High-Frequency VentilationRespiration, ArtificialLiquid VentilationRespiratory InsufficiencyVentilators, Negative-PressureRespiratory Distress Syndrome, AdultPulmonary Gas ExchangePositive-Pressure RespirationTidal VolumeRespiratory Distress Syndrome, NewbornOxygenVentilator WeaningInfant, NewbornFluorocarbonsVentilationVentilators, MechanicalPulmonary VentilationVentilator-Induced Lung InjuryIntensive Care UnitsStress, MechanicalTracheostomyIntubation, IntratrachealIntermittent Positive-Pressure VentilationRespiratory MechanicsNoninvasive VentilationIntensive CareCritical IllnessRespirationTracheotomyLung ComplianceCarbon DioxidePneumonia, Ventilator-AssociatedHigh-Frequency Jet VentilationDiaphragmWork of BreathingAirway ExtubationBlood Gas AnalysisCritical CareTime FactorsLungAPACHEIntensive Care Units, PediatricLung InjuryAir PressureHypercapniaProspective StudiesAcute Lung InjuryLength of StayBarotraumaTreatment OutcomePulmonary AtelectasisLung Volume MeasurementsPartial PressureVentilation-Perfusion RatioRetrospective StudiesRespiratory Function TestsRespiratory TherapyMechanical ProcessesProne PositionAirway ResistanceLung DiseasesHospital MortalityRespiratory Dead SpacePneumoniaInteractive Ventilatory SupportRespiratory MusclesEquipment DesignApneaPressureMasksHeliumOxygen Inhalation TherapyHypnotics and SedativesMonitoring, PhysiologicRespiratory Care UnitsBiomechanical PhenomenaPulmonary EdemaInhalationBronchopulmonary DysplasiaPulmonary SurfactantsPulmonary AlveoliRespiratory ParalysisInfant, PrematureNeuromuscular DiseasesLung Diseases, Obstructive