Transcatheter Repair of Acute Torrential Tricuspid Regurgitation Presenting as Platypnea-Orthodeoxia Syndrome.

An 82-year-old man developed acute breathlessness and cyanosis, exacerbated while upright and improved on lying flat (platypnea-orthodeoxia syndrome). Echocardiography revealed acute torrential tricuspid regurgitation due to a flail posterior leaflet leading to right-to-left shunting through a patent foramen ovale (PFO). The patient's symptoms resolved after transcatheter PFO closure and tricuspid valve edge-to-edge repair.
Competing Interests: Funding Support and Author Disclosures Dr Dawkins has received grants/research support from Edwards Lifesciences; and honoraria and consultation fees from Abbott and Edwards Lifesciences. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.
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