Anesthesia, GeneralAnesthesiaAnesthesia, LocalVentilationRespiration, ArtificialPulmonary VentilationAnesthesia, EpiduralAnesthesia, SpinalAnesthesia, InhalationAnesthesia, ConductionAnesthesia, IntravenousHigh-Frequency VentilationAnesthesia, ObstetricalTidal VolumeIntermittent Positive-Pressure VentilationAnesthesia Recovery PeriodPositive-Pressure RespirationAnesthesia, DentalRespirationHigh-Frequency Jet VentilationNoninvasive VentilationIntubation, IntratrachealAnesthetics, InhalationRespiratory MechanicsAnesthetics, IntravenousVentilator WeaningPropofolCarbon DioxidePulmonary Gas ExchangeAdjuvants, AnesthesiaVentilators, MechanicalIsofluraneMethyl EthersAnesthesiologyVentilation-Perfusion RatioAnesthetics, CombinedAnesthetics, LocalNitrous OxideMonitoring, IntraoperativeOxygenAnestheticsHalothaneBlood Gas AnalysisHypercapniaPartial PressureLaryngeal MasksRespiratory Distress Syndrome, AdultLidocaineAnesthesia, Closed-CircuitFentanylLungLung ComplianceWork of BreathingVentilator-Induced Lung InjuryAir PressureTracheostomyAnesthetics, GeneralConscious SedationPreanesthetic MedicationProspective StudiesBupivacaineKetamineAmbulatory Surgical ProceduresThiopentalOne-Lung VentilationTime FactorsHeliumNerve BlockMasksAnesthesia, CaudalHemodynamicsIntensive Care UnitsLung Volume MeasurementsAnesthesia, IntratrachealVentilators, Negative-PressureXenonApneaRespiratory Function TestsHypnotics and SedativesPentobarbitalIntensive CareIntraoperative ComplicationsRespiratory Distress Syndrome, NewbornPulmonary AtelectasisMaximal Voluntary VentilationAnesthetics, DissociativeEnfluraneXylazineAirway ResistanceHeart RateAnoxiaAirway ObstructionRespiratory RateAnesthesia Department, HospitalTracheotomyRespiratory Dead SpaceProne PositionIntraoperative PeriodDiaphragmTreatment Outcome