[Psychiatric consultation and treatment for mentally handicapped persons exhibiting behavioral changes]

In three mentally handicapped people, two women aged 47 and 68 years respectively and a man aged 68, who suffered from behavioural changes that were not understood by the staff of the institution where the people lived, a psychiatric diagnosis was made by a consulting psychiatrist. The first woman had Down syndrome, she suffered from weight loss, loss of enjoyment and severe hallucinations. She was treated for a depressive disorder and recovered. The second woman yelled and threatened to hit the nursing staff. A bipolar condition was diagnosed and after unsuccessful drug treatment she was treated with electroconvulsion therapy upon which she recovered. The man had developed restlessness and verbal aggression with megalomanic episodes. A mood disorder was diagnosed which responded to valproic acid. In people with a mental handicap psychiatric disorders can be easily missed. The disorder can be complicated by an atypical presentation of symptoms, difficulty in obtaining information and limited knowledge and organization of the psychiatric services. Psychiatric consultation in people with mental retardation may lead to diagnosis and treatment of a psychiatric disorder.