At what age do infantile spasms (IS) start?

Shaun A. Hussain, MD
The peak age of onset of infantile spasms is between 4 and 12 months. Infantile spasms will usually go away by itself by the age of 24 months. The goal of therapy and early diagnosis is to treat the disorder as quickly as possible and to abolish it well before 2 years of age, when irreversible damage will have occurred.

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