Balloon OcclusionCatheterizationIntra-Aortic Balloon PumpingAortic Valve StenosisAngioplasty, BalloonHemorrhageCerebral HemorrhageSubarachnoid HemorrhageAngioplasty, Balloon, CoronaryEmbolization, TherapeuticCarotid Artery, InternalGastric BalloonCollateral CirculationIntracranial HemorrhagesIntracranial AneurysmCavernous SinusTreatment OutcomeStentsSuperior Sagittal SinusCarotid Artery DiseasesCerebral AngiographyRetinal HemorrhageBalloon ValvuloplastyTime FactorsHemodynamicsIntraoperative CarePostpartum HemorrhageFollow-Up StudiesCoronary CirculationCoronary VesselsIntracranial EmbolismOximesCoronary AngiographyTomography, X-Ray ComputedSwineGastrointestinal HemorrhageTechnetium Tc 99m ExametazimeOrganotechnetium CompoundsCoronary OcclusionArterial Occlusive DiseasesCerebrovascular CirculationAngioplasty, Balloon, Laser-AssistedMyocardial StunningArteriovenous FistulaMyocardial IschemiaCardiac CatheterizationIntraoperative ComplicationsDisease Models, AnimalVitreous HemorrhageDogsRetinal Vein OcclusionCoronary DiseaseEye HemorrhageVena Cava, InferiorRetinal Artery OcclusionCarotid Artery InjuriesTomography, Emission-Computed, Single-PhotonConstriction, PathologicProspective StudiesMyocardial InfarctionNeurologic ExaminationElectrocardiographyPulmonary Valve StenosisBlood Flow VelocityBlood PressureMitral Valve StenosisRecurrenceIliac ArteryMyocardial ReperfusionTunica IntimaBrain IschemiaAngiographyGraft Occlusion, VascularCarotid StenosisDilatationContrast MediaRetrospective StudiesVentricular Function, LeftPreoperative CareFemoral ArteryBasal Ganglia HemorrhageDental OcclusionHematomaPostoperative HemorrhageVasospasm, IntracranialBalloon EmbolectomyCarotid ArteriesCerebral ArteriesIntracranial Hemorrhage, HypertensiveInfarction, Middle Cerebral ArteryCerebral InfarctionAneurysm, RupturedHyperplasiaAortic CoarctationPostoperative ComplicationsCathetersVascular PatencyStrokeConstrictionIschemic Attack, Transient