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What is 4 year old child presents with developmental delay and episodes of multiple seizures types. 
The child did not respond despite multiple drug therapy. EEG showed 1-2Hz spike and wave pattern.
What is the diagnosis and explain in detail?
Lennox Gestaut syndrome
Age group: 2 - 12 years
Features: 
Developmental delay
Multiple seizures types
EEG: 1-2 spike - wave pattern
It is difficult to treat associated with poor prognosis.