SpasmSpasms, InfantileHemifacial SpasmCoronary VasospasmEsophageal Spasm, DiffuseErgonovineVentricular Function, LeftAngina Pectoris, VariantVentricular Dysfunction, LeftFacial MusclesHypertrophy, Left VentricularBlepharospasmVigabatrinAtrial Function, LeftHeart VentriclesFacial Nerve DiseasesEchocardiographyCoronary AngiographyElectrocardiographyCoronary VesselsNeuromuscular AgentsAngina PectorisMuscle SpasticityStroke VolumeTreatment OutcomeFacial NerveHeart AtriaStiff-Person SyndromeAcetylcholineBotulinum Toxins, Type AMyocardial InfarctionNitroglycerinTime FactorsOxytocicsHemodynamicsHeartCerebellopontine AngleMyocardial ContractionCoronary CirculationNerve Compression SyndromesVasodilator AgentsDiastoleDogsCardiac CatheterizationTrigeminal NeuralgiaFollow-Up StudiesMyocardiumMicrovascular Decompression SurgeryManometryAnticonvulsantsFunctional LateralityInjections, Intra-ArterialVentricular RemodelingSystoleHeart FailureRadial ArteryAdrenocorticotropic HormoneHypoplastic Left Heart Syndrome