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oligohydramnios

Monday 17 May 2004

Oligohydramnios is a severe and common complication of pregnancy. The finding of oligohydramnios can be associated with fetal anomalies, PROM, uteroplacental insufficiency (eg, growth retardation, postdatism, abruptio placenta, significant maternal illness), abnormalities of twinning, and idiopathic oligohydramnios.

Synopsis

- oligohydramnios sequence

Etiology

- rupture of amniotic membranes (ROM)

  • preterm premature rupture of the fetal membranes

- chronic leakage of amniotic fluid

- fetal anuria and fetal oliguria

  • renal oligohydramnios
    • bilateral renal agenesis
    • autosomal recessive polycystic kidney disease (ARPKD)
    • renal tubular dysgenesis (#11156331#)
    • congenital absence of functional renal tissue or obstructive uropathy
    • urinary tract malformations
      • bilateral renal agenesis
      • bilateral renal dysplasia (BRD)
      • urethral atresia (urthral obstruction sequence, UOS)

- decreased renal perfusion with chronic reduction in fetal urine production

  • hypoxemia-induced redistribution of fetal cardiac output
  • growth-restricted fetuses
  • fetal chronic hypoxia with shunting of fetal blood from the kidneys to vital organs

- post-term gestation
- twin-twin transfusion syndrome
- tracheal atresia and tracheal atresia sequence (TAS)
- laryngeal atresia and laryngeal atresia sequence (LAS)

- uteroplacental insufficiency

  • growth retardation
  • postdatism
  • abruptio placenta
  • significant maternal illness

See also

- oligohydramnios sequence