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Correlative Anatomy for the Invasive Electrophysiologist: Outflow Tract and Supravalvar Arrhythmia
Author(s) -
ASIRVATHAM SAMUEL J.
Publication year - 2009
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/j.1540-8167.2009.01472.x
Subject(s) - medicine , ventricular outflow tract , cardiology , cardiac electrophysiology , ablation , cardiac arrhythmia , electrical conduction system of the heart , outflow , radiofrequency ablation , catheter ablation , fluoroscopy , electrocardiography , interventional cardiology , atrial fibrillation , electrophysiology , radiology , physics , meteorology
Radiofrequency ablation in the outflow tract and great arteries is increasingly performed to treat a variety of symptomatic cardiac arrhythmias. The regional anatomy of these structures is among the most complex of those encountered by cardiac electrophysiologists. An exact appreciation of the relationships between these overlapping structures and their proximity to the coronary arterial and conduction system is essential for rational, safe, and effective ablation for these arrhythmias. A supravalvar portion of the aorta is a unique site for arrhythmia origin where the arrhythmogenic substrate for atrial arrhythmias, ventricular arrhythmias, and accessory pathways may all be located. Discussed in this review are the main principles of outflow tract and supravalvar arrhythmia, and these are correlated with fluoroscopy, electrograms, and electrocardiography that help guide the invasive electrophysiologist.