Pulmonary EmbolismEmbolismEmbolism, FatVeinsEmbolism, ParadoxicalIntracranial EmbolismThrombosisIntracranial Embolism and ThrombosisEmbolism, Amniotic FluidVenous ThrombosisSaphenous VeinFemoral VeinPortal VeinEmbolism, CholesterolAnticoagulantsEmbolectomyVaricose VeinsThrombophlebitisJugular VeinsThrombectomyPulmonary VeinsThromboembolismEchocardiography, TransesophagealVentilation-Perfusion RatioIliac VeinVena Cava FiltersCoronary ThrombosisVena Cava, InferiorPopliteal VeinHeart DiseasesTomography, X-Ray ComputedPhlebographyRenal VeinsAngiographyFibrinolytic AgentsMesenteric VeinsHeparinCarotid Artery ThrombosisForamen Ovale, PatentUmbilical VeinsAcute DiseaseTreatment OutcomeWarfarinHeart AtriaHepatic VeinsPulmonary ArteryThrombolytic TherapySubclavian VeinFibrinTomography, Spiral ComputedHeart Septal Defects, AtrialSuctionVenous ThromboembolismVentricular Dysfunction, RightEchocardiographyBlood CoagulationTime FactorsBlood PlateletsCerebral VeinsProspective StudiesFatal OutcomeRetrospective StudiesHemorrhageAtrial FibrillationPlatelet AdhesivenessRisk FactorsRecurrencePostoperative ComplicationsAtrial AppendagePlatelet AggregationSplenic VeinEmbolism and ThrombosisAxillary VeinHeparin, Low-Molecular-WeightFollow-Up StudiesIntraoperative ComplicationsAngioscopyStreptokinaseLegUltrasonography, Doppler, DuplexAutopsyRetinal VeinCerebral InfarctionBrachiocephalic VeinsAzygos VeinTissue Plasminogen ActivatorPredictive Value of TestsStrokeTechnetium Tc 99m Aggregated AlbuminXylemRisk AssessmentMyxomaAortic DiseasesPlatelet Aggregation InhibitorsHeart NeoplasmsCatheterizationHemoptysisPlatelet ActivationDogsIncidence