[Longitudinal study of XXXX foci in childhood].

@entity1 @entity3389 @entity302
We performed the longitudinal study in @entity1 with focal spikes about characteristic changes in @entity302 foci for periods of between one year and 5 years 9 months. The 116 @entity302 @entity1 were evaluated, ranging in onset age from 10 month to 12 year 9 month old (mean age: 6 year 11 month). They were subdivided into four groups according to their region of foci: group 1, 41 @entity1 with the centro-temporal spikes ( @entity3389 ); group 2, 14 @entity1 with the occipital spikes; group 3, 6 @entity1 with frontal pole spikes; group 4, 55 @entity1 with the other focal spikes. EEG examinations were followed 6 months interval in each @entity1 , and total 412 EEG trancing were investigated. Migration of @entity302 foci was recognized in thirty eight @entity1 (32.8%): 17 (41%) in @entity3389 , 7 (50%) in occipital spikes, 4 (67%) in frontal pole spikes and 10 (18%) in other spikes. The mean time to the migration of next foci was 45.6 months in @entity3389 , 18.4 months in occipital spikes, 17.6 months in frontal pole spike and 61.4 months in other spikes. As to the regions of migrated foci, @entity3389 tended to move to the near and horizontal areas such as from central to temporal. Whereas, occipital spikes and frontal pole spikes tended to move to the distant and vertical areas such as from occipital to frontal pole and from frontal pole to occipital. But other spikes showed no tendency.(ABSTRACT TRUNCATED AT 250 WORDS)
