Atrial FlutterAtrial FibrillationCatheter AblationHeart AtriaElectric CountershockAnti-Arrhythmia AgentsElectrocardiographyPropafenoneCardiac Pacing, ArtificialElectrophysiologic Techniques, CardiacPulmonary VeinsHeart Conduction SystemTricuspid ValveChronic DiseaseAmiodaroneAtrial AppendageAtrial FunctionRefractory Period, ElectrophysiologicalAtrial Function, LeftPericarditisHeart BlockProcainamideBody Surface Potential MappingWarfarinAnticoagulantsTachycardia, ParoxysmalAtrioventricular NodeTreatment OutcomeCryosurgeryAtrial Function, RightFlecainideTachycardia, SupraventricularVentricular FibrillationRecurrenceSick Sinus SyndromeAtrial Premature ComplexesFollow-Up StudiesElectrocardiography, AmbulatorySotalolDigoxinPacemaker, ArtificialDisopyramideTachycardiaArrhythmia, SinusEchocardiography, TransesophagealThromboembolismTachycardia, Ectopic AtrialBundle of HisVena Cava, InferiorProspective StudiesTime FactorsElectrophysiologyHeart Valve DiseasesHeart RateArrhythmias, CardiacMitral ValveDogsHeart DiseasesEchocardiographyCardiac Surgical ProceduresRetrospective StudiesCoronary SinusStrokeFluoroscopyRisk FactorsHydrops FetalisCardiac CathetersAtrial SeptumWolff-Parkinson-White SyndromePostoperative ComplicationsTachycardia, Sinoatrial Nodal ReentryAction PotentialsEmbolismButylscopolammonium BromidePredictive Value of TestsCardiac CatheterizationSurgery, Computer-AssistedEchocardiography, DopplerFetal DiseasesHeart FailureTachycardia, Atrioventricular Nodal ReentryIncidenceVenae Cavaebeta-AlanineSinoatrial NodeEquipment DesignSulfonamidesEdrophoniumEndocardiumHeart VentriclesMitral Valve StenosisDysgeusiaInternational Normalized RatioTachycardia, VentricularAtrioventricular BlockRisk AssessmentDefibrillators, ImplantableHeart Defects, CongenitalHeart Septal Defects, AtrialElectrodes