在严重的初级心肌回中,心声谱衍生的中风体积的预后值
Yoav Granot1,2, Sheizaf Gefen1, Daniel Karlsberg3
1Division of Cardiology, Tel Aviv Medical Center, Faculty of Medicine, Tel Aviv University, 6 Weizmann Street, Tel Aviv 6423906, Israel.
European heart journal. Cardiovascular Imaging
|September 24, 2024
概括
在严重的初级心肌吐中,低于55毫升的中风体积 (SV) 表明心力衰竭住院和死亡的风险更高. 这种测量有助于更好的患者风险分层.
科学领域:
- 心脏病学 心脏病学
- 心血管医学 心血管医学
- 临床心声扫描 临床心声扫描 临床心声扫描
背景情况:
- 创伤体积 (SV) 和SV指数 (SVI) 是心血管疾病的确立预后标志物.
- 严重的初级额头回 (MR) 对患者的治疗结果构成重大风险.
- 准确的风险分层对于管理严重原发性MR患者至关重要.
研究的目的:
- 为了评估中风体积 (SV) 和SV指数 (SVI) 值的预后意义,在患有严重初级心肌吐 (MR) 的患者中.
- 确定特定的SV和SVI水平是否与该患者群体的不良临床结果有关.
主要方法:
- 对283名患有重症原发性MR,左心室大小正常,缩功能正常的患者进行了回顾性分析.
- 预定义的SV (<55,55-70,>70毫升) 和SVI (<30,30-35,>35毫升/米2) 值和结果之间的关联评估.
- 分析的结果包括全因死亡率和心力衰竭 (HF) 住院治疗.
主要成果:
- 低于55毫升的中风体积 (SV) 与更糟糕的结果显著相关,包括增加全因死亡率和心力衰竭住院治疗 (危险比1.8,P=0.016).
- 55至70毫升之间的SV值与不良结果没有显著关联.
- 与正常的SVI相比,在35mL/m2以下的SVI指数 (SVI) 中观察到较差结果的非显著趋势.
结论:
- 在重症初级MR患者中,中风体积 (SV) 低于55毫升是心力衰竭住院增加和全因死亡率的显著预测因素.
- 这种易于获得的回声心脏学参数,SV,可以提高患有初级MR的患者的风险分层.
- 进一步的研究可能会探索SV在指导初级MR治疗决策中的有用性.
相关概念视频
Regulation of Stroke Volume
3.2K
The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
3.2K
Cardiac Output II: Effect of Stroke Volume on Cardiac Output
747
Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
747
Imaging Studies for Cardiovascular System II:Types of Echocardiography
234
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
234


