HeartHeart RateImpulse Control DisordersHeart FailureHeart DiseasesHeart TransplantationHeart Defects, CongenitalFetal HeartHeart AtriaHeart ValvesAction PotentialsHeart BlockTime FactorsNeural ConductionElectric StimulationMyocardiumMechanoreceptorsCatsHeart Arrest, InducedMyocardial ContractionHeart Function TestsNeurons, AfferentMyocytes, CardiacMyocardial IschemiaElasticity Imaging TechniquesHemodynamicsDogsPerfusionCoronary DiseaseCrustaceaElectrophysiologyNerve EndingsSympathetic Nervous SystemAxonsCardiac Output, LowVentricular Function, LeftVagus NerveHeart Conduction SystemNerve FibersOscillometryEvoked PotentialsMyocardial InfarctionHeart, ArtificialHeart Failure, SystolicRats, Sprague-DawleyCardiac Pacing, ArtificialCardiomyopathy, DilatedEchocardiographyCardiomegalyRisk FactorsLeechesModels, CardiovascularHead Impulse TestHeart InjuriesMotor NeuronsThermoreceptorsHeart Rate, FetalHeart SeptumCardiotonic AgentsRheumatic Heart DiseaseCalciumStroke VolumeCardiomyopathiesMyocardial Reperfusion InjuryHeart ArrestRefractory Period, ElectrophysiologicalNeuromuscular JunctionCardanolidesBundle of HisHeart Valve ProsthesisSynaptic TransmissionAstacoideaAtrioventricular NodeAutonomic Nervous SystemMembrane PotentialsMuscle SpindlesProspective StudiesRats, WistarVentricular Dysfunction, LeftAdrenergic beta-AntagonistsHeart Failure, DiastolicRabbitsAmerican Heart AssociationImpulsive BehaviorSinoatrial NodeMusclesVentricular RemodelingHearing Loss, Noise-InducedDisease Models, AnimalFollow-Up StudiesAcousticsSensory Receptor CellsPhysical StimulationNorepinephrineTreatment OutcomeNeuronsHigh-Energy Shock WavesOxygen ConsumptionHeart Septal DefectsDeceleration