Propranolol in supraventricular tachycardias of childhood.

Dworkin, P. H., Bell, B. B., and Mirowski, M. (1973). Archives of Disease in Childhood, 48, 382. Propranolol in supraventricular tachycardias of childhood. 9 children with supraventricular tachycardias refractory to conventional therapy were treated with propranolol. In 3 children normal sinus rhythm was restored. In 3 others frequency of paroxysmal arrhythmias was decreased. In 1 reduction of ventricular response to the ectopic rhythm was achieved, and in 2 remaining patients, propranolol had no effect. The dosage of propranolol ranged from 0 *5 to 4 0 mg/kg per day, given orally, with few side effects. It appears that propranolol can play an important role in treatment of supraventricular arrhythmias of childhood unresponsive to conventional therapy.