Analgesia, EpiduralAnalgesia, ObstetricalHematomaAnalgesiaAnalgesia, Patient-ControlledAnesthesia, EpiduralBupivacaineLabor PainHematoma, Epidural, CranialHematoma, SubduralLabor, ObstetricAnalgesics, OpioidPain, PostoperativeAnesthetics, LocalAnesthesia, ObstetricalHematoma, Subdural, ChronicFentanylHematoma, Epidural, SpinalSufentanilPain MeasurementLabor Stage, FirstHematoma, Subdural, AcuteAmidesCesarean SectionMeperidineObstetric Labor ComplicationsHematoma, Subdural, IntracranialMorphinePregnancyNerve BlockDelivery, ObstetricLabor Stage, SecondPostoperative Nausea and VomitingThoracotomyExtraction, ObstetricalAnesthesia, GeneralDouble-Blind MethodHydromorphoneAnalgesicsHematoma, Subdural, SpinalApgar ScoreAnesthesia, SpinalHeart Rate, FetalNalbuphineUrinary RetentionDystociaPuerperal DisordersLidocaineMepivacaineProspective StudiesInjections, SpinalPainLacerationsParityPostoperative CarePerineumAcupuncture AnalgesiaObstetrical ForcepsCerebral HemorrhageFemoral NervePostoperative ComplicationsEpisiotomyTrephiningPerioperative CareThoracic Surgical ProceduresAbdomenHypotensionTreatment OutcomeSagittal Sinus ThrombosisObstetrics and Gynecology Department, HospitalPruritusFeverTomography, X-Ray ComputedIleusCraniotomyInjections, IntravenousCatheterizationPostpartum PeriodOxytocinEpidural AbscessFetal MonitoringTime FactorsClonidineDrug Administration ScheduleRetrospective StudiesUterine ContractionDrug CombinationsPatient SatisfactionPregnancy OutcomeSubdural SpaceProcaineArthroplasty, Replacement, KneePostoperative PeriodThoraxSkull FracturesInfant, NewbornOrthopedic ProceduresTramadol