相关实验视频
Updated: Jun 12, 2025

08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
Published on: February 20, 2017
14.3K
在心声回声学中测量的正常和特别小 (<35毫米) 的左心房大小表明中度或严重的左心室缩功能障碍的可能性很低
Mohammad Reza Movahed1,2, Arman Soltani Moghadam1
1University of Arizona Sarver Heart Center Tucson, AZ, USA.
American journal of cardiovascular disease
|September 23, 2024
概括
正常的左心房 (LA) 尺寸是保存左心室 (LV) 缩功能的强有力的指标. 这项研究发现正常LA大小的负预测值为97.5%,证实了其在心脏评估中的临床意义.
科学领域:
- 心脏病学 心脏病学
- 心声回声图 (Echocardiography) 是一种心声回声图.
- 心脏生理学 心脏生理学
背景情况:
- 左心房 (LA) 尺寸受到心脏病理的影响,如心力衰竭和衰老.
- 在LA扩大和左心室 (LV) 功能障碍之间存在已知的关联.
- 正常LA大小在预测LV缩功能的临床实用性需要进一步研究.
研究的目的:
- 为了评估正常的LA大小对LV缩功能的负预测值.
- 评估LA尺寸与LV缩功能障碍的严重程度之间的关系.
- 分析一大群接受诊断性心声回声扫描的患者,以了解这些关联.
主要方法:
- 追溯性队列研究,利用1984年至1998年的心声学数据.
- 分析包括22390个心声回声图,以使用M模式和2D心声回声图来测量LA大小.
- 患者根据正常 (<40毫米) 与异常 (≥40毫米) LA 尺寸进行分类.
主要成果:
- 55.1%的患者有正常的LA大小;这个群体中只有2.4%的患者表现出异常的LV缩功能.
- 对于任何LV缩功能障碍,正常LA大小的负预测值为97.5%.
- 对于中度或重度的LV缩功能障碍,正常LA大小的负预测值分别为99.3%和99.4%.
结论:
- 正常的LA大小是维护LV缩功能的高度可靠的指标.
- 对LA大小的心声测量提供了重要的预后信息.
- 正常的LA大小可以有效排除显著的LV缩功能障碍.
相关概念视频
Cardiovascular System Abnormal Findings II: Auscultation
104
Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:
Abnormal Heart Sounds
Gallops:
104
Imaging Studies for Cardiovascular System I:Echocardiography
299
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,...
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
299
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

