Respiratory InsufficiencyRespiration, ArtificialPositive-Pressure RespirationNoninvasive VentilationAcute DiseaseRespiratory Distress Syndrome, AdultMasksVentilator WeaningExtracorporeal Membrane OxygenationHeart FailureVentilators, MechanicalIntubation, IntratrachealIntensive Care UnitsWork of BreathingHypercapniaAirway ExtubationIntermittent Positive-Pressure VentilationPulmonary EdemaVentilators, Negative-PressureOxygen Inhalation TherapyObesity Hypoventilation SyndromeIntermediate Care FacilitiesIntensive CareLung Diseases, ObstructiveTreatment OutcomeFatal OutcomePulmonary Disease, Chronic ObstructivePulmonary Gas ExchangeTreatment FailureTracheostomyRetrospective StudiesHospital MortalityOxygenPulmonary AtelectasisPneumoniaAPACHECritical IllnessCritical CareRespiratory Care UnitsPneumothorax, ArtificialLungRespiratory RateLung ComplianceMethylprednisolone HemisuccinateGoiter, SubsternalCarbon DioxideBlood Gas AnalysisLung DiseasesRespiratory MechanicsProspective StudiesAnoxiaRespiratory MusclesRespiratory Function TestsBronchoscopyLung Diseases, InterstitialDiaphragmAirway ObstructionPneumonia, ViralLength of StayTime FactorsEarly AmbulationAcute Lung InjuryImmunocompromised HostPneumothoraxRespiratory Distress Syndrome, NewbornNeuromuscular DiseasesHypoventilationOrganophosphate PoisoningPulmonary Heart DiseaseAutopsyProne PositionIntermittent Positive-Pressure BreathingSeverity of Illness IndexPulmonary AlveoliPositive-Pressure Respiration, IntrinsicLung Volume MeasurementsTidal VolumeContinuous Positive Airway PressureStatus AsthmaticusEquipment DesignHumidityMultiple Organ FailurePrognosisRisk FactorsPostoperative ComplicationsRadiography, ThoracicSurvival RateRespiratory ParalysisFollow-Up StudiesRespirationPneumonia, PneumocystisPulmonary SurfactantsAcidosis, RespiratoryStatistics, NonparametricThoracoplastyInfant, NewbornChronic DiseaseCryptogenic Organizing PneumoniaAirway ResistanceRespiratory Therapy