Atrial FlutterAtrial FibrillationCatheter AblationHeart AtriaAnti-Arrhythmia AgentsElectric CountershockElectrocardiographyElectrophysiologic Techniques, CardiacPulmonary VeinsCardiac Pacing, ArtificialVentricular FibrillationHeart Conduction SystemPropafenoneAmiodaroneHeartTricuspid ValveHeart BlockAnticoagulantsBody Surface Potential MappingHeart RateAtrial FunctionAtrial AppendageWarfarinRefractory Period, ElectrophysiologicalProcainamidePericarditisTachycardia, ParoxysmalFlecainideTreatment OutcomeAtrial Premature ComplexesAtrial Function, RightTachycardia, SupraventricularAtrial Function, LeftRecurrenceFollow-Up StudiesTachycardiaElectrocardiography, AmbulatoryThromboembolismAtrioventricular NodeCryosurgeryDisopyramideTachycardia, Ectopic AtrialHeart DiseasesSotalolProspective StudiesSick Sinus SyndromeTime FactorsArrhythmias, CardiacPacemaker, ArtificialEchocardiography, TransesophagealStrokeRisk FactorsHeart FailureDogsVena Cava, InferiorDigoxinElectrophysiologyEchocardiographyWolff-Parkinson-White SyndromeArrhythmia, SinusEmbolismCoronary SinusCardiac Surgical ProceduresRetrospective StudiesAtrial Septumbeta-AlaninePostoperative ComplicationsFluoroscopyCardiac CathetersHeart Defects, CongenitalChronic DiseaseInternational Normalized RatioIncidenceSinoatrial NodeRisk AssessmentBundle of HisHydrops FetalisPredictive Value of TestsCardiac CatheterizationBepridilDefibrillators, ImplantableEndocardiumHeart TransplantationTachycardia, VentricularHemorrhageSurgery, Computer-AssistedMitral ValveTachycardia, Sinoatrial Nodal ReentryEquipment DesignAction PotentialsChi-Square DistributionTachycardia, Atrioventricular Nodal ReentryBradycardiaAtrioventricular BlockSulfonamidesHeart SeptumButylscopolammonium BromidePericardiumHeart ValvesHeart Valve Diseases