Although epilepsy is more common in persons with trisomy 21 (Down synd
rome) than in the general population, the mechanisms by which seizures
are generated in this population have received little attention. It i
s likely that this increased seizure susceptibility is due to a combin
ation of medical risk factors and inherent neurologic abnormalities ch
aracteristic of Down syndrome. In this review clinical aspects of seiz
ures among individuals with Down syndrome were described and possible
mechanisms by which the trisomy 21 brain may generate seizures were ex
plored.