Respiratory InsufficiencyRespiratory Distress Syndrome, AdultRespiratory Distress Syndrome, NewbornRespiration, ArtificialNoninvasive VentilationAnoxiaPositive-Pressure RespirationTidal VolumeAcute Lung InjuryPulmonary SurfactantsVentilator WeaningHigh-Frequency VentilationPulmonary Gas ExchangeVentilators, MechanicalProne PositionInfant, NewbornBarotraumaIntensive Care UnitsLungExtracorporeal Membrane OxygenationSyndromeBlood Gas AnalysisIntubation, IntratrachealOxygenVentilator-Induced Lung InjuryInfant, PrematureLung InjuryRespiratory MechanicsOxygen Inhalation TherapyLung CompliancePulmonary VentilationIntensive CareIntermittent Positive-Pressure VentilationPulmonary EdemaPulmonary AlveoliTreatment OutcomeAPACHECritical IllnessLung DiseasesAcute DiseaseVentilationRespiratory Dead SpacePneumoniaProspective StudiesCritical CarePulmonary Surfactant-Associated Protein BHypercapniaBronchoalveolar Lavage FluidPulmonary AtelectasisTracheostomyMultiple Organ FailureBronchopulmonary DysplasiaPartial PressureRetrospective StudiesCarbon DioxideInfant, Premature, DiseasesTime FactorsOxygenators, MembraneFatal OutcomeMasksRespirationLung Volume MeasurementsAdministration, InhalationRespiratory Function TestsPneumothoraxPneumonia, Ventilator-AssociatedHeart FailureWork of BreathingGestational AgeStress, MechanicalAir PressureRespiratory AspirationRespiratory TherapySepsisHyaline Membrane DiseaseHospital MortalityBiological ProductsFetal Organ MaturityIntensive Care Units, PediatricIntensive Care Units, NeonatalPneumonia, AspirationFatty AlcoholsTracheotomyHigh-Frequency Jet VentilationBronchoscopyRisk FactorsPulmonary CirculationPulmonary Surfactant-Associated Protein CLength of StaySeverity of Illness IndexIntubationRadiography, ThoracicHemodynamicsDiaphragmAirway ExtubationVentilation-Perfusion RatioIntensive Care, NeonatalBronchoalveolar LavagePulmonary Disease, Chronic ObstructiveAirway Resistance