Airway ObstructionSleep Apnea SyndromesSleepSleep Apnea, ObstructivePolysomnographyLaryngeal DiseasesAirway ResistancePierre Robin SyndromePharynxSleep Apnea, CentralContinuous Positive Airway PressureSnoringLung Diseases, ObstructiveTracheotomyTracheal StenosisSleep, REMLaryngeal EdemaRespiratory MechanicsPulmonary VentilationHypopharynxUvulaLarynxLaryngostenosisAir PressureSleep DisordersPulmonary Disease, Chronic ObstructivePalate, SoftRespirationIntestinal ObstructionTracheostomyOropharynxHigh-Frequency Jet VentilationAdenoidectomyRespiratory Function TestsTonsillectomyAdenoidsCroupSleep StagesTracheal DiseasesTongue DiseasesRespiratory SystemVentilators, Negative-PressureRespiratory MusclesPositive-Pressure RespirationLudwig's AnginaPharyngeal MusclesHeliumGoiter, SubsternalTongueNasal ObstructionForced Expiratory VolumeFailure to ThriveMandibular AdvancementWakefulnessIntubation, IntratrachealUreteral ObstructionTracheal NeoplasmsSpirometryApneaArytenoid CartilageLaryngoscopyAsthmaVital CapacityForced Expiratory Flow RatesSeverity of Illness IndexInhalationEpiglottisWork of BreathingTracheaLungOxygenRespiratory Physiological PhenomenaElectromyographyVocal CordsDisorders of Excessive SomnolenceAirway RemodelingBronchiVocal Cord ParalysisTreatment OutcomeSleep Initiation and Maintenance DisordersMaximal Expiratory Flow-Volume CurvesArrhythmia, SinusJaundice, ObstructiveNoseArousalAnesthetics, IntravenousAnoxiaBronchitisBronchodilator AgentsPressurePlethysmography, Whole BodyRetrospective StudiesLung Volume MeasurementsBronchial DiseasesBronchoscopyTime FactorsHypoglossal NerveProspective StudiesOximetryExhalation