Key result
Progressive coronary artery communication into an ASD device at 8 years suggests incomplete neoendothelialization.
Case Report (n=1)
Highlights a rare late complication of transcatheter ASD closure involving progressive enlargement of a coronary artery communication with the device, potentially causing peridevice leak.
Answers are grounded in this paper and cite their sources.
May warrant extended surveillance after ASD closure; leaves open the need for prospective studies on late coronary risks.
A 70-year-old man underwent coronary angiography 8 years after transcatheter atrial septal defect closure. Although no coronary stenosis was observed, a progressively enlarged coronary artery communication originating from the atrial branch of the left circumflex artery and extending into the device was identified. Serial imaging demonstrated progressive enlargement and elongation of this vascular structure over time. Computed tomography showed contrast opacification within the device and left-to-right leakage, suggesting incomplete neoendothelialization and peridevice leak. These findings may reflect progressive enlargement of a preexisting vascular connection associated with the device, which may interfere with endothelialization and contribute to late complications.
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Kobayashi et al. (2026) conducted a case report in Coronary artery communication with an atrial septal defect closure device (n=1). Transcatheter atrial septal defect closure was evaluated. A progressively enlarged coronary artery communication extending into an atrial septal defect closure device was identified 8 years post-procedure, suggesting incomplete neoendothelialization.
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