[Clinical-bioelectric correlation of spastic seizures in children--prospective study]

Serial electroencephalographic (EEG) records were registered in 63 children (38 boys and 25 girls) at the age between 1 month to 7 years in 1981-1987. Examinations were done while awake and during spontaneous sleep. Evaluation was performed in relation to the age and physiological status during examination. Three hundred ninety two EEGs recorded. The following types were found in the initial EEG records in 63 children: 1-normal, 29-hypo-arrythmic, 16 with generalized paroxysmal abnormalities, 12 with localized abnormalities, and 4 with generalized abnormalities. Table 1--illustrates types of the disorders in initial EEG records. Table 2--evolution of the disorders. Table 3--evolution of the disorders in EEG records in relation to the clinical data. Evaluated data concerning types of EEG records, their evolution during observation, as well as their correlation with some clinical data showed: the most significant relation between types of the initial EEG records and clinical data--occurrence of other types of seizures before infantile spasms, abnormal neurological status and delayed psychomotor development--in relation to hypo-arrythmic records was found. The most significant tendency towards normalization of the initial EEG records was found in relation to generalized paroxysmal abnormalities whereas the least significant tendency was found in relation to initial EEG records with localized abnormalities, and less significant with hypo-arrythmic, normalization of EEG records is most significantly related to: disappearance of infantile spasms and occurrence of this type of seizures as the only spasms, less frequent neurological abnormalities and also delayed psychomotor development.