QRS Complex A combination of the Q wave, R wave and S wave, the “QRS complex” represents ventricular depolarization. This term can be confusing, as not all ECG leads contain all three of these waves; yet a “QRS complex” is said to be present regardless. For example, the normal QRS...
The interval corresponding to the earliest 20 to 30 ms of the QRS complex, directed rightward and anteriorly, represents more than septal depolarization, which means that this component of the QRS complex should not be referred to as “septal depolarization.” The major ventricular forces are ...
ventricular arrhythmiaFragmented QRS (frQRS) complex, with various morphology, has been recently described as a diagnostic criterion of arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D). However, there are little data regarding the prognostic role of frQRS in these patients. Therefore, ...
作者: Consequently,preoperative polycythemia,ventriculotomy,and ventricular arrhythmias 摘要: Tetralogy of Fallot (TOF) is a congenital heart disease frequently treated by surgical repair to relieve symptoms and improve survival. However, despite the performing of an optimal surgical repair, TOF patients ...
研究表明,10%～40%的高血压患者合并有左心室肥大(left ventricular hypertrophy,LVH),从而引起心肌结构重塑。碎裂QRS波(fragmented QRS complex,fQRS)是心脏电信号通过异常心肌组织时产生传导延迟而引起的心电图学改变,表现为QRS波群升...
Thus, signal averaging of the surface QRS complex is a useful noninvasive technique for selecting patients with syncope of unknown origin who should undergo programmed ventricular stimulation.Stephen L. Winters and Debra Stewart and J. Anthony Gomes...
The aim of this work was to undertake a paper of all studies conducted to assess the impact of QRS duration on the development of life-threatening ventricular arrhythmias in repaired TOF subjects. QRS complex corresponds to the depolarization of the right and left ventricles. Duration of the ...
A CASE OF SHORT PR INTERVAL AND PROLONGED QRS COMPLEX WITH A PAROXYSM OF VENTRICULAR TACHYCARDIA 来自 NCBI 喜欢 0 阅读量: 30 作者:MJ Klainer,HH Joffe 摘要: In 1930 Wolff, Parkinson and White called attention to a syndrome of "bundle branch block with short PR interval" occurring in ...
A central feature of the electrocardiogram (ECG) is the QRS complex, reflecting ventricular depolarization. Abnormalities in the duration and amplitudes of the QRS complex are indicative of (early) cardiac pathology, including disorders of the conduction system and cardiac hypertrophy1,2,3. Abnormal ...
1960 年Pick 和Langendorf 提出了区分室上性心动过速和室性心动过速。一直以来,心电图宽QRS 波群心动过速(wide QRS complex tachycardias,WCT)的鉴别诊断仍然是一项极具挑战性的工作。 WCT 是指QRS 时间≥120 ms 连续出现3 次及以上、频率>1...