DyspneaOxygenAirway ObstructionIntestinal ObstructionUreteral ObstructionOxygen ConsumptionReactive Oxygen SpeciesDuodenal ObstructionUrinary Bladder Neck ObstructionUrethral ObstructionNasal ObstructionGastric Outlet ObstructionVentricular Outflow ObstructionOxygen Inhalation TherapyPulmonary Disease, Chronic ObstructiveRespiratory Function TestsForced Expiratory VolumeLacrimal Duct ObstructionLung Diseases, ObstructiveSpirometrySinglet OxygenVital CapacityExercise ToleranceTreatment OutcomeCholestasisDyspnea, ParoxysmalHydronephrosisCholestasis, ExtrahepaticBronchial DiseasesLungSeverity of Illness IndexExercise TestTomography, X-Ray ComputedBezoarsAsthmaTracheal DiseasesTime FactorsBronchodilator AgentsConstriction, PathologicCoughAirway ResistancePalliative CareOxygen IsotopesIleal DiseasesTracheal StenosisRespiratory MusclesAcute DiseasePartial PressureRespirationPulmonary VentilationBronchoscopyJejunal DiseasesFatal OutcomeProspective StudiesLaryngeal DiseasesAnoxiaInspiratory CapacityRespiratory MechanicsLung Volume MeasurementsOximetryBlood Gas AnalysisFollow-Up StudiesPulmonary EmphysemaNasolacrimal DuctLung DiseasesResidual VolumeRetrospective StudiesTotal Lung CapacityQuality of LifeCardiomyopathy, HypertrophicRadiography, ThoracicTracheal NeoplasmsHyperbaric OxygenationColonic DiseasesBronchitisKidney PelvisPulmonary Veno-Occlusive DiseaseSuperior Vena Cava SyndromeBreathing ExercisesTissue AdhesionsHeart NeoplasmsInhalationCarbon DioxideBronchial Provocation TestsPulmonary Gas ExchangeStentsPostoperative ComplicationsAlbuterolAdministration, InhalationScopolamine DerivativesHemoptysisUreterChronic DiseaseOxidative StressEchocardiographyHemodynamicsPlethysmography, Whole BodyHydrogen PeroxideHeliumOxidation-Reduction