Electrocardiographic Patterns of Superior Right Ventricular Outflow Tract Tachycardias: Distinguishing Septal and Free‐Wall Sites of Origin

ECG Patterns of RVOT Tachycardias. Introduction: The superior right ventricular outflow tract (RVOT) septum and free wall are common locations of origin for outflow tract ventricular tachycardias (VT). We hypothesized that (1) unique ECG morphologies of pace maps from septal and free‐wall sites in the superior RVOT could be identified using magnetic electroanatomic mapping for accurate anatomical localization; and (2) this ECG information could help facilitate pace mapping and accurate VT localization.

[1]  S. Markowitz,et al.  Chapter 72 – Ventricular Tachycardia in Patients with Structurally Normal Hearts , 2004 .

[2]  S. Markowitz,et al.  Mechanisms of Idiopathic Left Ventricular Tachycardia , 1997, Journal of cardiovascular electrophysiology.

[3]  F. Marchlinski,et al.  Repetitive monomorphic tachycardia from the left ventricular outflow tract: electrocardiographic patterns consistent with a left ventricular site of origin. , 1997, Journal of the American College of Cardiology.

[4]  L. Gepstein,et al.  A novel method for nonfluoroscopic catheter-based electroanatomical mapping of the heart. In vitro and in vivo accuracy results. , 1997, Circulation.

[5]  F. Marchlinski,et al.  Idiopathic right ventricular outflow tract tachycardia: narrowing the anatomic location for successful ablation. , 1996, American heart journal.

[6]  F. Marchlinski,et al.  Utility of the 12-lead electrocardiogram in localizing the origin of right ventricular outflow tract tachycardia. , 1995, American heart journal.

[7]  L. Epstein,et al.  Radiofrequency catheter ablation as a cure for idiopathic tachycardia of both left and right ventricular origin. , 1994, Journal of the American College of Cardiology.

[8]  D. Wilber,et al.  Adenosine‐Sensitive Ventricular Tachycardia Clinical Characteristics and Response to Catheter Ablation , 1993, Circulation.

[9]  Hue-Teh Shih,et al.  Radiofrequency Catheter Ablation of Ventricular Tachycardia in Patients Without Structural Heart Disease , 1992, Circulation.

[10]  H Calkins,et al.  Long-term results of catheter ablation of idiopathic right ventricular tachycardia. , 1990, Circulation.

[11]  J. Jalife,et al.  Cardiac Electrophysiology: From Cell to Bedside , 1990 .

[12]  R. Brooks,et al.  Idiopathic Ventricular Tachycardia A REVIEW , 1988, Medicine.

[13]  Arjun D. Sharma,et al.  An Algorithm for the Electrocardiographic Localization of Accessory Pathways in the Wolff‐Parkinson‐White Syndrome , 1987, Pacing and clinical electrophysiology : PACE.

[14]  M. Josephson,et al.  Right ventricular tachycardia: clinical and electrophysiologic characteristics. , 1983, Circulation.

[15]  L. Horowitz,et al.  Sustained Ventricular Tachycardia: Role of the 12‐lead Electrocardiogram in Localizing Site of Origin , 1981, Circulation.