Key result
A modified trans-tunnel single-wall puncture technique successfully closed a 37-mm ultra-long tunnel patent foramen ovale, with complete resolution of the residual shunt at 12 months.
Why the study?
Ultra-long tunnel patent foramen ovale (> 20 mm) presents a significant interventional challenge despite routine standard closure.
Does a modified trans-tunnel puncture technique enable successful percutaneous closure of an ultra-long tunnel PFO?
Case Report (n=1)
No
Does a modified trans-tunnel puncture technique enable successful percutaneous closure of an ultra-long tunnel PFO?
An imaging-guided modified trans-tunnel puncture technique is an effective strategy for the percutaneous closure of complex ultra-long tunnel PFOs.
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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Li et al. (2026) conducted a case report in Ultra-long-tunnel-type patent foramen ovale (n=1). Modified trans-tunnel single-wall puncture technique was evaluated on Resolution of residual shunt. A modified trans-tunnel single-wall puncture technique successfully closed a 37-mm ultra-long tunnel patent foramen ovale, with complete resolution of the residual shunt at 12 months.
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