Initial study for transcatheter closure of PDA with Amplatzer Duct Occluder II
The occlusion of certain anatomical types of PDA, especially in infants and young children, remain a challenge. The search for the perfect device is pursued by different companies to cover all the shapes and types of PDAs.
Aim of the study is to report the initial experience with transcatheter closure of PDA with ADOII (AGA medical).
Methods: Ten cases with different shapes of PDA were included, their age ranged from 0.08 to 5yrs and wt ranges from 3 Kg to 20 Kg.
The device used is a modified ADOII made of fabric free nitinol wire mesh. The device configuration is a central waist with two retention discs. The two discs are designed to be deployed on the arterial and venous sides of the defect. Device is available in two lengths.
Results: ADO II can be used to close ducts beyond the neonatal period if less than 4.5 cm in diameter. The device can be used from both the arterial and the venous side. Occlusion is not attained immediately due to absence of fabric in this device but it is complete within one month. This work demonstrates how to choose the suitable length of the device.
Conclusion: The ADO II is a promising addition to our choices for PDA closure.
Further studies will be needed to define clearly when to use the new device.