Oclusão percutânea do forame oval patente com prótese PREMERE TM: resultados preliminares da primeira experiência no Brasil

Abstract

ABSTRACT Percutaneous Occlusion of Patent Foramen Ovalewith the PREMERE TM Device: Preliminary Results ofthe First Experience in Brazil Background: Patent foramen ovale is observed in 27% to30% of the population and may be associated to embolicevents, among them the cryptogenic stroke. The PREMERE TM device, specially developed to correct patent foramenovale, has a low profile, reduced amount of metal and aleft anchor with a small total surface to minimize the riskof thrombus formation. Clinical and echocardiographicresults were evaluated immediately after the procedureand 3 and 6 months after device implantation. Method: From May 2008 to June 2009, the device was implantedin 14 patients with patent foramen ovale with prior cere-bral embolic events, confirmed by computerized tomographyand/or cranial magnetic resonance imaging. Echocardio-graphic patent foramen ovale was diagnosed whenmicrobubbles were detected in the left atrium within threeheartbeats after opacification of the right atrium. Patientswith patent foramen ovale with interatrial septal aneurysm> 2 cm, those with atrial fibrilation/flutter or with otherdiseases that might explain the cryptogenic stroke wereexcluded.