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Right Ventricular Radiofrequency Ablation of Ventricular Tachycardia After Myocardial Infarction
Author(s) -
MENZ VOLKER,
DUTHINH VUONG,
CALLANS DAVID J.,
SCHWARTZMAN DAVID,
GOTTLIEB CHARLES D.,
MARCHLINSKI FRANCIS E.
Publication year - 1997
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1997.tb03549.x
Subject(s) - medicine , cardiology , ventricular tachycardia , catheter ablation , ablation , ventricle , right bundle branch block , myocardial infarction , endocardium , left bundle branch block , radiofrequency ablation , tachycardia , electrocardiography , heart failure
Radiofrequency transcatheter ablation of ventricular tachycardia in the setting of a prior myocardial infarction is typically performed with application of energy to the left ventricular endocardium. In this article, two cases are described in which successful radiofrequency transcatheter ablation of ventricular tachycardia occurred with energy delivery to the right ventricular septum after failed ablation attempts from the left ventricle. Both patients had tachycardias with a left bundle branch block morphology and markedly presystolic activity recorded from the right ventricular septum. Right ventricular septal activation mapping during ventricular tachycardia should be performed in patients with left bundle branch block tachycardia morphology and coronary artery disease to maximize efficacy of the catheter ablation procedure.