AmiodaroneAnti-Arrhythmia AgentsAcetanilidesArrhythmias, CardiacPropafenoneSotalolFlecainideProcainamideAtrial FibrillationMexiletineDisopyramideQuinidineTachycardia, VentricularBenzofuransElectrocardiographyTachycardiaLidocaineVentricular FibrillationBepridilAtrial FlutterElectric CountershockHeart Conduction SystemTocainideRefractory Period, ElectrophysiologicalCatheter AblationCardiac Complexes, PrematurePhenethylaminesAprindineHeart AtriaDogsAction PotentialsElectrophysiologyHeartTachycardia, ParoxysmalTorsades de PointesCardiac Pacing, ArtificialTachycardia, SupraventricularHeart RateDefibrillators, ImplantableSodium Channel BlockersPyrimidinonesElectrocardiography, AmbulatoryPulmonary VeinsGuinea PigsRecurrencePotassium Channel BlockersHeart VentriclesAdrenergic beta-AntagonistsTachycardia, Ectopic JunctionalEncainideElectrophysiologic Techniques, CardiacDose-Response Relationship, DrugTreatment OutcomeSodium ChannelsAconitinePotassium ChannelsDigitalis GlycosidesEther-A-Go-Go Potassium ChannelsAjmalineDeath, Sudden, CardiacMoricizinePapillary MusclesVerapamilPurkinje FibersSulfonamidesPropanolaminesDigoxinDigitalisVentricular Premature ComplexesAnisolesThyrotoxicosisFollow-Up StudiesMyocardiumTime FactorsAtrioventricular NodeSinoatrial NodePiperidinesBradycardiaInjections, IntravenousWolff-Parkinson-White SyndromeLong QT SyndromeDrug InteractionsPotassium Channels, Voltage-GatedCross CirculationImidazolidinesVentricular DysfunctionPrajmaline