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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 ml 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 them is by using the following mnemonic: DRIPPC 

Associations

Radiographic assessment

Antenatal ultrasound

Several sonographic criteria can be used which include:

Treatment and prognosis

Development of oligohydramnios early in pregnancy is generally a poor prognostic marker. Amnio-infusion can be attempted in severe cases, if appropriate.

Complications

See also


Related articles

Ultrasound - obstetric

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