Atrial FlutterCatheter AblationTricuspid ValveAtrial FibrillationElectrocardiographyElectrophysiologic Techniques, CardiacHeart AtriaHeart Conduction SystemHeart BlockAnti-Arrhythmia AgentsPropafenonePericarditisProcainamideBody Surface Potential MappingCardiac Pacing, ArtificialElectric CountershockVena Cava, InferiorAtrial Function, RightTachycardia, SupraventricularDisopyramideTachycardiaFlecainideTachycardia, Ectopic AtrialAtrial FunctionAmiodaroneRefractory Period, ElectrophysiologicalAtrial Premature ComplexesElectrophysiologyPulmonary VeinsCryosurgeryCoronary SinusTachycardia, ParoxysmalRecurrenceFallopian TubesHydrops FetalisTreatment OutcomeImpulse Control DisordersFollow-Up StudiesFluoroscopyArrhythmias, CardiacAtrioventricular NodeVenae CavaeTime FactorsCardiac CathetersDogsButylscopolammonium BromideProspective StudiesAtrial Function, LeftSick Sinus SyndromeTachycardia, Sinoatrial Nodal ReentryBundle of HisTachycardia, Atrioventricular Nodal ReentryFetal DiseasesSperm TransportEchocardiography, TransesophagealAtrial AppendageElectrocardiography, AmbulatoryEdrophoniumSotalolHeart DiseasesSurgery, Computer-AssistedAction PotentialsCardiac CatheterizationPacemaker, ArtificialPostoperative ComplicationsHeart Defects, CongenitalDigoxinMetencephalonEquipment DesignEndocardiumTachycardia, VentricularArrhythmia, SinusEchocardiographyDysgeusiaAtrial SeptumRetrospective StudiesSulfonamidesTherapeutic IrrigationAzygos VeinAtrioventricular BlockElectrodesHeart RateElectric Stimulation