Use of the transseptal puncture in transcatheter closure of long tunnel-type patent foramen ovale.

McMahon, C J; El Said, H G; Mullins, C E · Heart · 2002

case_report · Level V

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Abstract

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.

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