Electrophysiological demonstration of concealed conduction in the human atrium.
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چکیده
منابع مشابه
Electrophysiological demonstration of concealed conduction in the human atrium.
In the course of electrophysiological evaluation of six patients with sick sinus syndrome, two patients with chronic conduction system disease and four patients with paroxysmal supraventricular tachycardia or atrial flutter-fibrillation, the phenomenon of concealed conduction within the atrium (At) was repeatedly observed. One pair of intracardiac electrodes was used to deliver electrical stimu...
متن کاملExperimental demonstration of concealed AV conduction in the human heart.
as an accepted method of treatment of StokesAdams disease, it became feasible to produce in the human heart conditions prone to reveal the phenomenon of concealed conduction. Simple experimental procedures can be applied at the bedside without danger or discomfort to the patient and various disturbances of cardiac rhythm can be reproduced at will. Such observations, some of which shed new light...
متن کاملConcealed Conduction
Concealed conduction is a phenomenon which could be rarely seen on the surface of electrocardiography (ECG). The surface ECG must be evaluated carefully for determination of concealed conduction. Because concealed conduction manifests itself in different shape and level. This evaluation could prevent misdiagnosis and unappropriate treatment. In this chapter we want to contribute to understandin...
متن کاملConcealed conduction.
THE CONCEPT of concealed conduction was introduced into electrocardiography to explain a lengthening of, or change in, the refractory period of the atrioventricular conduction system caused either by atrial activity that fails to propagate to the ventricles or by ventricular activity that fails to reach the atria. Standard electrocardiograms do not provide a direct demonstration of the partial ...
متن کاملElectrophysiological properties of the human atrium in atrial fibrillation.
It has been reported that ectopic foci from the pulmonary veins can initiate atrial fibrillation (AF) and can also act as drivers for maintaining AF. However, not all patients with atrial arrhythmias initiate AF. A substrate for atrial propensity to AF is required for AF initiation and maintenance. Thus, we reviewed and discussed mainly the electrophysiological properties observed in AF. Abnorm...
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ژورنال
عنوان ژورنال: Circulation
سال: 1978
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.58.5.940