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[Overall experience with percutaneous occlusion of patent ductus arteriosus]
C A Pedra1, S R Pedra, C A Esteves
1Instituto Dante Pazzanese de Cardiologia, São Paulo.
Purpose:
To evaluate the overall experience of our institution with percutaneous occlusion of the patent ductus arteriosus.
Methods:
Since December/92, 150 patients underwent 178 procedures (85-Rashkind technique; 87-Gianturco coils; 6-Duct Occlud). Median age was 6.5 years (1 to 57). Mean minimum ductal diameter was 3.05 +/- 1.24 mm (1 to 8). Clinical and echocardiographic evaluations were performed periodically.
Results:
Adequate implantation was achieved in 143 (95.3%) patients. Prevalence of immediate residual shunting was 52.1%, falling to 15.9% during follow-up. This figure decreased to 5.2% after new additional procedures. Umbrella and coil embolization occurred in 1 and 12 procedures, respectively. Hemolysis and mild stenosis of left pulmonary artery were observed in one patient each. There was no mortality.
Conclusion:
This therapeutic modality is safe and efficacious with good follow-up results.