Key result
An implanted ASD occluder system (ASDOS) developed a severe left-to-right shunt 8 years post-implantation due to membrane perforation of unknown etiology.
Case Report (n=1)
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Long-term follow-up may be necessary for patients with an implanted ASDOS device due to the risk of late membrane perforation and recurrent shunt.
Catheter interventional treatment of atrial septal defect (ASD) is widely accepted. The ASD occluder system (ASDOS) is no longer a widely used device nowadays. However, it is implanted in a substantial number of patients. We report a case of severe left-to-right shunt 8 years after catheter interventional closure of an ASD with an ASDOS device. The shunt was due to a membrane perforation, while the arms of the device were not dislocated. Microscopy, microbiology, and histology could not establish a proper explanation for the dysfunction; so long-term follow-up investigation may be required in patients with an implanted ASDOS device.
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Freyhaus et al. (2006) conducted a case report in Atrial septal defect (n=1). ASD occluder system (ASDOS) was evaluated on Severe left-to-right shunt due to membrane perforation. An implanted ASD occluder system (ASDOS) developed a severe left-to-right shunt 8 years post-implantation due to membrane perforation of unknown etiology.
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