在心律失常的右心室心肌病症中,右心房菌株的预后值
Jin-Yu Zheng1, Bing-Hua Chen1, Rui Wu1
1Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China.
Insights into imaging
|February 27, 2024
概括
右心房应变参数,包括储应变 (RARS) 和助推应变 (RABS),是心律失常性右心室心肌病 (ARVC) 中心脏不良事件的独立预测因素. 这些措施为ARVC患者提供了超越传统风险因素的增量预后价值.
科学领域:
- 心脏病学 心脏病学
- 心血管成像 - 心血管成像
- 遗传学 遗传学 是一个
背景情况:
- 节律失调的右室心肌病变 (ARVC) 是一种遗传性心脏病.
- 心脏肌肉的纤维脂肪透导致不良心脏事件.
- 人们越来越认识到右心房 (RA) 功能对预后的重要性.
研究的目的:
- 在ARVC患者中分析右心房 (RA) 应变的预后值.
- 为了确定RA菌株参数是否可以预测ARVC中的不良心脏事件.
- 评估RA菌株的增量预测能力.
主要方法:
- 用心磁共振成像 (CMR) 评估了105名ARVC参与者的RA菌株.
- 不良心脏事件被定义为心脏突然死亡,心脏骤停或适当的ICD干预.
- 考克斯回归和卡普兰-梅尔分析评估了RA菌株和终点之间的关联,C指数,NRI和IDI评估了增量值.
主要成果:
- 在经历不良事件的患者中观察到减少了RA菌株参数.
- 损伤的RA储菌株 (RARS) 和助推菌株 (RABS) 与心脏事件的更高风险有关.
- RARS和RABS独立预测了不良事件,改善了传统的风险因素和CMR预测器.
结论:
- 在ARVC中,RA储菌株 (RARS) 和助推菌株 (RABS) 是心脏不良事件的独立预测因素.
- 这些RA菌株参数提供了显著的增量预后价值.
- 心脏病专家应考虑RA菌株评估,以便在ARVC中更好地预测长期结果和临床管理.
相关概念视频
Mitral Regurgitation I: Introduction
1.3K
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...
1.3K
Mitral Stenosis II: Clinical features and Diagnostic Tests
557
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
557
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
1.2K
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
1.2K
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
1.3K
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...
1.3K
Cardiomyopathy III: Hypertrophic Cardiomyopathy
805
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...
805
Cardiomyopathy IV: Restrictive Cardiomyopathy
952
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
952


