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Incessant Supraventricular Tachycardia with Constant 1:2 Atrioventricular Ratio:
Author(s) -
KIRCHHOF PAULUS,
LOH PETER,
RIBBING MICHAEL,
WASMER KRISTINA
Publication year - 2003
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 - 10.1046/j.1540-8167.2003.02378.x
Subject(s) - medicine , supraventricular tachycardia , cardiology , atrioventricular node , tachycardia , catheter ablation , nodal , ablation , limiting , radiofrequency catheter ablation , supraventricular arrhythmia , atrial fibrillation , mechanical engineering , engineering
We report a patient with incessant, exercise‐limiting supraventricular tachycardia on the ventricular level and a constant 1:2 atrioventricular relation. Careful mapping of the AV nodal region revealed His alternans in the inferior AV nodal area and nonalternating His morphologies in the superior His region. Radiofrequency catheter ablation in the inferior AV node cured the patient (11‐month follow‐up). Constant dual ventricular activation, His alternans, distinct His morphologies in the superior and inferior His, and long‐term suppression of the tachycardia by ablation in the so‐called slow pathway region of the AV node are suggestive of permanent dual anterograde AV nodal conduction in this patient.(J Cardiovasc Electrophysiol, Vol. 14, pp. 316‐319, March 2003)