Coronary Sinus Defect Following Transcatheter Closure of ASD Using Amplatzer Septal Occluder: Potential Erosion by the Device

Abstract

We present a case of small coronary sinus defect detected after transcatheter device closure of a large secundum atrial septal defect. Although device erosion of the dilated coronary sinus is suspected, the defect in the coronary sinus may have been present prior to ASD device closure. Dilated coronary sinus may be a risk factor when closing a secundum ASD with a device. To the best of our knowledge, coronary sinus erosion by an ASD device has not yet been reported in the medical literature.

Near-Infrared Remotely Controllable Shape Memory Biodegradable Occluder Based on Poly(l-lactide-co-ε-caprolactone)/Gold Nanorod Composite

“…In this therapy, occluders need to be transported to the lesion site through a catheter and precisely deployed to block abnormal shunts of blood. At present, the widely used occluders are mainly made from nondegradable nitinol (Ni–Ti) alloys as support frames and polyethylene terephthalate (PET) fabric films as occluder membranes. , However, the lifelong presence of such a nondegradable implant can lead to long-term foreign body response and serious complications. − Additionally, patients need to take anticoagulant drugs for a long time to prevent thrombosis, which increases the economic burden and also has the risk of bleeding. , …”