ArticleBMC cardiovascular disorders2026
Percutaneous closure of an ultra-long-tunnel-type patent foramen ovale: a rare case with multimodal imaging guidance.
Article in BMC cardiovascular disorders, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
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 prior right coronary artery stenting was confirmed to have a 37-mm ultra-long tunnel PFO via transesophageal echocardiography (TEE) and digital subtraction angiography (DSA). After initial percutaneous closure failure, the patient was successfully treated with a modified trans-tunnel puncture technique and deployment of an Abbott 18/25 mm Amplatzer PFO Occluder. Follow-up showed gradual resolution of residual shunt, with no shunt detected by June 2025. The imaging-guided modified trans-tunnel puncture technique is an effective strategy for complex ultra-long tunnel PFOs.
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