Etiology Number of Patients
Lennox Gastaut syndrome 6
Encephalitis 4
Tuberous sclerosis 3
Tumor 3
Head injury 2
Porencephaly 1
Prenatal encephalopathy 1
Unknown 19
 
Antiepileptic drugs
1 drug 8
2 drugs 23
3 drugs 7
4 drugs 1
 
Epilepsy Type
Simple partial 2
Complex partial 13
Complex partial with secondary  
generalization 8
Generalized tonic-clonic 3
Atypical absence 4
Tonic 2
Mixed generalized 7
Table 1: Clinical characteristics of the patients at base line In 24 month period, 34 patients were treated with the