Atrial FlutterCatheter AblationAtrial FibrillationTricuspid ValveElectrocardiographyPropafenonePericarditisAnti-Arrhythmia AgentsHeart AtriaHeart BlockElectrophysiologic Techniques, CardiacProcainamideElectric CountershockHeart Conduction SystemCardiac Pacing, ArtificialBody Surface Potential MappingAtrial Function, RightTachycardia, SupraventricularVena Cava, InferiorDisopyramideFlecainideAmiodaroneAtrial FunctionTachycardiaRefractory Period, ElectrophysiologicalAtrial Premature ComplexesTachycardia, Ectopic AtrialTachycardia, ParoxysmalHydrops FetalisCryosurgeryPulmonary VeinsElectrophysiologyRecurrenceCoronary SinusFluoroscopyTreatment OutcomeAtrioventricular NodeArrhythmias, CardiacFollow-Up StudiesCardiac CathetersButylscopolammonium BromideAtrial Function, LeftSick Sinus SyndromeTachycardia, Sinoatrial Nodal Reentry