Anesthesia, EpiduralAnalgesia, EpiduralAnalgesiaPerioperative CarePerioperative PeriodAnalgesia, ObstetricalAnesthesia, GeneralPain, PostoperativeAnesthesia, ObstetricalAnalgesia, Patient-ControlledBupivacaineAnesthetics, LocalAnalgesics, OpioidAnesthesiaAnesthesia, SpinalLidocaineAnesthesia, ConductionPain MeasurementPostoperative ComplicationsIntraoperative ComplicationsSurgical Procedures, OperativeAnesthesia, LocalPreanesthetic MedicationPreoperative CareAnesthetics, CombinedMepivacaineProspective StudiesAnesthesia, CaudalFentanylCesarean SectionAnesthesia, InhalationAnesthesia, IntravenousTreatment OutcomeProcaineNerve BlockAdjuvants, AnesthesiaSurgical Procedures, ElectiveAutonomic Nerve BlockBlood Loss, SurgicalDouble-Blind MethodTime FactorsVascular Surgical ProceduresMorphineRetrospective StudiesMonitoring, IntraoperativeBlood TransfusionAnesthesia Recovery PeriodMeperidineAmidesShiveringAnesthesia, DentalEtilefrineRisk FactorsSkin TemperatureLabor, ObstetricRisk AssessmentEpidural SpaceAnesthetics, InhalationIntraoperative PeriodEphedrineMethyl EthersEpinephrineHorner SyndromeIsofluraneLabor Stage, FirstPregnancyAnesthetics, IntravenousThoraxHemodynamicsPropofolLumbosacral RegionPainAnesthesiologyAnalgesicsInjections, EpiduralThoracic VertebraeAcupuncture AnalgesiaPuerperal DisordersHypothermiaSufentanilPostoperative PeriodNitrous OxideDihydroergotamineRitodrineAnestheticsBody Temperature RegulationHysterectomyKetamineBlood PressureThoracotomyIntraoperative CareAmbulatory Surgical ProceduresPiroxicamHypotensionHeart RatePostoperative Nausea and VomitingConscious SedationSensationLabor PainLength of Stay