title: [The influence of patient-controlled epidural analgesia on labor progress and neonatal outcome].
abstract: OBJECTIVE
  The aim of the study was to check the influence of patient control epidural analgesia on labor progress and neonatal outcome.
  
  
  METHODS
  144 parturients were included into the clinical trial. In 73 cases patient control epidural analgesia was used and in 71 cases pethidine (meperidine) solution was given intravenously. Apgar score, umbilical artery pH, pain intensity the time of the first, second and third stage of labor the rate of episiotomy and uterine postpartum abrasions and the rate of caesarean sections and vaginal operative delivery were compared.
  
  
  RESULTS
  The time of the second stage of labor was significantly longer in the study group (40.99 vs 26.49 min, p- < 0.005), the neonatal outcome was comparable in both groups. There were no differences in the time of the first and the second stage of labor in primiparas and multiparas analyzed separately. Visual Analogue Score was lower in the study group (Ch(2)-12,48, p-0.25), especially in the subgroups of primiparas and multiparas.
  
  
  CONCLUSIONS
  Patient control epidural analgesia does not affect the time of the first and second stage of labor, oxytocin augmentation of labor may be the reason of that. This method is a more effective way of relieving labor pain. An increase of operative delivery is not observed after patient control epidural analgesia on condition that low doses and concentrations of analgesic drugs are used.
authors.affiliation: Klinika Połoźnictwa i Ginekologii Pomorskiego Uniwersytetu Medycznego, Szczecin, Polska. rafalrz123@gmail.com
authors.forename: Rafał
authors.initials: R
authors.lastname: Rzepka
authors.forename: Maciej
authors.initials: M
authors.lastname: Zukowski
authors.forename: Michał
authors.initials: M
authors.lastname: Michalczyk
authors.forename: Tomasz
authors.initials: T
authors.lastname: Nikodemski
authors.forename: Andrzej
authors.initials: A
authors.lastname: Torbé
authors.forename: Sebastian
authors.initials: S
authors.lastname: Kwiatkowski
authors.forename: Wioletta
authors.initials: W
authors.lastname: Mikołajek-Bedner
authors.forename: Ryszard
authors.initials: R
authors.lastname: Czajka
mesh_terms: D000759:Adjuvants, Anesthesia / Q000008:administration & dosage*; D000328:Adult; D016362:Analgesia, Obstetrical / Q000379:methods*; D016058:Analgesia, Patient-Controlled / Q000379:methods*; D000779:Anesthetics, Local / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D048949:Labor Pain / Q000188:drug therapy*; D007747:Labor Stage, First / Q000187:drug effects; D007748:Labor Stage, Second / Q000187:drug effects; D010121:Oxytocin / Q000008:administration & dosage; D010147:Pain Measurement; D011044:Poland; D011247:Pregnancy; D011256:Pregnancy Outcome; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D000759:Adjuvants, Anesthesia; D000779:Anesthetics, Local; D010121:Oxytocin