Clinical analysis of transcatheter closure of patent ductus arteriosus in infants and young children using occluder device

Objectives To evaluate the therapeutic effect of transcatheter closure in treating infants with patent ductus arteriosus using occluder device. Methods Twenty-one(21)patients with an average age of 2.2 ± 0.76 years(from 9 months to 3 years)and weight of 12.6 ± 2.52(6.0 to 13.2)kg,were included. A lateral view aortogram was used for morphological determination of the minimal diameter of the ductus to facilitate the choice of suitable device. Occluder was implanted using the anterograde venous approach. Chest X-ray and echocardiogram were given during followup at 24 hours and 1,3,6 months,and 1,2,3 years after implantation. Results The devices were successfully implanted in all patients. The minimal diameter of the ducts showed angiographically from 2.5-10.9 mm,and the size of occluder used was from 6 mm to 18 mm. No obvious complications were observed during the follow-up period. Conclusions Transcatheter closure of PDA with occluder device is a safe and effective method for the treatment of PDA in infants and young children.