wide QRS tachycardiaUnroofed coronary sinus (UCS) is a congenital heart disease characterized by defects in the formation of the coronary sinus. UCS usually manifests as dyspnea on effort, fatigue, or palpitation. However, here, we present a case of a 53-year-old female whose presentation was...
若起搏时导线电极记录的局部心室电图的起点比希氏束上的V波提前,且起搏的QRS波与自身窦性搏动的QRS波相似,这个部位便是右心室流入道间隔部位。 19. sinus的近义词 19. Action potentials were recorded from the isolated SAN with microelectrode technique. It was found:(1) CGRP (1 nmol/L) had no effect...
An ECG tracing from someone with a third-degree AV block is best described as a tracing with a: a. 1:1 ratio of P waves to QRS complexes b. 1:1 ratio of T waves to QRS complexes c. 1:2 ratio of P waves to QRS complexes d. 2:1 ratio of P...
Evaluation of a QRS scoring system for estimating myocardial infarct size The ability of an independently developed QRS point score to estimate the size of infarcts predominantly within the anterior third of the left ventricular ... Christopher J. Freye MD a,Nancy B. Wagner BA a,Catherine M. ...
A common approach to QRS detection is ba... F Chiarugi,V Sakkalis,D Emmanouilidou,... - Computers in Cardiology 被引量: 38发表: 2007年 Confronting a cardiovascular system model with heart rate and blood pressure data The effect of respiratory sinus arrhythmia (RSA) is introduced using a ...
(SA) reentrantSVT. CSM can be helpful to diagnose the atrial rhythm during atachycardiaby producingAV block. For example, CSM-induced AV block can allowatrial flutter(AFL) waves to be seen. CSM may also be helpful to cause ventriculoatrial conduction block when there is a wideQRS complex...
AV block is localized within the AVN, is associated with a narrow QRS escape rhythm, and is generally benign. The prevalence of vagally mediated AV block is unknown. Not infrequently, it is accidentally encountered as an asymptomatic event during cardiac monitoring, occurring more often during the...
Wide complex tachycardia with atrioventricular dissociation and QRS morphology identical to that of sinus rhythm: a manifestation of bundle branch reentry All patients had had a previous myocar-dial infarction and had a dilated left ventricle. Conclusion—The presence of (a) wide complex extrasystoles...
Wide complex tachycardia with atrioventricular dissociation and QRS morphology identical to that of sinus rhythm: a manifestation of bundle branch reentry. To determine the features that distinguish bundle branch reentry (BBR) ventricular tachycardia from a supraventricular tachycardia with aberration on the...
Third-degree AV block, or complete heart block, is characterized by consistent electrical and mechanical dissociation between the atrial and ventricular rates (Fig. 38-6,D). ECG analysis shows P waves at one rate and wide QRS complexes at a separate rate. As with other forms of heart block...