在心力衰竭亚型中释放右心室应变的预后潜力
Aly Saad1, Mohammad Abdelhady1, Loai Ali AbdulHadi Attia2
1Department of Cardiovascular Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
Journal of cardiovascular echography
|September 15, 2025
概括
右心室全球纵向应变 (RV GLS) 有效预测心力衰竭 (HF) 患者的不良结果. -14.7%的截止值显示了风险分层和指导各种高频类型的干预措施的前景.
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.
- 心脏衰竭研究研究
背景情况:
- 右心室 (RV) 功能对于各种病因的心力衰竭 (HF) 预后至关重要.
- 越来越多地认识到RV功能障碍对HF的影响,包括保留 (HFpEF),中程 (HFmrEF) 和减少射出分数 (HFrEF).
研究的目的:
- 评估右心室全球纵向应变 (RV GLS) 作为HF患者的早期和敏感预测结果.
- 评估RV GLS在不同高频子类型的预测值,按射出分数 (EF) 分类.
主要方法:
- 对100名高压患者进行前性研究,分为HFpEF,HFmrEF和HFrEF组.
- 标准化心声回声评估,包括RV GLS测量.
- 由主要心脏不良事件 (MACE) 和功能状况恶化定义的结果.
主要成果:
- 在HF组中,RV GLS显著不同,与HFpEF和HFmrEF相比,在HFrEF患者中明显较低.
- 在预测不良结果方面,RV GLS的灵敏度为75%,特异性为69.12%.
- 确定了RV GLS的-14.7%的切断值.
结论:
- RV GLS是预测心力衰竭患者不良结果的可靠标志物.
- 确定的RV GLS截止值为-14.7%,有助于风险分层.
- RV GLS为HF管理中的及时干预策略提供了临床实用性.
相关概念视频
01:20Mitral Regurgitation I: Introduction
423
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
423
01:29Heart Failure II: Pathophysiology
734
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
734
01:17Pathophysiology of Heart Failure
3.0K
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
3.0K
01:30Heart Failure IV: Classification and Diagnostic Evaluation
323
Heart failure can be classified in various ways, with the most common classifications based on physical activity limitations, disease progression, severity, and treatment strategies.The Functional Classification of Heart Failure divides patients into four categories based on physical activity limitation due to symptom burden.Class I: Patients in this class have cardiac disease but no physical activity limitations. Ordinary activities like walking, climbing stairs, or routine tasks do not cause...
323
01:22Mitral Stenosis I: Introduction
483
Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
483
01:29Cardiomyopathy III: Hypertrophic Cardiomyopathy
414
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
414