在高血压患者中早期检测左心房功能障碍:Speckle追踪成像的作用
La Tunisie medicale
|August 8, 2023
概括
高血压会损害左心房 (LA) 功能,特别是储和导管应变,甚至在LA扩大明显之前. 斑点追踪回声心脏学可以检测LA菌株的这些早期变化.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 高血压研究 高血压研究
背景情况:
- 系统性高血压是一个全球性的健康问题,与左心房 (LA) 功能受损有关.
- 通过斑点跟踪回声心脏学分析心肌变形,为评估心房功能提供了一种有前途的方法.
研究的目的:
- 在高血压患者中使用斑点跟踪回声心脏学来研究左心房纵向应变的早期变化.
- 识别高血压中明显结构变化之前的LA功能中的微妙变化.
主要方法:
- 用斑点追踪回声心脏图谱评估了109名高血压患者和50名对照患者的LA菌株.
- 测量的关键参数包括在储,管道和收缩阶段的峰值心房纵向应变和应变率,以及达到峰值应变的时间.
主要成果:
- 与对照组相比,高血压患者表现出LA储和导管功能受损 (两者p<0.000).
- 尽管LA的前后直径正常,但高血压患者的LA最大和最小体积增加 (分别为p=0.01和p=0.001).
- 在高血压患者 (p=0.05和p=0.04分别) 观察到储水期和腹痛持续时间的峰值应变时间显著增加.
结论:
- 在储和导管期间,左心房纵向应变在高血压患者中受到损害,无论LA的正常大小如何.
- 斑点追踪回声心电图是早期检测高血压中LA菌株异常的一个有价值的工具.
- 这些发现突出了对高血压患者早期干预的潜力,以防止进一步的心脏并发症.
更多相关视频
08:10Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
1.7K
11:50High-frequency High-resolution Echocardiography: First Evidence on Non-invasive Repeated Measure of Myocardial Strain, Contractility, and Mitral Regurgitation in the Ischemia-reperfused Murine Heart
Published on: July 9, 2010
24.2K
相关概念视频
01:23Mitral Stenosis II: Clinical features and Diagnostic Tests
23
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...
23
01:22Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
38
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...
38
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
23
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...
23