Atrial FlutterCatheter AblationAtrial FibrillationFaciesEpiphysesElectrocardiographyTricuspid ValveHeart AtriaPropafenonePericarditisAnti-Arrhythmia AgentsHeart 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 SyndromeRetrospective StudiesTachycardia, Sinoatrial Nodal ReentryFetal DiseasesEchocardiography, TransesophagealElectrocardiography, AmbulatoryVenae CavaeEdrophoniumSotalolProspective StudiesBundle of HisDogsHeart DiseasesAtrial AppendageDigoxinTime FactorsTachycardia, Atrioventricular Nodal ReentryDysgeusiaAtrial SeptumHeart Defects, CongenitalSulfonamidesArrhythmia, SinusPostoperative ComplicationsSurgery, Computer-AssistedCardiac CatheterizationAzygos VeinPacemaker, ArtificialEchocardiography