Atrial FlutterCatheter AblationTricuspid ValveElectrophysiologic Techniques, CardiacHeart Conduction SystemAtrial FibrillationElectrocardiographyHeart AtriaBody Surface Potential MappingAnti-Arrhythmia AgentsVena Cava, InferiorCardiac Pacing, ArtificialVenae CavaePropafenonePericarditisHeart BlockProcainamideElectric CountershockAtrial Function, RightTachycardia, SupraventricularElectrophysiologyDisopyramideFlecainideTreatment OutcomeRecurrenceFollow-Up StudiesAmiodaroneAtrial FunctionTachycardiaRefractory Period, ElectrophysiologicalAtrial Premature ComplexesProspective StudiesTachycardia, Ectopic AtrialTachycardia, ParoxysmalHydrops FetalisCryosurgeryPulmonary VeinsCoronary SinusFluoroscopyAtrioventricular NodeArrhythmias, CardiacCardiac CathetersButylscopolammonium BromideAtrial Function, LeftSick Sinus SyndromeTachycardia, Sinoatrial Nodal ReentryFetal DiseasesEchocardiography, TransesophagealElectrocardiography, AmbulatoryEdrophoniumSotalolBundle of HisDogsHeart DiseasesAtrial Appendage