CyanosisOxygenOximetryAnoxiaBlood Gas AnalysisMethemoglobinemiaAltitudeBlood Gas Monitoring, TranscutaneousOxygen ConsumptionOxygen Inhalation TherapyPartial PressureRespirationAltitude SicknessApneaLung Diseases, ObstructiveSpectroscopy, Near-InfraredCarbon DioxideOxyhemoglobinsPulmonary Gas ExchangeSleep Apnea SyndromesHypercapniaHeart Defects, CongenitalMountaineeringRespiratory InsufficiencyPulmonary VentilationFontan ProcedureRespiratory Function TestsPolysomnographyInfant, NewbornPulmonary ArterySleepMonitoring, PhysiologicPulmonary CirculationPositive-Pressure RespirationHemodynamicsIntermittent Positive-Pressure VentilationHypoventilationHeart Bypass, RightHeart RateOsteoarthropathy, Secondary HypertrophicRespiration, ArtificialMidazolamDyspneaHypertension, PulmonaryProspective StudiesRespiratory MechanicsSpirometryTime FactorsExercise TestTidal VolumeSleep StagesCerebrovascular CirculationHemoglobinsCardiac OutputFenoterolReactive Oxygen SpeciesBlood PressureArteriesNeuromuscular DiseasesLungInfant, PrematureForced Expiratory VolumeSleep Apnea, ObstructiveHepatopulmonary SyndromePulmonary EdemaEbstein AnomalyExerciseTreatment OutcomeCross-Over StudiesDouble-Blind MethodTetralogy of FallotVentilation-Perfusion RatioArteriovenous MalformationsAcute DiseaseMethemoglobinReference ValuesRegional Blood FlowVena Cava, SuperiorStatistics, NonparametricHeterotaxy SyndromeTibetRespiratory Distress Syndrome, AdultReproducibility of ResultsFollow-Up StudiesCardiac CatheterizationHyperoxiaSulfhemoglobinCardiac Surgical ProceduresMethylene BluePulmonary Valve StenosisHeart Septal Defects, AtrialConscious SedationPulmonary VeinsMonitoring, IntraoperativeJugular VeinsIntubation, IntratrachealHeart Septal Defects, VentricularFiber Optic TechnologyBenzocaineHemodilution