VentilationRespiration, ArtificialPulmonary VentilationHigh-Frequency VentilationIntermittent Positive-Pressure VentilationTidal VolumePositive-Pressure RespirationHigh-Frequency Jet VentilationNoninvasive VentilationVentilator WeaningRespirationRespiratory MechanicsVentilators, MechanicalPulmonary Gas ExchangeCarbon DioxideVentilation-Perfusion RatioIntubation, IntratrachealHypercapniaRespiratory Distress Syndrome, AdultOxygenVentilator-Induced Lung InjuryWork of BreathingBlood Gas AnalysisPartial PressureLungLung ComplianceTracheostomyAir PressureOne-Lung VentilationHeliumIntensive Care UnitsLaryngeal MasksVentilators, Negative-PressureRespiratory Distress Syndrome, NewbornMasksMaximal Voluntary VentilationRespiratory Function TestsLung Volume MeasurementsIntensive CareAnoxiaRespiratory Dead SpaceTracheotomyAirway ResistanceRespiratory RateApneaLung InjuryHypoventilationDiaphragmProne PositionIntermittent Positive-Pressure BreathingTime FactorsOxygen Inhalation TherapyRespiratory Physiological PhenomenaKrypton RadioisotopesPulmonary CirculationAcute Lung InjuryRespiratory MusclesHyperventilationKryptonPulmonary AtelectasisBarotraumaInfant, NewbornCritical IllnessAirway ObstructionAirway ExtubationChemoreceptor CellsFunctional Residual CapacityLung Diseases, ObstructiveAnesthesia, GeneralInhalationOxygen ConsumptionLung DiseasesAir ConditioningPulmonary EdemaCritical CareInteractive Ventilatory SupportNeuromuscular DiseasesProspective StudiesAir MovementsEquipment DesignMiddle Ear VentilationPressureRespiratory TherapyTreatment OutcomePulmonary AlveoliIntensive Care Units, PediatricFluorocarbonsPneumonia, Ventilator-AssociatedInfant, PrematureCapnographyAPACHEPulmonary Disease, Chronic ObstructiveHemodynamicsContinuous Positive Airway PressureLength of StayPulmonary SurfactantsMonitoring, PhysiologicXenon RadioisotopesAerosolsRespiratory Paralysis