参数有效地识别心房动患者左心房压力升高的情况. 与传统方法相比,结合这些菌株参数的新算法提供了更好的诊断准确性.

科学领域:

心脏病学心脏病学
心声回声图 (Echocardiography) 是一种心声回声图.
心脏生理学心脏生理学

背景情况:

升高的左心房压力 (LAP) 是心房动 (AF) 病理生理学的重要因素.
准确评估LAP对于管理AF患者至关重要,特别是那些经历了导管切除的患者.
传统的心声回声学方法在精确确定升高的LAP方面存在局限性.

研究的目的:

评估左心房 (LA) 应变参数在区分LAP升高患者与LAP正常患者的有效性.
为了比较LA菌株参数的诊断性能与用于高LAP检测的常规心声学指数.
开发和验证使用LA菌株参数的新型算法,以改善AF中的LAP评估.

主要方法:

一项前性研究涉及142名非膜AF患者,他们接受了第一次导管切除.
摘除前的评估包括传统心声回声和斑点追踪心声回声 (STE) 用于LA菌株分析.
在导管切除过程中侵入性LAP测量是将患者分为正常 (<15 mmHg) 和升高 (≥15 mmHg) LAP组的黄金标准.

主要成果:

与正常的LAP组相比,患有LAP升高的患者表现出明显减少的LA储压力 (LASr) 和增加的LA填充指数和LA刚度指数.
LASr,LA填充指数和LA刚度指数被确定为LAP升高的独立预测指标.
拉拉菌株参数显示诊断准确度 (AUC 0.794-0.819) 与传统心声回声学参数相当或高于.
一个新的算法结合了LASr,LA刚度指数,LA填充指数和LA排空分数,在区分高LAP时获得了高精度 (AUC0.880).

结论:

LA菌株参数是预测AF患者LAP升高的有价值工具,其诊断性能与传统心电回声学相比并非劣.
结合LA菌株参数和传统心声回声测量的新算法显著提高了AF中LAP升高的诊断效率.
这些发现支持将先进的LA菌株分析纳入常规临床实践,以更好地管理AF.

关键词:

心房动是心房动的一种.左心房的压力是左心房的压力左心房应变是左心房应变.斑点跟踪回声心脏图谱斑点跟踪回声心脏图谱

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