Atrial FlutterCatheter AblationTricuspid ValveAtrial FibrillationElectrocardiographyElectrophysiologic Techniques, CardiacHeart AtriaHeart BlockHeart Conduction SystemAnti-Arrhythmia AgentsPropafenonePericarditisProcainamideBody Surface Potential MappingCardiac Pacing, ArtificialElectric CountershockVena Cava, InferiorAtrial Function, RightTachycardia, SupraventricularDisopyramideFlecainideTachycardiaTachycardia, Ectopic AtrialAmiodaroneAtrial Premature ComplexesAtrial FunctionRefractory Period, ElectrophysiologicalCryosurgeryPulmonary VeinsCoronary SinusTachycardia, ParoxysmalRecurrenceFallopian TubesHydrops FetalisElectrophysiologyTreatment OutcomeFollow-Up StudiesFluoroscopyArrhythmias, CardiacVenae CavaeAtrioventricular NodeCardiac CathetersButylscopolammonium BromideAtrial Function, LeftSick Sinus SyndromeTachycardia, Sinoatrial Nodal ReentryProspective StudiesFetal DiseasesSperm TransportEchocardiography, TransesophagealDogsTime FactorsAtrial AppendageElectrocardiography, AmbulatoryTachycardia, Atrioventricular Nodal ReentryEdrophoniumSotalolHeart DiseasesSurgery, Computer-AssistedBundle of HisCardiac CatheterizationHeart Defects, CongenitalPostoperative ComplicationsDigoxinMetencephalonPacemaker, ArtificialEndocardiumTachycardia, VentricularDysgeusiaAtrial SeptumEchocardiographyEquipment DesignRetrospective StudiesSulfonamidesTherapeutic IrrigationArrhythmia, SinusAzygos VeinAtrioventricular Block