Death, SuddenDeath, Sudden, CardiacSudden Infant DeathCause of DeathCell DeathArrhythmias, CardiacCardiomyopathy, HypertrophicTachycardia, VentricularElectrocardiographyVentricular FibrillationAutopsyDeathLong QT SyndromeDefibrillators, ImplantableSyncopeElectrocardiography, AmbulatoryRisk FactorsFollow-Up StudiesAjmalineCoronary Vessel AnomaliesAnti-Arrhythmia AgentsCardiomyopathiesHeart Conduction SystemArrhythmogenic Right Ventricular DysplasiaNAV1.5 Voltage-Gated Sodium ChannelSportsHeart ArrestTime FactorsKCNQ1 Potassium ChannelMyocardial InfarctionBrugada SyndromeProspective StudiesHeart FailureCardiac Complexes, PrematureBundle-Branch BlockRetrospective StudiesCardiomyopathy, DilatedAmiodaroneHeart BlockTachycardiaEther-A-Go-Go Potassium ChannelsIncidenceHeart DiseasesSyndromeBrain DeathFatal OutcomePrognosisRisk AssessmentSurvival AnalysisMyocardiumVentricular Premature ComplexesForensic PathologyHeart RateRiskFetal DeathInfant, NewbornTreatment OutcomeKCNQ Potassium ChannelsMandatory TestingCoronary DiseaseTymoviridaeTetralogy of FallotAthletesPotassium Channels, Voltage-GatedEchocardiographyAdrenergic beta-AntagonistsLown-Ganong-Levine SyndromeCardiac Pacing, ArtificialAttitude to DeathMutationPedigreeMyocardial IschemiaAutonomic Nervous SystemIsolated Noncompaction of the Ventricular MyocardiumVentricular DysfunctionHeart VentriclesSurvival RateThoracic InjuriesStroke VolumeCardiomyopathy, RestrictiveAge FactorsCohort StudiesElectric CountershockAsphyxiaParisPredictive Value of TestsAutonomic Nervous System DiseasesHeartAtrioventricular NodeJervell-Lange Nielsen SyndromePacemaker, ArtificialHypertrophy, Left VentricularSodium ChannelsElectrophysiologic Techniques, CardiacKaplan-Meier EstimateJapanProportional Hazards ModelsCardiomegalyOregonVentricular Dysfunction, Left