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Amiodarone for Refractory Automatic Atrial Tachycardia: Observations on the Electrophysiological Actions of Amiodarone
Author(s) -
WIENER ISAAC,
LYONS HOLLY
Publication year - 1984
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1984.tb05600.x
Subject(s) - amiodarone , medicine , tachycardia , automaticity , refractory (planetary science) , cardiology , refractory period , atrial tachycardia , electrophysiology , antiarrhythmic agent , effective refractory period , ventricular tachycardia , anesthesia , atrial fibrillation , catheter ablation , heart disease , physics , cognition , psychiatry , astrobiology
A patient with automatic atrial tachycardia refractory to all conventional therapies is described. Amiodarone controlled the tachycardia by causing a progressive decrease in the rate of discharge from the atrial focus. We conclude that 1) amiodarone was effective therapy for automatic atrial tachycardia, avoiding the need for nonmedical therapy; and 2) amiodarone appeared to act by decreasing spontaneous automaticity.