Infantile Spasms, or West syndrome, is a kind of epilepsy that mostly affects children. The condition was referred to as West syndrome after the doctor who first identified it. Aside from West syndrome, doctors refer to it by a variety of names, including:
- Lightning spasms
- Epileptic spasms
- X-linked infantile spasm syndrome
- X-linked infantile spasms
- Salaam or jerk knife spasms
- Infantile myoclonic encephalopathy
- Tonic spasms with clustering
- Hypsarrhythmia
- Infantile epileptic encephalopathy
- Generalized flexion epilepsy
- Massive myoclonia
This is a very uncommon condition that affects less than 6 out of 10,000 infants. It affects most babies before they turn one year old, especially between months 4 and 8. Also, boys account for slightly more than half of all infants with infantile spasms.