Analgesia, EpiduralAnalgesia, ObstetricalAnalgesiaAnalgesia, Patient-ControlledAnesthesia, EpiduralBupivacaineLabor PainLabor, ObstetricAnalgesics, OpioidPain, PostoperativeAnesthetics, LocalAnesthesia, ObstetricalFentanylSufentanilPain MeasurementLabor Stage, FirstAmidesCesarean SectionMeperidineObstetric Labor ComplicationsMorphinePregnancyAlternative SplicingNerve BlockDelivery, ObstetricLabor Stage, SecondThoracotomyPostoperative Nausea and VomitingExtraction, ObstetricalDouble-Blind MethodAnesthesia, GeneralHydromorphoneAnalgesicsApgar ScoreAnesthesia, SpinalHeart Rate, FetalNalbuphineDystociaLidocaineUrinary RetentionMepivacainePuerperal DisordersInjections, SpinalPainLacerationsParityPerineumAcupuncture AnalgesiaProspective StudiesPostoperative CareFemoral NerveEpisiotomyObstetrical ForcepsThoracic Surgical ProceduresHematoma, Epidural, SpinalPerioperative CareObstetrics and Gynecology Department, HospitalAbdomenPruritusHypotensionPostoperative ComplicationsFeverIleusSagittal Sinus ThrombosisInjections, IntravenousPostpartum PeriodOxytocinCatheterizationTreatment OutcomeFetal MonitoringClonidineDrug CombinationsDrug Administration ScheduleUterine ContractionTime FactorsEpidural AbscessPatient SatisfactionProcainePregnancy OutcomeArthroplasty, Replacement, KneeThoraxTramadolInfant, Newborn