Anesthetics, LocalNerve BlockAmidesAnestheticsIsofluraneAnesthetics, InhalationHalothaneEnfluraneMethyl EthersAnesthesia, InhalationLidocaineConsciousness MonitorsIntraoperative AwarenessMethoxyfluraneBupivacaineAnesthetics, IntravenousEthersAnesthesia, LocalFemoral NerveNitrous OxidePropofolTetracaineBenzocaineProcaineDose-Response Relationship, DrugEtherPrilocaineAnesthesiaMepivacaineEtidocaineDibucaineDepression, ChemicalAnesthesia, DentalAnesthetics, GeneralPulmonary AlveoliCarticaineAnesthetics, CombinedAnesthesia, EpiduralAnesthesia, ConductionElectroencephalographyAnesthesia, SpinalRats, Sprague-DawleyPain, PostoperativeHeart RateDogsAdjuvants, AnesthesiaAnesthesia, GeneralBrachial PlexusSciatic NerveAnesthetics, DissociativeFelypressinPain MeasurementAnesthesia, ObstetricalBlood PressureAnalgesia, EpiduralSodium ChannelsInjections, EpiduralSodium Channel BlockersAmbulatory Surgical ProceduresAnalgesia, ObstetricalInjectionsKetamineBatrachotoxinsDouble-Blind MethodAnesthesia, IntravenousAnesthesiologyAnesthesia Recovery PeriodTooth ExtractionFentanylNordefrinInjections, Intra-ArticularMandibular NerveEpinephrineThiopentalOctanolsCyclohexylaminesAmphibian VenomsEtomidateAnalgesics, OpioidInjections, Spinal