Generalized spike-and-wave patterns in XXXX : clinical correlates.

@entity1 @entity410 @entity739 @entity302 @entity2048 @entity3762
All electroencephalograms performed in our institution between 1980 and 1990 were reviewed. The clinical characteristics of @entity1 with @entity302 and generalized spike-and-wave (SW) patterns were analyzed. The SW patterns were classified according to their frequency. Electroencephalograms of 154 @entity1 with @entity302 revealed SW patterns. Absence @entity410 were the most common first @entity410 , but partial @entity410 were frequent. More than 40% had several types of @entity410 . Sixty percent of the @entity302 syndromes were generalized, but almost 25% were partial. The typical SW pattern was associated with @entity2048 , a normal examination and computed tomographic scan, @entity3762 , monotherapy, freedom from @entity410 , and lack of recurrence. The slow SW pattern was associated with @entity739 ; a younger age at @entity410 onset; atonic, @entity410 ; an abnormal examination and computed tomographic scan; cryptogenic or symptomatic generalized @entity302 or symptomatic partial @entity302 ; polytherapy; and poor @entity410 control. The fast SW pattern was associated with secondary generalized, partial, @entity410 ; a normal computed tomographic scan; cryptogenic partial @entity302 ; @entity410 ; and @entity410 recurrence. @entity302 with a typical SW pattern should be considered benign, @entity302 with a slow SW pattern malignant, and @entity302 with a fast SW pattern treacherous.
