Respiratory InsufficiencyNoninvasive VentilationAnoxiaRespiratory Distress Syndrome, AdultRespiration, ArtificialOxygen Inhalation TherapyPositive-Pressure RespirationExtracorporeal Membrane OxygenationHeart FailureMasksOxygenIntubation, IntratrachealAcute DiseaseIntensive Care UnitsPulmonary Gas ExchangeBlood Gas AnalysisProne PositionHypercapniaTreatment OutcomeVentilator WeaningPulmonary Disease, Chronic ObstructiveTreatment FailureOximetryBronchoscopyVentilators, MechanicalPneumoniaIntermittent Positive-Pressure VentilationFatal OutcomeAcute Lung InjuryFiber Optic TechnologyObesity Hypoventilation SyndromeAdministration, InhalationProspective StudiesInfant, NewbornPneumonia, Ventilator-AssociatedRespiratory Distress Syndrome, NewbornTracheostomyNeuromuscular DiseasesHypoventilationOrganophosphate PoisoningLung Diseases, ObstructivePulmonary Heart DiseasePulmonary EdemaRetrospective StudiesIntensive CareWork of BreathingLungStatus AsthmaticusVentilators, Negative-Pressure