title: Perinatal outcomes in pregnancies with oligohydramnios after preterm premature rupture of membranes.
abstract: OBJECTIVE
  Our purpose was to determine whether singleton pregnancies complicated by preterm premature rupture of membranes (PPROM) and oligohydramnios are at an increased risk of having maternal and neonatal morbidity.
  
  
  METHODS
  We performed a retrospective analysis of 389 women with PPROM between 24 and 34 weeks of gestation in a single tertiary center during 2008-2014. Patients were divided into two groups on the basis of amniotic fluid index (AFI) < 5 cm (n = 188) or AFI ≥ 5 cm (n = 201). Perinatal outcomes were compared according to amniotic fluid volume. The Student's t-test and Mann-Whitney U test were used to compare variables with normal and abnormal distribution, respectively. Categorical variables were examined by the chi-square test.
  
  
  RESULTS
  Patients with an AFI < 5 cm demonstrated a significantly shorter latency to delivery (p < 0.001), a higher rate of clinical chorioamnionitis (p = 0.029) and emergency cesarean delivery (p = 0.043) and a lower neonatal Apgar score at first minute (p = 0.004).
  
  
  CONCLUSIONS
  Initial oligohydramnios after PPROM is associated with shorter latency to delivery, higher rate of clinical chorioamnionitis, higher rate of emergency cesarean delivery, and lower 1-min Apgar score.
authors.affiliation: a Department of Perinatology , Izmir Tepecik Training and Research Hospital , Izmir , Turkey.
authors.forename: Atalay
authors.initials: A
authors.lastname: Ekin
authors.affiliation: a Department of Perinatology , Izmir Tepecik Training and Research Hospital , Izmir , Turkey.
authors.forename: Cenk
authors.initials: C
authors.lastname: Gezer
authors.affiliation: a Department of Perinatology , Izmir Tepecik Training and Research Hospital , Izmir , Turkey.
authors.forename: Cuneyt Eftal
authors.initials: CE
authors.lastname: Taner
authors.affiliation: a Department of Perinatology , Izmir Tepecik Training and Research Hospital , Izmir , Turkey.
authors.forename: Mehmet
authors.initials: M
authors.lastname: Ozeren
mesh_terms: D000328:Adult; D001034:Apgar Score; D002585:Cesarean Section / Q000706:statistics & numerical data*; D002821:Chorioamnionitis / Q000209:etiology*; D005260:Female; D005322:Premature Rupture of Fetal Membranes / Q000503:physiopathology*; D006801:Humans; D007231:Infant, Newborn; D053208:Kaplan-Meier Estimate; D016104:Oligohydramnios / Q000503:physiopathology*; D011247:Pregnancy; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D012307:Risk Factors
keywords: Amniotic fluid index (AFI); chorioamnionitis; oligohydramnios; perinatal outcome; preterm premature rupture of membranes (PPROM)