Atrial FibrillationAtrial FlutterCatheter AblationPulmonary VeinsTachycardia, ParoxysmalHeart AtriaElectrophysiologic Techniques, CardiacAnti-Arrhythmia AgentsElectrocardiographyHeart Conduction SystemBody Surface Potential MappingCardiac Pacing, ArtificialElectric CountershockTachycardia, SupraventricularAtrial Premature ComplexesElectrocardiography, AmbulatoryTachycardia, Ectopic AtrialCryosurgeryTreatment OutcomeRecurrenceAmiodaroneAtrioventricular NodeWolff-Parkinson-White SyndromeSick Sinus SyndromePropafenoneCatheters, IndwellingFlecainideFollow-Up StudiesAtrial Function, LeftTachycardiaAtrial FunctionVentricular FibrillationTricuspid ValveAtrial Function, RightPacemaker, ArtificialAnticoagulantsAtrial SeptumRefractory Period, ElectrophysiologicalWarfarinTachycardia, Atrioventricular Nodal ReentryHeart BlockCathetersAtrial AppendageProspective StudiesTime FactorsTachycardia, VentricularArrhythmias, CardiacThromboembolismSotalolFluoroscopyCardiac CathetersDisopyramideProcainamidePericarditisEchocardiography, TransesophagealHeart RateElectrophysiologyArrhythmia, SinusRetrospective StudiesEchocardiographySinoatrial NodeCatheterizationVena Cava, SuperiorStrokeTachycardia, Sinoatrial Nodal ReentryHeart SeptumSurgery, Computer-AssistedEquipment DesignRisk FactorsCoronary SinusPostoperative ComplicationsCardiac CatheterizationCardiac Complexes, PrematureDogsBundle of HisBepridilVena Cava, InferiorAblation TechniquesPredictive Value of TestsVentricular Premature ComplexesFeasibility StudiesBradycardiaEndocardiumHeart DiseasesRisk AssessmentElectrocoagulationEpicardial MappingPericardiumCardiac Surgical ProceduresIncidenceAccessory Atrioventricular BundleChronic Diseasebeta-AlanineAutonomic Nervous SystemChi-Square DistributionStellate GanglionVagus NerveTachycardia, ReciprocatingDigoxinPulmonary Veno-Occlusive Disease