Tissue Therapy, HistoricalTherapy, Soft TissueDefibrillators, ImplantableDefibrillatorsElectric CountershockEquipment FailurePacemaker, ArtificialTachycardia, VentricularVentricular FibrillationElectrodes, ImplantedDeath, Sudden, CardiacArrhythmias, CardiacDevice RemovalCardiac Pacing, ArtificialEquipment SafetyHeart ArrestEquipment DesignElectric InjuriesCardiac Resynchronization TherapyCentral Nervous System Vascular MalformationsAlternative SplicingTreatment OutcomeElectrocardiographyProsthesis ImplantationBalloon OcclusionImplantable NeurostimulatorsProstheses and ImplantsCardiac Resynchronization Therapy DevicesAnti-Arrhythmia AgentsEmbolization, TherapeuticAmiodaroneFollow-Up StudiesCavernous SinusEquipment Failure AnalysisCarotid-Cavernous Sinus FistulaHeart FailureCoronary SinusSyncopeTachycardiaSubclavian VeinCardiopulmonary ResuscitationInfusion Pumps, ImplantableCerebral VeinsRetrospective StudiesCranial SinusesArteriovenous FistulaProspective StudiesPolyvinylsHeart BlockTime FactorsAtrial FibrillationVentricular Dysfunction, LeftForeign-Body MigrationTelemetryElectrophysiologic Techniques, CardiacFeasibility StudiesElectrocardiography, AmbulatoryVena Cava, SuperiorOut-of-Hospital Cardiac ArrestVenous CutdownCatheterization, PeripheralStroke VolumeBrugada Syndrome