Atrial FlutterCatheter AblationAtrial FibrillationHeart BlockElectrocardiographyTricuspid ValveAnti-Arrhythmia AgentsAtrioventricular NodePropafenoneHeart AtriaCardiac Pacing, ArtificialElectric CountershockHeart Conduction SystemPericarditisElectrophysiologic Techniques, CardiacProcainamideTachycardia, SupraventricularRefractory Period, ElectrophysiologicalAmiodaroneTachycardiaBody Surface Potential MappingAtrial Function, RightAtrial FunctionTachycardia, ParoxysmalVena Cava, InferiorDisopyramideFlecainideDigoxinAtrial Premature ComplexesTachycardia, Ectopic AtrialHeart RatePacemaker, ArtificialElectrophysiologyArrhythmias, CardiacDogsHydrops FetalisTreatment OutcomeCryosurgeryFetal DiseasesFollow-Up StudiesElectrocardiography, AmbulatoryPulmonary VeinsParasympathectomyRecurrenceCoronary SinusFluoroscopyTachycardia, Atrioventricular Nodal ReentryCardiac CathetersButylscopolammonium BromideAtrial Function, LeftSick Sinus SyndromeTachycardia, Sinoatrial Nodal ReentryProspective StudiesTime FactorsEchocardiography, TransesophagealWolff-Parkinson-White SyndromeMagnetocardiographyVenae CavaeEdrophoniumHeart VentriclesSotalolBundle of HisHeart DiseasesCervical PlexusAtrial AppendageDysgeusiaAtrial SeptumHeart Defects, CongenitalSulfonamidesPostoperative ComplicationsArrhythmia, SinusSurgery, Computer-AssistedCardiac CatheterizationAzygos VeinVagus NerveEchocardiographyRetrospective StudiesDiltiazemEquipment Design