Pregnancy outcomes after antepartum diagnosis of oligohydramnios at or beyond 34 weeks' gestation

Am J Obstet Gynecol. 2000 Apr;182(4):909-12. doi: 10.1016/s0002-9378(00)70345-0.

Abstract

Objective: Our purpose was to assess whether antepartum oligohydramnios is associated with adverse perinatal outcomes.

Study design: Women delivered between July 1, 1991, and September 30, 1996, who underwent ultrasonography at >/=34 weeks' gestation were analyzed. Oligohydramnios was defined as an amniotic fluid index </=50 mm. Perinatal outcomes in pregnancies with oligohydramnios were compared with those with an amniotic fluid index of >50 mm.

Results: In our analysis of 6423 pregnancies, 147 (2.3%) were complicated by oligohydramnios. This complication was associated with increased labor induction (42% vs 18%; P <.001), stillbirth (1. 4% vs 0.3%; P <.03), nonreassuring fetal heart rate (48% vs 39%; P <. 03), admission to the neonatal intensive care nursery (7% vs 2%; P <. 001), meconium aspiration syndrome (1% vs 0.1%; P <.001), and neonatal death (5% vs 0.3%; P <.001).

Conclusion: Antepartum oligohydramnios is associated with increased perinatal morbidity and mortality.

MeSH terms

  • Adult
  • Arrhythmias, Cardiac / embryology
  • Arrhythmias, Cardiac / etiology
  • Cesarean Section
  • Female
  • Fetal Death / etiology
  • Heart Rate, Fetal
  • Humans
  • Infant Mortality
  • Infant, Newborn
  • Intensive Care, Neonatal
  • Labor, Induced
  • Meconium Aspiration Syndrome / etiology
  • Oligohydramnios / complications
  • Oligohydramnios / diagnostic imaging*
  • Oligohydramnios / physiopathology*
  • Pregnancy
  • Pregnancy Outcome*
  • Time Factors
  • Ultrasonography, Prenatal*