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Use of the transseptal puncture in transcatheter closure of long tunnel-type patent foramen ovale
  1. C J McMahon,
  2. H G El Said,
  3. C E Mullins
  1. Lillie Frank Abercrombie Division of Pediatric Cardiology, Texas Children'ss Hospital and Baylor College of Medicine, Houston, Texas, USA
  1. Correspondence to:
    Dr C J McMahon, Division of Pediatric Cardiology, Texas Children'ss Hospital, 6621 Fannin, MC 2–2281, Houston, Texas, USA;


Two patients with long tunnel-type patent foramen ovale presented for elective transcatheter closure following transient ischaemic attack and stroke. Right to left shunting was confirmed on transthoracic and transoesophageal echocardiography. A new technique that used a transseptal procedure was devised to enable closure of the tunnel-type patent foramen ovale using the CardioSEAL transseptal occluder to avoid “bunching up” of the device and residual transatrial shunting.

  • transseptal puncture
  • tunnel-type patent foramen ovale
  • patent foramen ovale
  • device closure

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