Web Chapter 64 Following the initial report by Snaps and colleagues, numerous reports have detailed the use of either free-release or detachable occlusion coils. In addition, there have been two reports of the use of the human Amplatzer ductal occluder (Sisson, 2003). The high cost of this device and the requirement for transvenous delivery precludes its routine use in veterinary medicine. The Amplatzer vascular plug and now the Amplatz canine duct occluder have been evaluated in dogs (Hogan et al, 2006; Nguyenba and Tobias, 2007). Generally these are deployed using femoral artery catheterization. Most dogs can be treated successfully with one of these two devices (or with coils) provided the operator is experienced and the catheterization laboratory carries a sufficient inventory of devices. Inappropriate ductal morphology or small size most commonly precludes use of catheter-based techniques. Lower-profile devices have been developed, but the majority of centers tend to recommend surgical correction in dogs weighing less than approximately 3 kg. Web Figure 64-1 Lateral radiographs of dogs with patent ductus arteriosus treated with multiple vascular occlusion coils (A), an Amplatzer vascular plug (B), and an Amplatz canine duct occluder (C).
Patent Ductus Arteriosus
Treatment
Device Occlusion of Patent Ductus Arteriosus
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Chapter 64: Patent Ductus Arteriosus
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