oligohydramnios

Introduction

Deficiency of amniotic fluid

Etiology

• premature rupture of placental membranes
• fetal oligouria

Epidemiology

• 4% of pregnancies

Pathology

• compression of the fetal abdomen limiting movement of the diaphragm
• pulmonary hypoplasia
• fetal heart conduction abnormalities
• umbilical cord compression
• poor tolerance of labor
• fetal acidosis

Physical examination

• check blood pressure

Clinical manifestations

• meconium staining of the amniotic fluid
• lower Apgar scores

Laboratory

• antinuclear antibody screen for SLE
• liver function tests
• complete blood count
  • low platelet count (HELLP syndrome)
• urine protein for proteinuria
• serum uric acid for elevation

Diagnostic procedures

• fetal ultrasound

Complications

• high mortality

Management

• bedrest
• oral hydration
• OB-Gyn consult

More general terms

• pregnancy disorder; obstetric disorder; pregnancy complication
• sign/symptom

Additional terms

• amniotic fluid
• polyhydramnios (hydramnios)