Continuous Positive Airway PressureSleep Apnea, ObstructivePositive-Pressure RespirationPolysomnographySleep Apnea SyndromesMasksCardiac OutputRespiratory Distress Syndrome, NewbornVentilator WeaningPatient ComplianceSleep Apnea, CentralPressureRespiratory InsufficiencyNoseHumidityWork of BreathingSleep StagesRespiration, ArtificialAirway ResistanceTreatment OutcomeOxygen Inhalation TherapyIntermittent Positive-Pressure VentilationMandibular AdvancementCheyne-Stokes RespirationAir PressureAirway ObstructionBlood PressureNasal CavityOxygenInfant, PrematureIntubation, IntratrachealInfant, NewbornAirway ExtubationPulmonary VentilationVentilators, MechanicalAerophagyRespiratory MechanicsOrthodontic Appliances, RemovableTidal VolumeSnoringNasal ObstructionPulmonary EdemaRespirationPharynxSleepPulmonary Gas ExchangeBlood Gas AnalysisCross-Over StudiesEquipment DesignIntermittent Positive-Pressure BreathingHeliumBronchopulmonary DysplasiaPartial PressureDisorders of Excessive SomnolenceRespiratory Function TestsProspective StudiesWakefulness-Promoting AgentsCarbon DioxideSeverity of Illness IndexHeart RateDelivery RoomsTime FactorsPulmonary AtelectasisPharyngeal MusclesHemodynamicsLung ComplianceFlail ChestFollow-Up StudiesUvulaIntubationNose Deformities, AcquiredHeart FailureNurseries, HospitalIntensive Care, NeonatalIntensive Care Units, NeonatalNight CarePulmonary SurfactantsBronchiolitis, ViralWakefulnessBlood Gas Monitoring, TranscutaneousLung Volume MeasurementsRespiratory TherapyInfant, Premature, DiseasesHypercapniaSleep, REMMonitoring, PhysiologicLong-Term CareInfant, Very Low Birth WeightOximetryHeatingArousalRespiratory MusclesOrthodontic AppliancesHigh-Frequency VentilationInhalationEquipment FailureNose DiseasesNasal SeptumTracheostomyAnoxia