Electrical Stimulation of the Heart in Patients with Ventricular Tachycardia
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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
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Journal ArticleDOI
ACC/AHA/ESC 2006 guidelines for management of patients with ventricular arrhythmias and the prevention of sudden cardiac death
Douglas P. Zipes,A. John Camm,Martin Borggrefe,Alfred E. Buxton,Bernard R. Chaitman,Martin Fromer,Gabriel Gregoratos,George J. Klein,Arthur J. Moss,Robert J. Myerburg,Silvia G. Priori,Miguel A. Quinones,Dan M. Roden,Michael J. Silka,Cynthia M. Tracy,Jean-Jacques Blanc,Andrzej Budaj,Veronica Dean,Jaap W. Deckers,Catherine Despres,Kenneth Dickstein,John Lekakis,Keith McGregor,Marco Metra,João Morais,Ady Osterspey,Juan Tamargo,José Luis Zamorano,Sidney C. Smith,Alice K. Jacobs,Cynthia D. Adams,Elliott M. Antman,Jeffrey L. Anderson,Sharon A. Hunt,Jonathan L. Halperin,Rick A. Nishimura,Joseph P. Ornato,Richard L. Page,Barbara Riegel +38 more
TL;DR: This guideline is pleased to have this guideline developed in conjunction with the European Society of Cardiology (ESC) and to have been selected from all 3 organizations to examine subject-specific data and write guidelines.
Journal ArticleDOI
ACC/AHA/ESC 2006 Guidelines for Management of Patients With Ventricular Arrhythmias and the Prevention of Sudden Cardiac Death: A Report of the American College of Cardiology/American Heart Association Task Force and the European Society of Cardiology Committee for Practice Guidelines (Writing Committee to Develop Guidelines for Management of Patients With Ventricular Arrhythmias and the Prevention of Sudden Cardiac Death)
Douglas P. Zipes,A. John Camm,Martin Borggrefe,Alfred E. Buxton,Bernard R. Chaitman,Martin Fromer,Gabriel Gregoratos,George Klein,Arthur J. Moss,Robert J. Myerburg,Silvia G. Priori,Miguel A. Quinones,Dan M. Roden,Michael J. Silka,Cynthia M. Tracy +14 more
TL;DR: In this article, the medical profession plays a significant role in critically evaluating the use of diagnostic procedures and therapies as they are introduced and tested in the detection, management, or prevention of disease states.
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.
Leonard N. Horowitz,Mark E. Josephson,Ardeshir Farshidi,Scott R. Spielman,Eric L. Michelson,Allan M. Greenspan +5 more
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.
Journal ArticleDOI
Sudden Cardiac Death Prediction and Prevention: Report From a National Heart, Lung, and Blood Institute and Heart Rhythm Society Workshop
Glenn I. Fishman,Sumeet S. Chugh,John P. DiMarco,Christine M. Albert,Mark E. Anderson,Robert O. Bonow,Alfred E. Buxton,Peng Sheng Chen,Mark Estes,Xavier Jouven,Raymond Y. Kwong,David A. Lathrop,Alice M. Mascette,Jeanne M. Nerbonne,Brian O'Rourke,Richard L. Page,Dan M. Roden,David S. Rosenbaum,Nona Sotoodehnia,Natalia A. Trayanova,Zhi Jie Zheng +20 more
TL;DR: In this paper, the authors proposed a method for predicting and preventing sudden cardiac death (SCD) in the general population, which can manifest as ventricular tachycardia, ventricular fibrillation (VF), pulseless electric activity (PEA), or asystole.
References
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Catheter Technique for Recording His Bundle Activity in Man
Benjamin J. Scherlag,Sun H. Lau,Richard H. Helfant,Walter D. Berkowitz,Emanuel Stein,Anthony N. Damato +5 more
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.
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