在患有大动脉狭窄症的患者中出现超正常的左心室射出分数的风险
Naoya Inoue1,2, Hayato Ohtani3, Shuji Morikawa1,2
1Department of Cardiology, Chutoen General Medical Center, Kakegawa, Shizuoka, Japan.
Clinical cardiology
|March 12, 2024
概括
与正常LVEF相比,中度大动脉狭窄症 (AS) 患者的超正常左心室射出分数 (snLVEF) 增加了心力衰竭住院的风险. 这一发现对于理解AS预后至关重要.
科学领域:
- 心脏病学 心脏病学
- 心脏成像 - - 心脏成像
- 膜心脏疾病 膜心脏疾病
背景情况:
- 在患者中观察到心血管事件的增加 超正常左心室喷射分数 (snLVEF).
- 在大动脉狭窄 (AS) 中snLVEF的预后影响,特别是中度AS,仍然不完全理解.
研究的目的:
- 研究中度或重度大动脉狭窄症患者中snLVEF (≥50%) 的预后影响.
- 评估LVEF类别与死亡率和心力衰竭 (HF) 住院治疗结果之间的关联.
主要方法:
- 对226名中度或重度AS和LVEF>50%的患者进行了回顾性分析.
- 患者被分为正常的LVEF (nLVEF,50%-65%) 和超正常的LVEF (snLVEF,>65%).
- 根据大动脉面积分层的AS严重程度 (中度:1.0-1.5厘米2,严重:<1.0厘米2);主要结局:全因死亡率和HF住院.
主要成果:
- 在四组 (中度/重度AS与nLVEF/snLVEF) 的初级复合结果 (死亡率和HF住院) 中没有显著差异.
- 经过调整后的分析显示,中度AS与正常LVEF (m-nLVEF) 相比,中度AS与超正常LVEF (m-snLVEF) 的HF住院治疗风险降低了59%.
- 与m-snLVEF相比,正常LVEF (s-nLVEF) 的严重AS和超正常LVEF (s-snLVEF) 的严重AS显示HF住院风险增加.
结论:
- 与正常LVEF患者相比,中度AS和超正常LVEF患者面临心力衰竭住院的风险更高.
- 在中度AS中超正常LVEF的预后影响需要进一步调查和临床考虑.
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