Approximately 90% of infants with<unk>  die within the first year of life. Those children who do survive past 1 year of life are typically severely disabled with intellectual disability, seizures, and psychomotor issues. Children with the mosaic variation are usually affected to a lesser extent. In a retrospective Canadian study of 174 children with trisomy 13, median survival time was 12.5 days. One and ten year survival was 19.8% and 12.9% respectively, including those who underwent aggressive surgical intervention.
Patau syndrome
Bart syndrome
McGillivray syndrome
Sotos syndrome
Keutel syndrome
Cortes Lacassie syndrome
Bart–Pumphrey syndrome
Fryns-Aftimos syndrome