Last reviewed dd mmm yyyy. Last edited dd mmm yyyy
This condition is characterised by involuntary movements, usually chorea, athetosis and dystonia of the limbs, trunk, face and bulbar muscles.
The onset of this condition is delayed for some months after birth. Initially there is hypotonia, then active reflexes in infancy developing to choreoathetosis in childhood. The severity of the choreoathetosis can vary from mild incoordinate movements to constant writhing movements resulting in complete helplessness.
Intellect may be normal but communication may be difficult because of marked dysarthria, and in the case of kernicterus, deafness.
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page