Intubation, IntratrachealIntubationLaryngoscopyLaryngoscopesIntubation, GastrointestinalVideo GamesAnesthesia, GeneralLaryngeal MasksVideotape RecordingMicroscopy, VideoDisposable EquipmentPostoperative ComplicationsManikinsTreatment OutcomeSuccinylcholineAndrostanolsAnesthetics, IntravenousAnesthesiologyProspective StudiesBariatric SurgeryCricoid CartilageEquipment DesignNeuromuscular Nondepolarizing AgentsVideo-Assisted SurgeryTime FactorsAirway ObstructionRetrospective StudiesAnesthesia, IntratrachealPropofolGeneral SurgeryLarynxRespiration, ArtificialAnesthesia, InhalationAnesthesiaPreanesthetic MedicationLaryngeal EdemaThiopentalTracheostomyIntraoperative ComplicationsCardiac Surgical ProceduresMonitoring, IntraoperativeRespiratory InsufficiencyAnesthetics, CombinedSurgery, OralThoracic SurgeryNasolacrimal DuctTracheal StenosisFentanylGlottisMethyl EthersVideo RecordingPostoperative PeriodNeuromuscular Depolarizing AgentsLacrimal Duct ObstructionNeuromuscular BlockadePremedicationAnesthesia, IntravenousColonoscopesClinical CompetenceEmergency Medical ServicesFollow-Up StudiesPreoperative CareDelivery RoomsPostoperative CareAlfentanilSurgical Procedures, OperativeImmobilizationBronchoscopesThoracic Surgery, Video-AssistedSurgical Procedures, ElectiveEpiglottisSurgery, PlasticTracheal DiseasesBronchoscopyAnesthetics, InhalationHoarsenessCoronary Artery BypassEpistaxisThoracic Surgical ProceduresEmergency MedicineOral Surgical ProceduresLidocaineSurgery, Computer-AssistedNeuromuscular Blocking AgentsCataract ExtractionAdjuvants, AnesthesiaConscious SedationAmbulatory Surgical ProceduresTracheaPneumonia, AspirationCervical VertebraeHeart RateDouble-Blind MethodHypnotics and SedativesCardiopulmonary BypassIntraoperative CareGynecologic Surgical ProceduresObesity, MorbidRisk FactorsArytenoid Cartilage