Pulmonary EmbolismVenous ThrombosisEmbolismEmbolism, FatVentilation-Perfusion RatioDyspneaEmbolectomyVena Cava FiltersThrombophlebitisAnticoagulantsEmbolism, ParadoxicalFibrin Fibrinogen Degradation ProductsTomography, X-Ray ComputedThromboembolismTomography, Spiral ComputedAngiographyIntracranial EmbolismVentricular Dysfunction, RightAcute DiseaseVenous ThromboembolismEmbolism, Amniotic FluidPhlebographyPulmonary ArteryIntracranial Embolism and ThrombosisHeparinHeparin, Low-Molecular-WeightTechnetium Tc 99m Aggregated AlbuminFibrinolytic AgentsRadiography, ThoracicTreatment OutcomeFemoral VeinVena Cava, InferiorProspective StudiesThrombolytic TherapyRetrospective StudiesFatal OutcomeRisk FactorsChest PainCoughPopliteal VeinThrombosisEchocardiographyRespiratory SoundsWarfarinEmbolism, CholesterolPulmonary InfarctionHemorrhagePerfusion ImagingFollow-Up StudiesPostoperative ComplicationsPredictive Value of TestsRecurrenceLungIliac VeinHemoptysisRisk AssessmentMediastinal EmphysemaStreptokinaseThrombectomyKrypton RadioisotopesTime FactorsAutopsySeverity of Illness IndexEchocardiography, TransesophagealRespiration DisordersEnoxaparinXenon RadioisotopesHeart NeoplasmsThrombophiliaForamen Ovale, PatentShockAsthmaSensitivity and SpecificityAntifibrinolytic AgentsPneumopericardiumIncidenceRadionuclide ImagingTachycardia, SinusHeart DiseasesElectrocardiographySymptom AssessmentRespiratory Tract DiseasesBandagesPregnancy Complications, CardiovascularPlethysmography, ImpedanceLegKryptonDevice RemovalStockings, CompressionSubcutaneous EmphysemaPulmonary CirculationPrevalencePulmonary Heart DiseaseEmergency Service, HospitalPrognosisConstruction MaterialsRespiratory Function TestsHeart AtriaLung DiseasesPleural Effusion