Polyhydramnios Flashcards

1
Q

Define

A

Polyhydramnios – AFI >95th centile, 2-3L fluid, deepest pool >8cm | affects 1-4% pregnancies

Risk factors for polyhydramnios (may be idiopathic):

Basics anything which incr foetal urine production or decreases foetal swallowing

Maternal

  • Diabetes mellitus
  • AV fitsula
  • Chorioangioma

Foetal

  • Multiple pregnancy -> usually TTTS causes this
  • Idiopathic
  • Oesophageal/duodenal atresia -> baby unable to swallow Amniotic fluid
  • Neuromusc disorders/ Anencephaly -> baby unable to swallow fluid
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2
Q

Symptoms

A

Symptoms of underlying cause

Abdomen – increased fundal height, impalpable foetal parts, tense abdo

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3
Q

Investigations

A

Liquor volume, foetal growth, umbilical artery dopplers, exclude foetal anomalies

Other – exclude maternal diabetes

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4
Q

Management

A

Antenatal monitoring of foetus, ensure diabetes control, paediatrician present at delivery

Amnioreduction (if gross polyhydramnios à discomfort)

COX inhibitors to decrease foetal urine output

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5
Q

Complication

A

Pre-term labour (PTL), malpresentation, placental abruption, cord prolapse, PPH, increased risk CS

o Prognosis – increased perinatal morbidity and mortality, related to PTL/congenital

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