hypsarhythmia

hypsarrhythmia

 [hip″sah-rith´me-ah] a term for an electroencephalographic abnormality sometimes observed in infants, with random high-voltage slow waves and spikes arising from multiple foci and spreading to all cortical areas; the disorder is characterized by spasms or quivering spells, and is commonly associated with mental retardation.

hyp·sa·rhyth·mi·a

, hypsarrhythmia (hip'să-rith'mē-ă), The abnormal and characteristically chaotic electroencephalogram commonly found in patients with infantile spasms. [G. hypsi, high, + a- priv. + rhythmos, rhythm]

hyp·sa·rhyth·mi·a

(hip'să-ridh'mē-ă) The abnormal and characteristically chaotic electroencephalogram in patients with infantile spasms. [G. hypsi, high, + a- priv. + rhythmos, rhythm]