Why the study?
Late thrombus formation is a rare complication associated with patent foramen ovale (PFO) closure devices.
Highlights a rare complication of late atrial thrombus formation 9 months after percutaneous PFO closure requiring surgical removal.
Late thrombi after PFO closure may require surgery; leaves open optimal surveillance and antithrombotic duration.
Late thrombus formation is a rare complication associated with patent foramen ovale (PFO) closure devices. We report the case of an incidental discovery of large thrombi in both atria 9 months after percutaneous PFO occlusion that required cardiac surgery for thrombi removal. (Level of Difficulty: Beginner.)
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Regmi et al. (2020) studied this question.
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