Respiration, ArtificialLung InjuryAcute Lung InjuryLungVentilator WeaningVentilator-Induced Lung InjuryRespiratory Distress Syndrome, AdultTidal VolumeVentilators, MechanicalPositive-Pressure RespirationVentilationPulmonary VentilationLung DiseasesHigh-Frequency VentilationRespiratory InsufficiencyWounds and InjuriesIntensive Care UnitsRespiratory MechanicsStress, MechanicalIntubation, IntratrachealTracheostomyPulmonary Gas ExchangeIntermittent Positive-Pressure VentilationIntensive CareNoninvasive VentilationCritical IllnessPulmonary EdemaBronchoalveolar Lavage FluidPulmonary AlveoliLung ComplianceRespirationBlood Gas AnalysisBrain InjuriesLung Volume MeasurementsPneumoniaTracheotomyCarbon DioxideHyperoxiaTime FactorsOxygenPneumonia, Ventilator-AssociatedCritical CareWork of BreathingDiaphragmAir PressureAPACHEHigh-Frequency Jet VentilationRespiratory Distress Syndrome, NewbornAirway ExtubationPulmonary AtelectasisBarotraumaReperfusion InjuryIntensive Care Units, PediatricProspective StudiesHypercapniaRespiratory Function TestsLung NeoplasmsSpinal Cord InjuriesTreatment OutcomeLength of StayPulmonary SurfactantsPartial PressureProne PositionAthletic InjuriesVentilation-Perfusion RatioRetrospective StudiesDisease Models, AnimalLung TransplantationInfant, NewbornPulmonary CirculationRats, Sprague-DawleyRespiratory Dead SpaceMice, Inbred C57BLExtravascular Lung WaterBronchopulmonary DysplasiaHospital MortalityInjury Severity ScoreAirway ResistancePressureRespiratory TherapyBronchoalveolar LavageOxygen Inhalation TherapyPneumonia, AspirationInteractive Ventilatory SupportLung Diseases, ObstructiveSmoke Inhalation InjuryAcute DiseaseMechanical ProcessesHeliumVentilators, Negative-PressureAcute Kidney InjuryRespiratory MusclesInhalationLiquid VentilationHemodynamicsMonitoring, PhysiologicApneaAdministration, InhalationBiomechanical PhenomenaAnoxia