Objective: Analyze the curative effect of percutaneous balloon pulmonary valve(PBPV)in the treatment of children with pulmonary valve stenosis(PS),to improve the cure rate and reduce the complications
Objective To explore the efficacy and safety of transcatheter closure of congenital ventricular septal defect using the Ampatzer duct occluder Ⅱ(ADOⅡ).
Objective To get the reason for the changes of echocardiography between preoperation and postoperative 24 hours in 102 with the percutaneous transcatheter closure of patent ductus arteriosus(PDA).