Analgesics, OpioidAnesthetics, IntravenousAnalgesia, EpiduralSufentanilAdjuvants, AnesthesiaAnesthesia, IntravenousAlfentanilPain, PostoperativeBupivacaineAdministration, CutaneousPreanesthetic MedicationAnesthetics, CombinedAnalgesia, ObstetricalPropofolAnesthesia, GeneralMorphineAnalgesia, Patient-ControlledAnesthesia Recovery PeriodMidazolamPain MeasurementAnesthetics, LocalReceptors, Opioid, muNitrous OxideDouble-Blind MethodBreakthrough PainNarcoticsIsofluraneAnesthetics, InhalationAnesthesia, EpiduralNaloxoneAnesthesia, ObstetricalMethyl EthersDose-Response Relationship, DrugDroperidolAnalgesiaPainConscious SedationInjections, SpinalAnesthesiaMeperidineAnesthesia, InhalationHypnotics and SedativesDrug InteractionsAnestheticsTransdermal PatchInjections, IntravenousNarcotic AntagonistsAdministration, BuccalInfusion PumpsCesarean SectionInfusions, IntravenousPostoperative Nausea and VomitingEnfluraneNeuromuscular Nondepolarizing AgentsHemodynamicsAnesthesia, SpinalAnalgesicsThiopentalOxycodoneTime FactorsIntubation, IntratrachealLaryngismusAmbulatory Surgical ProceduresKetaminePiperidinesAnesthesia, IntratrachealSuccinylcholineDexmedetomidineLidocaineDrug ToleranceNalbuphineThoracotomyOxymorphoneRespirationDermatologic Surgical ProceduresDeep SedationMuscle RigidityLoperamideProspective StudiesMandibular OsteotomyHydromorphoneHeart RateApneaMethohexitalEtomidateVecuronium BromideBuprenorphineUnconsciousnessNeuroleptanalgesiaMedetomidineDogsIntraoperative PeriodSupratentorial NeoplasmsDrug OverdoseClonidineAndrostanolsNerve BlockTetanyAtracuriumBlood Pressure