Atrial FibrillationCatheter AblationPulmonary VeinsHeart AtriaElectrophysiologic Techniques, CardiacCathetersEsophageal FistulaAtrial FlutterTreatment OutcomeHeart Conduction SystemBody Surface Potential MappingCardiac CathetersSurgery, Computer-AssistedTachycardia, Ectopic AtrialCardiac Imaging TechniquesAnticoagulantsElectrocardiographyAnti-Arrhythmia AgentsVentricular FibrillationRecurrenceEsophagusElectric CountershockFluoroscopyFollow-Up StudiesEchocardiography, TransesophagealWarfarinRoboticsEquipment DesignTime FactorsFeasibility StudiesProspective StudiesAtrial AppendageAmiodaroneCardiac Pacing, ArtificialAblation TechniquesRisk FactorsPostoperative ComplicationsPredictive Value of TestsRetrospective StudiesTachycardia, ParoxysmalThromboembolismAtrial FunctionRefractory Period, ElectrophysiologicalAtrial Function, LeftStrokeAtrial Premature ComplexesElectrocardiography, AmbulatoryAtrioventricular NodePropafenoneCryosurgeryPacemaker, Artificialbeta-AlanineSotalolFlecainideWolff-Parkinson-White SyndromeSick Sinus SyndromeInternational Normalized RatioTachycardia, SupraventricularEmbolismHeart RateArrhythmias, CardiacTachycardiaBepridilCardiac Surgical ProceduresDogsAtrial Function, RightHemorrhageChronic DiseaseRisk AssessmentDigoxinArrhythmia, SinusEchocardiographyIncidenceAtrial SeptumPericardiumTachycardia, VentricularSinoatrial NodeHeart FailureMitral ValveDefibrillators, ImplantableHeart Valve DiseasesHeart DiseasesBradycardiaAspirinHeart BlockProcainamideElectrophysiologyAtrial RemodelingEpicardial MappingFibrinolytic AgentsChi-Square DistributionTachycardia, Atrioventricular Nodal ReentryCerebrovascular DisordersCoronary SinusAutonomic DenervationBenzimidazolesPyridonesModels, CardiovascularPulmonary Veno-Occlusive DiseaseAction Potentials