Foramen Ovale, PatentHeart Septal Defects, AtrialEmbolism, ParadoxicalForamen OvaleEchocardiography, TransesophagealSeptal Occluder DeviceAtrial SeptumPatents as TopicHeart AneurysmValsalva ManeuverPlasmodium ovaleEmbolismCardiac CatheterizationHeart SeptumMigraine with AuraIntracranial EmbolismBalloon OcclusionHeart Septal DefectsStrokeForamen MagnumDecompression SicknessProstheses and ImplantsUltrasonography, Doppler, TranscranialEchocardiographyMigraine DisordersCardiac Surgical ProceduresSecondary PreventionHigh Pressure Neurological SyndromeIschemic Attack, TransientEmbolism, AirDivingPulmonary EmbolismHeart AtriaRecurrenceContrast MediaIntracranial Embolism and ThrombosisTreatment OutcomeEchocardiography, Doppler, ColorCerebrovascular DisordersFluoroscopyThromboembolismAnticoagulantsDevice RemovalProsthesis ImplantationCarcinoid Heart DiseaseVena Cava, InferiorFollow-Up StudiesEmbolectomyCardiac TamponadeRespiratory ParalysisProspective StudiesBrain IschemiaAnoxiaSensitivity and SpecificityForeign-Body MigrationHeart DiseasesThrombosisHeart ValvesDyspneaEchocardiography, Three-DimensionalRisk FactorsEchoencephalographyGelatinRadiography, InterventionalEquipment DesignAbsorbable ImplantsMagnetic Resonance ImagingRetrospective StudiesCatheterizationProsthesis DesignPosturePrevalenceIntention to Treat AnalysisCerebral InfarctionPlatelet Aggregation InhibitorsCerebral ArteriesFibrinolytic Agents