Catheters, IndwellingCathetersCardiac ElectrophysiologyElectrophysiologyCatheterizationCatheterization, Central VenousElectrophysiological PhenomenaElectrophysiological ProcessesCentral Venous CathetersCardiac CathetersCatheterization, PeripheralElectrophysiologic Techniques, CardiacUrinary CatheterizationEquipment DesignUrinary CathetersAction PotentialsHeart Conduction SystemEquipment FailureArrhythmias, CardiacHeart AtriaCatheter-Related InfectionsPatch-Clamp TechniquesAtrial FibrillationBody Surface Potential MappingAtrioventricular NodeMagnetic Resonance Imaging, InterventionalElectrocardiographyModels, CardiovascularMembrane PotentialsPulmonary VeinsCardiac CatheterizationCardiac Pacing, ArtificialFluoroscopyTime FactorsVoltage-Sensitive Dye ImagingAtrial FlutterCatheter AblationForeign-Body MigrationAccessory Atrioventricular BundleNeuronsCatheterization, Swan-GanzDogsAtrial FunctionHeartBundle of HisTachycardia, Atrioventricular Nodal ReentryTreatment OutcomeTachycardia, VentricularJugular VeinsTachycardia, SupraventricularWolff-Parkinson-White SyndromeSubclavian VeinTachycardia, Ectopic AtrialRats, Sprague-DawleyRadiography, InterventionalIon ChannelsElectrodesNeurophysiologyElectroretinographySilicone ElastomersMyocytes, CardiacEpicardial MappingFeasibility StudiesPeritoneal DialysisVascular Access DevicesTachycardia, ParoxysmalProspective StudiesPeritonitisHeart BlockHeart VentriclesSodium ChannelsElectric StimulationComputer SimulationIon Channel GatingRefractory Period, ElectrophysiologicalPleural CavityCalciumSiliconesRetrospective StudiesBacteremiaSurgery, Computer-AssistedPacemaker, ArtificialPericardiumPotassium ChannelsMicroelectrodesAnti-Arrhythmia AgentsPeritoneal Dialysis, Continuous AmbulatoryPotassium Channels, Voltage-GatedSwineHeart RateVentricular FunctionElectrodes, ImplantedTachycardiaDisease Models, AnimalSodium Channel BlockersElectroencephalographyEndocardiumDose-Response Relationship, DrugEther-A-Go-Go Potassium ChannelsFollow-Up Studies