TracheaTracheal NeoplasmsVentricular Function, LeftVentricular Dysfunction, LeftTracheal DiseasesHypertrophy, Left VentricularTracheal StenosisGuinea PigsMuscle, SmoothAtrial Function, LeftBronchiHeart VentriclesMuscle RelaxationLarynxMuscle ContractionIntubation, IntratrachealEchocardiographyRespiratory SystemBronchoscopyDogsMucusLungTracheotomyHeart AtriaStroke VolumeHistamineEpitheliumAirway ObstructionMyocardial ContractionHeartTime FactorsTracheitisSRS-AHemodynamicsDiastoleBronchial DiseasesExocrine GlandsMethacholine CompoundsVagus NerveElectrocardiographyBronchial NeoplasmsTomography, X-Ray ComputedVentricular RemodelingNeurokinin AElectric StimulationMyocardiumSystoleTracheostomyHeart FailureAtropineTreatment OutcomeSubstance PParasympathetic Nervous SystemParasympatholyticsFunctional LateralityHypoplastic Left Heart SyndromeAcetylcholineLaryngeal NervesBlood PressureMyocardial InfarctionTracheoesophageal FistulaLaryngeal CartilagesMucous MembraneFiber Optic TechnologyTachykininsMucociliary ClearanceIsoproterenolCardiac VolumeAporphinesHeart RateBetaherpesvirinaeDose-Response Relationship, DrugAirway ResistanceCarbacholAdrenergic beta-AgonistsPropranololRespiratory MucosaVentricular FunctionVentricular PressureIndomethacinLaryngoscopyFollow-Up StudiesHeart AneurysmEsophagusProcaterolSwineCardiomyopathy, DilatedPressureThyroid CartilageMitral ValveMuscle TonusCatalogs, CommercialRespiratory Physiological Phenomena