Atrial FlutterCatheter AblationAtrial FibrillationTricuspid ValveElectrocardiographyHeart AtriaPropafenoneAnti-Arrhythmia AgentsHeart BlockPericarditisElectrophysiologic Techniques, CardiacProcainamideElectric CountershockCardiac Pacing, ArtificialHeart Conduction SystemBody Surface Potential MappingCoronary SinusCranial SinusesMaxillary SinusAtrial Function, RightTachycardia, SupraventricularParanasal SinusesSick Sinus SyndromeDisopyramideVena Cava, InferiorFlecainideCavernous SinusSinus of ValsalvaAtrial FunctionTachycardiaAmiodaroneCarotid SinusRefractory Period, ElectrophysiologicalAtrial Premature ComplexesFrontal SinusTachycardia, ParoxysmalTachycardia, Ectopic AtrialParanasal Sinus DiseasesSphenoid SinusHydrops FetalisCryosurgeryPulmonary VeinsAtrioventricular NodeElectrophysiologyTreatment OutcomeRecurrenceArrhythmias, CardiacFollow-Up StudiesFluoroscopySinus Thrombosis, IntracranialAtrial Function, LeftCardiac CathetersButylscopolammonium BromideTachycardia, Sinoatrial Nodal ReentryEthmoid SinusEchocardiography, TransesophagealElectrocardiography, AmbulatoryDogsFetal DiseasesBundle of HisProspective StudiesVenae CavaeSotalolPacemaker, ArtificialEdrophoniumAtrial AppendageParanasal Sinus NeoplasmsHeart DiseasesTime FactorsDigoxinTachycardia, Atrioventricular Nodal ReentrySinoatrial NodeAtrial SeptumTachycardia, SinusCardiac CatheterizationPostoperative ComplicationsHeart Defects, CongenitalHeart RateDysgeusiaEchocardiographySulfonamidesSurgery, Computer-AssistedArrhythmia, SinusAzygos VeinRetrospective StudiesMaxillary Sinus NeoplasmsEquipment DesignHeart Septal Defects, AtrialEndocardium