title: Patent foramen ovale transcatheter closure device thrombosis.
abstract: The role of patent foramen ovale (PFO) in patients with cryptogenic stroke (stroke of unknown cause) remains controversial, although an association seems likely in younger patients with atrial septal aneurysms and PFO. The mechanism of cryptogenic stroke in these patients is presumed to be paradoxical embolism via right-to-left shunt across the PFO. The available options for treatment include medical therapy with antiplatelet or anticoagulant therapy or closure of the PFO surgically or with use of transcatheter PFO closure devices. We describe 2 cases of bilateral device thrombosis associated with use of a transcatheter PFO closure device (CardioSEAL). To our knowledge, only 1 other case of thrombosis associated with use of this device has been reported.
authors.affiliation: Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minn 55905, USA.
authors.forename: V T
authors.initials: VT
authors.lastname: Nkomo
authors.forename: P
authors.initials: P
authors.lastname: Theuma
authors.forename: C V
authors.initials: CV
authors.lastname: Maniu
authors.forename: K
authors.initials: K
authors.lastname: Chandrasekaran
authors.forename: F A
authors.initials: FA
authors.lastname: Miller
authors.forename: H V
authors.initials: HV
authors.lastname: Schaff
authors.forename: G W
authors.initials: GW
authors.lastname: Petty
authors.forename: T D
authors.initials: TD
authors.lastname: Miller
mesh_terms: D002404:Catheterization / Q000009:adverse effects* / Q000295:instrumentation*; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000628:therapy*; D006801:Humans; D002546:Ischemic Attack, Transient / Q000209:etiology*; D008875:Middle Aged; D013927:Thrombosis / Q000209:etiology*