title: Unusual Outflow Tract Ventricular Tachycardia.
abstract: Distinguishing premature ventricular contractions/ventricular tachycardia from the right ventricular outflow tract versus the left ventricular outflow tract can be difficult by electrocardiogram findings alone. A thorough understanding of the outflow tract anatomy and a systematic and meticulous approach to mapping of the ventricular outflow regions and great vessels increases the success rate and decreases the risk of damage to adjacent structures and the conduction system. The use of multimodality imaging, particularly real-time intracardiac echocardiographic guidance, is essential for defining anatomy, ensuring adequate catheter contact, and minimizing risks.
authors.affiliation: Department of Pediatrics, Division of Pediatric Cardiology, Stanford University, Palo Alto, CA, USA. Electronic address: sachie@stanford.edu.
authors.forename: Kara S
authors.initials: KS
authors.lastname: Motonaga
authors.affiliation: Department of Pediatrics, Division of Pediatric Cardiology, Stanford University, Palo Alto, CA, USA.
authors.forename: Scott R
authors.initials: SR
authors.lastname: Ceresnak
authors.affiliation: Department of Medicine, Division of Cardiology, University of California, San Francisco, San Francisco, CA, USA.
authors.forename: Henry H
authors.initials: HH
authors.lastname: Hsia
mesh_terms: D000293:Adolescent; D015716:Electrocardiography, Ambulatory; D005260:Female; D006801:Humans; D017180:Tachycardia, Ventricular / Q000175:diagnosis / Q000503:physiopathology
keywords: Heart; Outflow tract; Ventricular arrhythmia; Ventricular tachycardia