Het syndroom van Gilles de la Tourette

– Clinical data of 66 patients with Gilles de la Tourette syndrome are presented. An average delay of 8 years exists between the appearance of first symptoms and the age at diagnosis. In about 30 of these patients the first diagnosis has been made either by the parents or by the patient. A substantial number of patients show signs of obsessive-compulsive behaviour and ADD-H symptoms next to motor and phonic tics. In many cases it appears to be difficult to distinguish obsessive-compulsive symptoms from complex tics.