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The use of electroencephalography in an in-patient mental handicap population

Department of Psychiatry, Charing Cross and Westminster Medical School, St Dunstan's Road, London W6 8RP

S. Tamrazian, Registrar in Psychiatry

St Mary's Hospital Rotation, London

G. Duffield, Research Registrar in Psychiatry

Charing Cross and Westminster Rotation, London

I. Singh, Consultant Psychiatrist^*

Leavesden and Hillingdon Hospitals

^* Correspondence

The use of electroencephalography over a three year period in a large mental handicap hospital was studied. There were no significant differences in its use according to sex or intelligence. The majority of requests were made following seizures and in the investigation of behavioural abnormality. In over a quarter of cases the EEG requests appeared to be inappropriate. It is suggested that a more cost-effective use would result if EEGs were requested only in those cases in which the result will lead to a change in the management of the patient.