The ECG interpretative statement "Prol onged QT" means different things to different people. It can be taken as a purely descriptive statement referring to the QT interval beyond a certain threshold. Alternatively, it could be taken to refer to a disease state (eg, congenital long QT syndrome...
关键词学习:ECG - 心电图;cardiac cycle - 心动周期;QT interval - QT间期;LQTS - 长QT间期综合征;QTc - 校正QT间期;Bazett's formula - Bazett公式;QRS complex - QRS复合波;Depolarize - 除极、去极化;Repolarize - 复极化;Cardiac Action Potential - 心肌细胞动作电位;membrane potential - 心肌细胞膜电...
The QT interval was computed by the Modular ECG Analysis System (MEANS). Data were analysed using Cox' proportional hazards model. Participants in the highest quartile of the heart-rate corrected QT interval had about a 70% age- and sex-adjusted increased risk for both all-cause mortality (...
In addition, we sought to determine if a significant difference existed between the means of manual 12-lead ECG versus automated 24-hour ambulatory Holter measures. Spearman's rho correlation coefficient revealed there was little if any correlation between manual 12-lead ECG and automated 24-hour ...
127/53 56. - - - - - 注:"-"为未检测 Note:"-"means not detected 4 分析与讨论 尼丁晕厥[2].随后的研究发现,可致 QT 间期延长的药物非常 4.1 药物致 QT 间期延长 多,涵盖各个系统,如:Ia 类抗心律失常药物(普鲁卡因胺,丙吡 QT 间期延长最严重的后果是诱发 TdP.TdP 是一种多形 胺,奎尼丁),Ⅲ...
The Framingham linear method (QTcFra = QT + 0.154(1-RR) results in more uniform rate correction over a wider range of heart rates [9]. Among these, the most widely used in clinical practice is the Bazzet formula which becomes integrated into computerized ECG acquisition carts and is still...
The most common congenital heart defects are problems with the heart valves and holes in the walls of the heart. Heart Disease Testing: EKG (Electrocardiogram) Your heart's electrical activity can be seen with an EKG (also termed ECG or electrocardiogram). EKGs are tests that provide important...
The electrocardiogram (ECG) represents an essential tool to determine cardiac electrical abnormalities in COVID-19 patients, the effects of anti-SARS-CoV-2 drugs, and potential drug interactions. Smartphone-based heart monitors have increased the spectru
Evaluation of the effect of dopamine and other catecholamines on the electrocardiogram and blood pressure of rats by means of on-line biosignal processing. J Cardiovasc Pharmacol 1980; 2: 777–795. 93 Clementy J, Samoyeau R, Coste P, Bricaud H. Study of the electrophysiological properties ...
Twenty-four hour heart rate and rhythm data were collected by means of ambulatory electrocardiography. Hourly ECG segments were obtained from the 24-hour recordings. Mean heart rate and the mean of 5 QT interval measurements were calculated for each of 479 usable ECG segments. Analysis of ...