377
Participants
Start Date
October 31, 2013
Primary Completion Date
September 30, 2018
Study Completion Date
September 30, 2018
Propranolol
Initiated at a dosage of 1 mg/kg per day divided 3 times daily for 1 week, and then increased to 2 mg/kg per day divided 3 times daily from weeks 2 to 24.
Atenolol
Initiated at a dosage of 0.5 mg/kg per day in a single dose for 1 week, and then increased to 1 mg/kg per day in a single dose from weeks 2 to 24.
West China Hospital of Sichuan University, Chengdu
West China Hospital
OTHER