Percutaneous closure of an ultra-long-tunnel-type patent foramen ovale: a rare case with multimodal imaging guidance
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Patent foramen ovale (PFO) is a common congenital cardiac anomaly, and ultra-long tunnel PFO (> 20 mm) presents a significant interventional challenge despite routine standard closure. A 68-year-old female with recurrent headaches, chest pain history, and prio... ...
