Duct-Occlud for Occlusion of Patent Ductus Arteriosus.

The Duct-Occlud Occlusion System (ATG Co., Malta, Europe) is the only coil-type device that has been specifically designed to close the patent ductus arteriosus (PDA). The Duct-Occlud coil has no Dacron feathers. Occlusion of the PDA is achieved by precise positioning and implantation of a large number of densely packed coils with configuration appropriate for the PDA. A principle feature of the delivery system is retrievability, which facilitates both repositioning of a suboptimally placed device and exchange for a larger or more appropriate device. Standard and reinforced devices are available for closure of PDA with minimum diameter up to 4 mm. Clinical studies have demonstrated device safety and efficacy.