在高血压中,左心室机械和心室合与超正常的左心室射出分数
Chong Liu1,2, Wen-Jun Xu1,2, Jia-Wei Tian1,2
1Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Echocardiography (Mount Kisco, N.Y.)
|January 17, 2025
概括
在高血压患者中,左心室射出分数 (snLVEF) 超正常,显示左心室水库和导管功能受损. 这表明snLVEF可能代表高血压心脏病进展的中间阶段.
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.
- 高血压研究 高血压研究
背景情况:
- 超正常的左心室喷射分数 (snLVEF) 是一个异质的群体,预后不同.
- 通过斑点跟踪心声学 (STE) 评估的左心房 (LA) 菌株是公认的预后标志物.
研究的目的:
- 在患有snLVEF的高血压患者中研究LA和左心室 (LV) 机械应变.
- 为了比较不同保存的LVEF类别的菌株参数.
主要方法:
- 追溯分析101名高血压患者的LVEF保存 (≥50%).
- 患者被分为低正常 (lnLVEF),中正常 (mnLVEF) 和 snLVEF 组.
- STE用于测量LV全球纵向菌株 (LVGLS) 和LA菌株 (LASr, LAScd, LASct).
主要成果:
- 与mnLVEF相比,snLVEF患者的相对壁厚较高,但与mnLVEF相比,LVGLS相似.
- 与mnLVEF相比,snLVEF显示了LA储应变 (LASr) 和管道应变 (LAScd) 的降低.
- lnLVEF在所有LA菌株阶段显示出更显著的减少. 在LASr和LVEF之间观察到一个反转的U形关系.
结论:
- 患有snLVEF的高血压患者表现出LA储和导管功能受到损害,尽管保留了LV功能.
- snLVEF可能表明高血压心脏重塑的中间阶段.
- 需要进一步的研究来确定snLVEF中LA菌株的预后价值.
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