Abstract
Repetitive monomorphic ventricular tachycardia from the left ventricular outflow tract is an uncommon arrhythmia. Successful catheter ablation has been previously reported in a few cases, but a large number of applications were usually needed when an approach based on either activation mapping or pace mapping was used. In our patient, the selection of the target point for application was based exclusively on unipolar mapping criteria of the ectopic beats, resulting in a short procedure with successful outcome.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Lerman BB, Stein K, Engelstein ED, et al. Mechanism of repetitive monomorphic ventricular tachycardia. Circulation 1995;92:421-429.
Hachiya H, Aonuma K, Yamauchi Y, et al. The electrocardiographic characteristics of left ventricular outflow tract tachycardia. (Abstract). PACE 1999;22 (Part II):733
Callans DJ, Menz V, Schwartzman D, et al. Repetitive monomorphic tachycardia from the left ventricular outflow tract: Electrocardiographic patterns consistent with a left ventricular site of origin. J Am Coll Cardiol 1997;29:1023-1027.
Kamakura S, Shimizu W, Matsuo K, et al. Localization of optimal ablation site of idiopathic ventricular tachycardia from right and left ventricular outflow tract by body surface ECG. Circulation 1998;98:1523-33.
Frey B, Kreiner G, Fritsch S, et al. Successful treatment of left ventricular outflow tract tachycardia by catheter ablation or minimal invasive surgical cryoablation. (Abstract). PACE 1999;22 (Part II):894.
Shimoike E, Ohba Y, Yanagi N, et al. Radiofrequency catheter ablation of left ventricular outflow tract tachycardia: Report of two cases. J Cardiovasc Electrophysiol 1998;9:196-202.
Shimoike E, Ohnishi Y, Ueda N, et al. Radiofrequency catheter ablation of left ventricular outflow tract tachycardia from the coronary cusp: A new approach to the tachycardia focus. J Cardiovasc Electrophysiol 1999;10:1005-9.
Spach MS, Barr RC, Serwer GA, et al. Extracellular potentials related to intracellular action potentials in the dog Purkinje system. Circ Res 1972;30:505-512.
Spach MS, Miller WT, Miller-Jones E, et al. Extracellular potentials related to intracellular action potentials during impulse conduction in anisotropic canine cardiac muscle. Circ Res 1979;45:188-204.
Haïssaguerre M, Dartigues JF, Warin JF, et al. Electrogram patterns predictive of successful catheter ablation of accessory pathways: Value of unipolar recording mode. Circulation 1991;84:188-202.
Man KC, Daoud EG, Knight BP, et al. Accuracy of unipolar electrogram for identification of the site of origin of ventricular activation. J Cardiovasc Electrophysiol 1997;8:974-979.
Taccardi B, Arisi G, Macchi E, et al. A new intracavitary probe for detecting the site of origin of ectopic ventricular beats during one cardiac cycle. Circulation 1987;75:272-281.
Khoury D, Taccardi B, Lux R, et al. Reconstruction of endocardial potentials and activation sequences from intracavitary probe measurements. Localization of pacing sites and effects of myocardial structure. Circulation 1995;91:845-863.
Merino JL, Jimenez-Borreguero J, Peinado R, et al. Unipolar mapping and magnetic resonance imaging of “idiopathic” right ventricular outflow tract ectopy. J Cardiovasc Electrophysiol 1998;9:84-87.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Asso, A., Pascual, E.D., López, M. et al. Catheter Ablation of Repetitive Monomorphic Ventricular Tachycardia From Left Ventricular Outflow Tract Guided by Unipolar Mapping. J Interv Card Electrophysiol 4, 435–439 (2000). https://doi.org/10.1023/A:1009818904490
Issue Date:
DOI: https://doi.org/10.1023/A:1009818904490