AnesthesiaAnesthesia, GeneralAnesthesia, IntravenousMedetomidineIntraoperative CareAnesthesia Recovery PeriodIntraoperative PeriodNerve BlockMonitoring, IntraoperativeAnesthetics, LocalLidocainePentobarbitalBupivacaineAnesthesia, LocalAnesthesia, EpiduralIntraoperative ComplicationsAnesthesia, SpinalAnesthesia, ConductionAnesthesia, InhalationAnesthesia, ObstetricalAnesthesia, DentalAnesthetics, IntravenousAnesthetics, InhalationPropofolAdjuvants, AnesthesiaAnesthesiologyAnesthetics, CombinedIsofluraneMethyl EthersAnestheticsPostoperative ComplicationsNitrous OxideIntraoperative AwarenessFentanylHalothaneFrozen SectionsBlood Loss, SurgicalTreatment OutcomeAmbulatory Surgical ProceduresPreanesthetic MedicationProspective StudiesAnesthetics, GeneralNeuronavigationAnesthesia, Closed-CircuitKetaminePain, PostoperativeThiopentalAnesthesia, CaudalRetrospective StudiesSurgery, Computer-AssistedSurgical Procedures, OperativeIntubation, IntratrachealAnesthetics, DissociativeAnesthesia, IntratrachealEnfluranePreoperative CareTime FactorsConscious SedationXylazineCesarean SectionPostoperative PeriodAnesthesia Department, HospitalNeurosurgical ProceduresHemodynamicsElectroencephalographyAlfentanilConsciousness MonitorsOperating RoomsPostoperative CareLaparoscopyPostoperative Nausea and VomitingDouble-Blind MethodIntraoperative Neurophysiological MonitoringPerioperative CareHypnotics and SedativesAnesthesia and AnalgesiaAnalgesics, OpioidHypothermiaParathyroidectomyPrilocaineHypotensionMethohexitalConsciousnessSufentanilSurgical Procedures, Minimally InvasiveXenonMidazolamEchocardiography, TransesophagealNeuromuscular Nondepolarizing AgentsOphthalmologic Surgical ProceduresCraniotomyPain MeasurementCardiopulmonary BypassMepivacaineFollow-Up StudiesSurgical Procedures, ElectiveBlood PressurePiperidinesHeart RateSurgical Procedures, Minor