A 52-year-old male with ischemic cardiomyopathy and severe ventricular dysfunction underwent coronary artery bypass grafting and left ventricular reconstruction (Dor operation). The patient developed acute onset of incessant ventricular tachycardia in the early postoperative period that was refractory to therapy with class I antiarrhythmic agents, and multiple attempts at electrical cardioversi...

Localized, high energy, direct current intracardiac shocks effectively prevented recurrent ventricular tachycardia in one patient whose arrhythmia originated in the right ventricular outflow tract, and in two patients with ventricular septal tachycardia after myocardial infarction.

The present study describes the clinical and electrophysiological characteristics of sustained bundle branch reentrant ventricular tachycardia treated with electrical ablation of the right bundle branch. Seven patients presented with syncopal episodes, and six of the seven had documented episodes of ventricular tachycardia. All patients had depressed left ventricular ejection fraction with card...

Oral antiarrhythmic treatment with mexiletine and disopyramide was evaluated in 34 patients with recurrent sustained ventricular tachycardias by programmed ventricular stimulation, except in a few instances where spontaneous attacks occurred under therapy. Coronary heart disease was present in 17 patients, cardiomyopathy in 11, myocarditis in five, and mitral valve prolapse in one. Complete sup...

A case of development of monomorphic sustained ventricular tachycardia in the prehospital phase of acute myocardial infarction is reported. By performing pacing from the right ventricular outflow tract during ventricular tachycardia, constant fusion and progressive fusion were documented without constant and progressive fusion from the right ventricular apex pacing, and it was terminated by pac...

The Conduction System of the Heart. Structure. Function, and Clinical Implications, edited by Wellens HJJ, Lie KI, Janse MJ. Philadelphia, Lea and Febiger, 1976, p 545 32. Fontaine G, Guiraudon G, Frank R, Vedel J, Grosgogeat Y, Cabrol C: Modem concepts of ventricular tachycardia. The value of electrocardiological investigations and delayed potentials in ventricular tachycardia of ischemic and ...

The effect of electrically induced auricular and ventricular tachycardia of various rates was studied in the anesthetized dog. When, the control heart ranging between 140 and 190 per minute, atrial tachycardia of a rate only slightly higher than the control rate was induced, a very temporary initial decrease in arterial blood pressure, cardiac output and coronary blood flow occurred, then all t...

A 52-year-old woman with a history of multiple episodes of paroxysmal supraventricular tachycardia underwent electrophysiologic studies and a catheter ablation procedure. The 12-lead electrocardiogram during tachycardia showed a long RP tachycardia with negative P waves in leads II, III, and aVF. At baseline, dual atrioventricular (AV) and ventriculoatrial (VA) nodal conduction was elicited by ...

Two hundred eighty patients with spontaneous nonsustained ventricular tachycardia were treated based on the results of electrophysiological testing. Seventy-nine patients had no evidence of structural heart disease, 134 had coronary artery disease, 43 had idiopathic dilated cardiomyopathy, and 24 patients had miscellaneous types of heart disease. Sustained monomorphic ventricular tachycardia wa...

BACKGROUND Ventricular tachycardia reentry circuits in chronic infarct scars can contain slow conduction zones, which are difficult to distinguish from bystander areas adjacent to the circuit during catheter mapping. This study developed criteria for identifying reentry circuit sites using computer simulations. These criteria then were tested during catheter mapping in humans to predict sites a...