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Incessant Ventricular Tachycardia (incessant + ventricular_tachycardia)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Radiofrequency Catheter Ablation of an Incessant Ventricular Tachycardia Following Valve Surgery

PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 1 2002
THORSTEN LEWALTER
LEWALTER, T., et al.: Radiofrequency Catheter Ablation of an Incessant Ventricular Tachycardia Following Valve Surgery. Sustained monomorphic ventricular tachycardia (VT) after valve surgery represents a clinical entity with different tachycardia mechanisms. This case report describes an incessant VT after tricuspid and aortic valve replacement that did not respond to antiarrhythmic drug treatment. The tachycardia exhibited VA block and a right bundle branch block pattern with left-axis deviation, suggesting ventricular excitation via the left posterior fascicle. The electrophysiological study was limited by the prosthetic tricuspid and aortic valve replacement, therefore a transseptal approach was necessary to obtain access to the ventricular myocardium. Radiofrequency catheter ablation was performed in the proximal left bundle or distal His region with termination of the incessant VT followed by complete AV block. After pacemaker implantation using a transvenous right atrial and an epicardial ventricular lead, no VT reoccurrence could be documented. [source]

Moricizine Induced Increase in Pacing Threshold

PACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 1p1 2003
JOHN P. GIROD
GIROD, J.P., et al.: Moricizine Induced Increase in Pacing Threshold. A 72-year-old woman who was experiencing incessant ventricular tachycardia and recurrent automatic implantable cardioverter defibrillator (AICD) firing despite amiodarone therapy was referred to the Cleveland Clinic Foundation. Myocardial ischemia and infarction were ruled out by standard means. Several antiarrhythmic medications were tried previously without success. Moricizine, 200 mg three times daily, was initiated and controlled the ventricular tachycardia. However, after the dose of moricizine was titrated upward, the patient became symptomatically bradycardic and the ECG exhibited 2:1 block of her paced rhythm and an increased ventricular pacing threshold. (PACE 2003; 26[Pt. I]:110,111) [source]

A Case of Brugada Syndrome Presenting With Incessant Polymorphic Ventricular Tachycardia

CLINICAL CARDIOLOGY, Issue 3 2010
Harn-Cherng Shiue MD
Brugada syndrome, an inherited arrhythmogenic cardiac disease, manifests with ST-segment changes in the right precordial leads, right bundle block pattern, and susceptibility to ventricular tachyarrhythmias and sudden death. The only established therapy for this disease is prevention of sudden death by implantation of a defibrillator. Herein we describe a case of a patient who presented with incessant ventricular tachycardia (VT) and syncope and who had a type 1 Brugada pattern on ECG. The patient was successfully treated with quinidine, after which the classically described type 2 and 3 patterns emerged. Copyright © 2009 Wiley Periodicals, Inc. [source]