在大动脉反中,左心室纵向应变的区域性损伤
Joana Ferreira1, Liliana Marta2, João Presume2
1Department of Cardiology, Hospital de São Bernardo, Centro Hospitalar de Setúbal, Setúbal, Portugal. joana.jsf@gmail.com.
Journal of cardiovascular imaging
|September 5, 2024
概括
大动脉反 (AR) 中的反喷流可以损害区域心肌应变. 这种区域模式可能表明手术后左心室 (LV) 恢复较差.
科学领域:
- 心脏病学 心脏病学
- 心脏机械学 心脏机械学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 大动脉反 (AR) 显著影响心肌力学.
- 全球纵向菌株 (GLS) 对于评估AR严重程度和预后非常有价值.
- 反喷流对心肌壁的直接影响需要进一步研究区域应变.
研究的目的:
- 为了研究吐喷流对心肌壁的直接影响是否会影响区域纵向应变.
- 为了确定与喷气相关的减压和AR特征之间的关系.
- 评估该区域模式对左心室 (LV) 功能和术后恢复的影响.
主要方法:
- 80名慢性中度/重度AR患者的回顾性研究.
- 定义与喷气相关的纵向应变减轻为冲击段的≥30%减轻.
- 与AR严重程度,LV大小和功能进行比较,具有和没有区域应变损伤;在外科手术子组中分析了术后功能.
主要成果:
- 在43%的患者中发现了区域纵向应变损伤,受影响部分的中位数减少了10个百分点.
- 在外科手术子组中观察到区域损伤的术后减弱.
- 区域性损伤患者在手术后GLS改善较少 (10% vs. 38%改善,P=0.049).
结论:
- 第一个研究将反喷气冲击位置与区域纵向应变损害联系起来.
- 区域模式可能与手术后LV恢复的恶化有关.
- 强调区域菌株评估在AR管理中的重要性.
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