Atrial FlutterCatheter AblationCatheters, IndwellingHeart Conduction SystemNeural ConductionAtrial FibrillationElectrocardiographyTricuspid ValveCathetersHeart BlockHeart AtriaElectrophysiologic Techniques, CardiacAnti-Arrhythmia AgentsPropafenoneCardiac Pacing, ArtificialPericarditisProcainamideBody Surface Potential MappingElectric CountershockAtrioventricular NodeAtrial Function, RightTachycardia, SupraventricularRefractory Period, ElectrophysiologicalAtrial FunctionDisopyramideFlecainideVena Cava, InferiorTachycardiaCardiac CathetersAmiodaroneTachycardia, ParoxysmalArrhythmias, CardiacTachycardia, Ectopic AtrialElectrophysiologyAtrial Premature ComplexesCatheterizationPulmonary VeinsCryosurgeryTreatment OutcomeFluoroscopyHydrops FetalisFollow-Up StudiesRecurrenceCatheterization, Central VenousCoronary SinusDogsTachycardia, Atrioventricular Nodal ReentrySick Sinus SyndromeTime FactorsTachycardia, Sinoatrial Nodal ReentryEquipment DesignProspective StudiesAtrial Function, LeftCardiac CatheterizationWolff-Parkinson-White SyndromeAction PotentialsAtrioventricular BlockElectrocardiography, AmbulatoryButylscopolammonium BromideVenae CavaeEchocardiography, TransesophagealFetal DiseasesCentral Venous CathetersHeart DiseasesSotalolBundle of HisAtrial AppendageCatheterization, PeripheralEndocardiumEdrophoniumAtrial SeptumUrinary CatheterizationRetrospective StudiesSurgery, Computer-AssistedHeart RateSinoatrial NodeEchocardiographyHeart Defects, CongenitalArrhythmia, SinusDigoxinEquipment FailureElectrodesTachycardia, VentricularAzygos VeinPostoperative ComplicationsRadiography, InterventionalBone ConductionTherapeutic IrrigationSulfonamidesPacemaker, ArtificialUrinary CathetersDysgeusiaMedian NerveHeartHeart Septal Defects, AtrialHeart SeptumCardiac Surgical ProceduresElectric StimulationCatheter-Related Infections