在患有心房的患者中通过电解剖绘图进行心房重塑之间的相似之处和差异的分析
1Division of Cardiology, Xuzhou Central hospital, 199 South Jiefang Road, Xuzhou, 221009, Jiangsu, China.
Cardiovascular engineering and technology
|August 15, 2025
概括
左心房 (LA) 中的广泛的低电压区域 (ELVA) 预测了抽除术后心房 (AF) 的复发. 了解LA和右心房 (RA) 改造对于改善AF患者的移除疗效至关重要.
科学领域:
- 电子生理学 电子生理学
- 心脏病学 心脏病学
- 医疗成像医学成像
背景情况:
- 心房动 (AF) 是一种与心房重塑相关的常见心律失常.
- 左心房 (LA) 和右心房 (RA) 的改造影响了AF的导管切除的成功.
研究的目的:
- 在AF患者中研究LA和RA重塑之间的关联.
- 为了确定心房改造对导管切除疗效的影响.
主要方法:
- 在271名经过第一次导管切除的AF患者中进行了双腹3D电解剖绘图 (3D-EAM).
- 低电压区域 (LVAs) 被定义为双极电压<0.5mV,广泛的LVAs (ELVAs) 占心房区域的≥10%.
- 用多变量逻辑和考克斯回归分析了LVAs的预测因素及其与废除结果的关联.
主要成果:
- 与LA相比,RA表现出更大的体积,更长的总激活时间和更高的最大电压.
- 在LA地区,LVAs和ELVAs的流行明显高于RA地区.
- 广泛的LA LVA (ELVA) 被确定为切除后AF复发的唯一独立预测因子.
结论:
- 在LA和RA重塑特征以及它们在AF患者之间的相关性方面存在显著差异.
- 在LA和RA之间,LVAs的患病率和预测因素有所不同.
- 广泛的LA改造,特别是ELVA,是影响AF管理中切除成功的关键因素.
更多相关视频
相关概念视频
Imaging Studies for Cardiovascular System I:Echocardiography
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Imaging Studies for Cardiovascular System III: X-Ray
The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
Imaging Studies for Cardiovascular System V: CT
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Mitral Stenosis II: Clinical features and Diagnostic Tests
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...


