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Oligohydramnios

Oligohydramnios refers to a situation where the amniotic fluid volume is less than expected for gestational age. Often these fetuses have < 500 mls of amniotic fluid.

Epidemiology

The estimated prevalence can be up to ~ 6% of pregnancies 4.

Pathology

Causes

The causes of oligohydramnios are protean and one way to simplify it is by using the following mnemonic - DRIPPC 

Associations

Radiographic assessment

Antenatal ultrasound

Several sonographic criteria can be used which include

Complications

Treatment and prognosis

Development of oligohydramnios early is pregnancy is generally a poor prognostic marker. An amnio-infusion can be carried in severe cases in the appropriate situation.

See also

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