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  • Title: Control of refractory cardiac arrhythmias with amiodarone.
    Author: Leak D, Eydt JN.
    Journal: Arch Intern Med; 1979 Apr; 139(4):425-8. PubMed ID: 434996.
    Abstract:
    Amiodarone hydrochloride was used to treat 19 patients with symptomatic arrhythmias refractory to quinidine sulfate, procainamide hydrochloride, disopyramide phosphate, antazoline hydrochloride, lidocaine hydrochloride, bretylium tosylate, propranolol hydrochloride, phenytoin sodium, and practotol acetanilide given to the limit of tolerance. In 17 patients, attacks were completely controlled. Arrhythmias treated successfully included recurrent supraventricular tachycardias, recurrent supraventricular tachycardias with Wolff-Parkinson-White syndrome, and refractory ventricular arrhythmias including recurrent ventricular tachycardia and ventricular fibrillation complicating acute coronary heart disease. Control was confirmed by continuous ECG monitoring both in the hospital and when ambulatory and was maintained for up to four years. Attacks of supraventricular tachycardia were reduced from 7.9/mo to one attack every 53.5 months on amiodarone. Hospital admissions for arrhythmias were reduced from 34 the year before treatment to none the year after. Therefore, amiodarone is an excellent drug for control of many refractory arrhythmias, but two patients with recurrent atrial fibrillation were refractory to this treatment.
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