Atrial FlutterAtrial FibrillationCatheter AblationHeart AtriaElectric CountershockAnti-Arrhythmia AgentsElectrocardiographyChronic DiseasePulmonary VeinsCardiac Pacing, ArtificialPropafenoneAtrial AppendageElectrophysiologic Techniques, CardiacAmiodaroneHeart Conduction SystemWarfarinAtrial FunctionAnticoagulantsAtrial Function, LeftRefractory Period, ElectrophysiologicalVentricular FibrillationAtrioventricular NodeTachycardia, ParoxysmalTreatment OutcomeTricuspid ValveCryosurgeryDigoxinFollow-Up StudiesRecurrenceSick Sinus SyndromePacemaker, ArtificialBody Surface Potential MappingSotalolElectrocardiography, AmbulatoryArrhythmia, SinusHeart BlockProcainamideDiabetes MellitusThromboembolismDiabetes Mellitus, Type 1PericarditisHeart Valve DiseasesFlecainideAtrial Premature ComplexesEchocardiography, TransesophagealAtrial Function, RightTime FactorsProspective StudiesTachycardia, SupraventricularBundle of HisMitral ValveHeart RateRisk FactorsTachycardiaDiabetes Mellitus, Type 2StrokeDisopyramideTachycardia, Ectopic AtrialElectrophysiologyRetrospective StudiesEchocardiographyDogsHeart DiseasesCardiac Surgical ProceduresArrhythmias, CardiacVena Cava, InferiorDiabetes ComplicationsWolff-Parkinson-White SyndromeAction PotentialsHeart FailureEmbolismPredictive Value of TestsCoronary SinusAtrial Septumbeta-AlaninePostoperative ComplicationsIncidenceFluoroscopyMitral Valve StenosisCardiac CathetersEchocardiography, DopplerInternational Normalized RatioRisk AssessmentHeart VentriclesThrombosisDiabetes Mellitus, ExperimentalSinoatrial NodeHydrops FetalisHeart Valve Prosthesis ImplantationBepridilCardiac CatheterizationDefibrillators, ImplantableSurgery, Computer-AssistedHemorrhageChi-Square DistributionTachycardia, Sinoatrial Nodal ReentryEquipment DesignTachycardia, VentricularMitral Valve InsufficiencyEndocardium