在左心室功能障碍中,左心室纵向功能与左心房应变之间的关联
Björn Östenson1, Elsa Bergström1, Katarina Steding-Ehrenborg1
1Clinical Physiology, Department of Clinical Sciences Lund, Lund University, Skåne University Hospital, Lund, Sweden.
ESC heart failure
|February 19, 2026
概括
左心室 (LA) 储应变受左心室 (LV) 纵向功能在LV功能障碍患者显著影响. 减少LA菌株可能反映了潜在的LV问题,而不是独立的心脏标志物.
科学领域:
- 心脏病学 心脏病学
- 心脏成像 - - 心脏成像
- 生理学 生理学 生理学
背景情况:
- 左心室 (LV) 纵向功能是LV功能障碍的关键预后指标.
- 左心房 (LA) 储和导管应变是新兴的预后标志物.
- 心房和心室之间的合 (LA-LV合) 对于心脏功能至关重要.
研究的目的:
- 使用心脏磁共振 (CMR) 特征追踪量化LV纵向功能和LA菌株之间的关联.
- 为了调查LA菌株是否由LV纵向功能在LV功能障碍中确定.
主要方法:
- 对342名LV功能障碍患者和19名健康对照患者 (HC) 的回顾性分析.
- 使用CMR特征追踪分析LV全球纵向应变 (LV-GLS),LV心房平面位移 (AVPD) 和LA全球纵向应变 (LA-GLS).
主要成果:
- 与HC相比,LV功能障碍组的LA-GLS显著较低 (12±8%与19±7相比,p<0.001).
- 在LA-GLS的减少反映了LV-GLS (-10±5%与19±3,p<0.001) 和LV-AVPD (9±3毫米与15±2毫米,p<0.001) 的减少.
- 在LV-GLS和LA-GLS (r2=0.40) 和LV-AVPD和LA-GLS (r2=0.39) 之间发现了强烈的相关性.
结论:
- 在患有 LV 功能障碍的患者中,LA 储功能 (LA-GLS) 在很大程度上取决于 LV 纵向功能.
- 在某些患者群体中,LA功能可能不能作为整体心脏功能的独立标志物.
- 减少LA功能可能是潜在的LV功能障碍的结果.
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