scispace - formally typeset
Open AccessJournal ArticleDOI

Electrical Stimulation of the Heart in Patients with Ventricular Tachycardia

Hein J. J. Wellens, +2 more
- 01 Aug 1972 - 
- Vol. 46, Iss: 2, pp 216-226
Reads0
Chats0
TLDR
The results favor reentry as the causal mechanism for the tachycardias in patients who suffered from recurrent attacks of ventricular tachycardsia.
Abstract
The initiation and termination of tachycardias were studied in five patients who suffered from recurrent attacks of ventricular tachycardia. In four, coronary artery disease with old myocardial infarction was present. A ventricular tachycardia could be initiated in all patients by a single right ventricular premature beat given during regular driving of the right ventricle. The tachycardia could be terminated by a single right ventricular premature beat, or two right ventricular premature beats given in close succession. In four of our patients an early right ventricular premature beat was followed by the next QRS complex of the tachycardia after an interval shorter than compensatory. Our results favor reentry as the causal mechanism for the tachycardias in our patients. Possible pathways for circus reentry leading to ventricular tachycardia can theoretically be composed of (1) the bundle branches, (2) Purkinje fibers with or without adjacent ventricular myocardium, (3) infarcted or fibrotic ventricular tissue, and (4) combinations of (1), (2), and (3).

read more

Citations
More filters
Journal ArticleDOI

Recurrent sustained ventricular tachycardia. 1. Mechanisms.

TL;DR: It is concluded that endocardial ventricular mapping demonstrates the limitations of the surface electrocardiogram in localizing the site of origin of ventricular tachycardia.
Journal ArticleDOI

Recurrent sustained ventricular tachycardia 3. Role of the electrophysiologic study in selection of antiarrhythmic regimens.

TL;DR: This study suggests that serial EPS provides rapid identification of successful antiarrhythmic therapy and can predict in which patients conventional therapy would be ineffective, thereby identifying patients requiring more aggressive modes of therapy.
References
More filters
Journal ArticleDOI

Catheter Technique for Recording His Bundle Activity in Man

TL;DR: The use of this recording technique in man will facilitate diagnostic interpretation of the electrocardiogram and can be used in various investigations of atrioventricular and intraventricular conduction in man.
Journal ArticleDOI

The Role of Premature Beats in the Initiation and the Termination of Supraventricular Tachycardia in the Wolff-Parkinson-White Syndrome

TL;DR: In four patients with WPW syndrome atrial and ventricular premature beats were induced and the changes in form of the ventricular and atrial complexes were studied, results suggest that a circus movement involving the atria, the normal atrioventricular conduction system and the Kent bundle is present.
Journal ArticleDOI

Conduction of the Cardiac Impulse

TL;DR: The results prove that conduction delays great enough to permit re-entry can occur in short segments of Purkinje fibers subjected to high K+.
Journal ArticleDOI

The mechanism of supraventricular tachycardia.

TL;DR: The electrophysiologic behavior of SVT in these patients strongly suggests that the mechanism responsible for paroxysmal supraventricular tachycardia is atrial reentry utilizing the A-V conducting system.
Journal ArticleDOI

Aberrant A-V Impulse Propagation in the Dog Heart: A Study of Functional Bundle Branch Block

TL;DR: Excessive delay and configurational change of ventricular responses to atrial premature beats, previously attributed to dissociation within the A-V node, were shown to be due to functional block of the right bundle branch.
Related Papers (5)