Long QT SyndromeTorsades de PointesElectrocardiographyAnti-Arrhythmia AgentsAction PotentialsSotalolHeart Conduction SystemArrhythmias, CardiacSupranuclear Palsy, ProgressiveTime FactorsEther-A-Go-Go Potassium ChannelsAphasia, Primary ProgressiveDisease ProgressionHeart RateDogsRefractory Period, ElectrophysiologicalHeartPotassium Channels, Voltage-GatedHeart VentriclesAstemizoleMultiple Sclerosis, Chronic ProgressiveHeart BlockDisease Models, AnimalDose-Response Relationship, DrugDelayed Rectifier Potassium ChannelsGuinea PigsBleeding TimePartial Thromboplastin TimeElectrophysiologyProthrombin TimePapillary MusclesCisaprideAtrioventricular NodeVentricular FunctionBradycardiaPhenethylaminesMyocardiumPotassium ChannelsTreatment OutcomePotassium Channel BlockersQuinidineBepridilKCNQ1 Potassium ChannelRabbitsAtrioventricular BlockDroperidolMyocardial ContractionMyocytes, CardiacCardiac Pacing, ArtificialFlecainideHeart AtriaMice, Inbred C57BLPiperidinesMyoclonic Epilepsies, ProgressivePatch-Clamp TechniquesTachycardia, VentricularDrug-Related Side Effects and Adverse ReactionsMagnetic Resonance ImagingTerfenadineThrombin TimeDeath, Sudden, CardiacOphthalmoplegia, Chronic Progressive ExternalSulfonamidesMutationCalciumDrug Evaluation, PreclinicalBrainGraft SurvivalTelemetryJC VirusHypokalemiaAcetanilidesMice, TransgenicVentricular FibrillationFollow-Up StudiesPropafenoneGraft Enhancement, ImmunologicMembrane PotentialsPhenotypeHexobarbitalRats, Sprague-DawleyCells, CulturedAza CompoundsAtrial FunctionAmiodaroneRomano-Ward SyndromePotassiumPurkinje FibersElectric StimulationBlood Coagulation DisordersNAV1.5 Voltage-Gated Sodium ChannelAtrial FibrillationBlood CoagulationAtrophyDisopyramideBundle of HisAnalysis of VarianceTachycardia, SinusPericardiumDrug Interactions