Respiratory InsufficiencyLungRespiration, ArtificialHeart FailureLung DiseasesExtracorporeal Membrane OxygenationNoninvasive VentilationPositive-Pressure RespirationRespiratory Distress Syndrome, AdultAcute DiseaseLung NeoplasmsHypercapniaVentilator WeaningTreatment FailureLung InjuryVentilators, MechanicalIntubation, IntratrachealFatal OutcomeMasksIntermittent Positive-Pressure VentilationOxygen Inhalation TherapyLung TransplantationTreatment OutcomeAcute Lung InjuryIntensive Care UnitsLung Diseases, ObstructivePulmonary EdemaObesity Hypoventilation SyndromePulmonary Disease, Chronic ObstructiveLung Diseases, InterstitialRetrospective StudiesCarcinoma, Non-Small-Cell LungRespiratory Distress Syndrome, NewbornRespiratory Function TestsPulmonary Gas ExchangeTracheostomyNeuromuscular DiseasesHypoventilationOxygenPneumoniaPulmonary Heart DiseaseBlood Gas AnalysisLung Volume MeasurementsOrganophosphate PoisoningIntensive CareWork of BreathingPulmonary AlveoliPulmonary SurfactantsPulmonary AtelectasisStatus AsthmaticusVentilators, Negative-PressureMultiple Organ FailureAnoxiaProspective StudiesRespiratory MusclesCritical IllnessDiaphragmCarbon DioxideRespiratory ParalysisRespiratory Care UnitsIntermediate Care FacilitiesAPACHERespiratory MechanicsAcidosis, RespiratoryHospital MortalityThoracoplastyAirway ExtubationTime FactorsChronic DiseaseBronchoscopyInfant, NewbornAirway ObstructionLung ComplianceCryptogenic Organizing PneumoniaSeverity of Illness IndexRespiratory RateRespiratory TherapyPrognosisPneumonia, ViralBronchoalveolar Lavage FluidDyspneaRisk FactorsPulmonary FibrosisFollow-Up StudiesTracheal DiseasesCritical CareHigh-Frequency VentilationPartial PressurePneumonia, AspirationMass Casualty IncidentsAdministration, InhalationKidney Failure, ChronicFailure to ThriveSurvival RatePersistent Fetal Circulation SyndromeRespiratory System AgentsRadiography, ThoracicPneumothoraxTidal VolumeLength of Stay