Trisomy 13 (Patau syndrome)

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Information for parents about trisomy 13, a rare genetic condition that causes developmental delay and affects many different organ systems.

Key points

  • Trisomy 13 is a rare condition caused by an extra copy of chromosome 13.
  • Babies with trisomy 13 have many abnormalities, involving nearly every organ system in the body, as well as developmental delay.
  • It is difficult to predict the life expectancy of a baby with trisomy 13.
  • Parents of a baby with trisomy 13 are encouraged to seek genetic counselling.
Last updated: July 19th 2016