左心房扩大的无创识别：心电图和超声心动图测量的比较。
The non-invasive recognition of left atrial enlargement: comparison of electro- and echocardiographic measurements.
作者信息
Ikram H, Drysdale P, Bones P J, Chan W
出版信息
Postgrad Med J. 1977 Jul;53(621):356-9. doi: 10.1136/pgmj.53.621.356.
The aim of this study was to compare the ability of electro- and echocardiography to detect enlargement of the left atrium. Seventy-four patients, divided into three groups (eighteen normal, thirty-six valvular disease, twenty hypertension and/or coronary artery disease) were studied. The P wave terminal force in lead V1 (PTF-V1) was measured from a standard 12 lead electrocardiogram, and the internal left atrial dimension (LAD) was measured from time-motion echocardiograms. Linear regression analysis showed a small but significant linear correlation between PTF-V1 and LAD (r = 0-32, P less than 0-01). Both methods would separate patients with diseases known to cause left atrial enlargement from normals, but echocardiography showed greater "specificity" (100% v. 94+) and "sensitivity" (75% v. 67%). It was much superior to the ECG in detecting milder grades of left atrial enlargement and for following serial changes.
本研究的目的是比较心电图和超声心动图检测左心房扩大的能力。对74例患者进行了研究，这些患者被分为三组（18例正常、36例瓣膜病、20例高血压和/或冠状动脉疾病）。从标准12导联心电图测量V1导联的P波终末电势（PTF-V1），并从时间-运动超声心动图测量左心房内径（LAD）。线性回归分析显示PTF-V1与LAD之间存在小但显著的线性相关性（r = 0.32，P < 0.01）。两种方法都能将已知会导致左心房扩大的疾病患者与正常人区分开来，但超声心动图显示出更高的“特异性”（100%对94%以上）和“敏感性”（75%对67%）。在检测较轻程度的左心房扩大以及跟踪连续变化方面，超声心动图比心电图优越得多。
Zotero 插件