Intrauterine growth restriction

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Small for Gestational Age (SGA): are in the lowest 10th percentile and may be normal or due to IUGR

Asymmetric IUGR

  • Secondary to malnutrition
  • Effects abdomen first, only later head
  • May have Oligohydramnios
  • If treated, normal development
  • Severe, late asymmetric IUGR difficult to differentiate from symmetric IUGR

Symmetric IUGR

  • Diminished cellular growth
  • Secondary to fetal insult (chromosomal abnormality, drugs, infections, etc)
  • Developmental delays