Heart Septal Defects, AtrialHeart Septal Defects, VentricularHeart Septal DefectsHeart BlockAtrioventricular NodeHeart Conduction SystemAtrioventricular BlockSeptal Occluder DeviceElectrocardiographyBundle of HisHeart Defects, CongenitalBundle-Branch BlockCardiac CatheterizationArrhythmias, CardiacHeartAtrial SeptumEchocardiography, TransesophagealHeart SeptumNeural ConductionBalloon OcclusionEchocardiographyNAV1.5 Voltage-Gated Sodium ChannelProstheses and ImplantsHeart AtriaCardiac Surgical ProceduresPacemaker, ArtificialHeart RateSick Sinus SyndromeSinoatrial NodeProsthesis ImplantationPulmonary Valve StenosisConnexinsMuscular Dystrophy, Emery-DreifussEchocardiography, Doppler, ColorWolff-Parkinson-White SyndromeCardiac Pacing, ArtificialHeart VentriclesCardiomyopathy, DilatedAbnormalities, MultipleTreatment OutcomeHeart InjuriesEbstein AnomalyBradycardiaTetralogy of FallotTransposition of Great VesselsAtrial FlutterConnexin 43Aortopulmonary Septal DefectAtrial FunctionMyocardiumAngiocardiographyTachycardia, SupraventricularMyotonic DystrophyCardiomyopathiesTime FactorsCardiovascular Surgical ProceduresFollow-Up StudiesMutationEndocardial Cushion DefectsTricuspid ValveAtrial FibrillationFetal DiseasesInfant, NewbornHeart AneurysmPedigreeSinoatrial BlockPulmonary AtresiaLamin Type APulmonary Subvalvular StenosisPulmonary ArteryEchocardiography, Three-DimensionalPhenotypeDogsFetal HeartTachycardiaHeart ValvesCyanosisFluoroscopyCatheter AblationSodium ChannelsDuctus Arteriosus, PatentCardiopulmonary BypassCardiac Complexes, PrematurePulmonary VeinsElectrophysiologic Techniques, CardiacVena Cava, SuperiorRetrospective StudiesHeart DiseasesDextrocardiaIatrogenic DiseaseHemodynamicsPhonocardiographyHeart MurmursElectrophysiologyAortic Stenosis, SubvalvularPostoperative ComplicationsAortic CoarctationCardiovascular AbnormalitiesTruncus Arteriosus, PersistentCineangiography