The British Journal of Psychiatry 158: 691-696 (1991)
© 1991 The Royal College of Psychiatrists
Facial dyskinesia: a 16-year follow-up study
HA McClelland, AV Metcalfe, TA Kerr, D Dutta and P Watson
St Nicholas Hospital, Newcastle upon Tyne.
The 109 female survivors of a mental hospital population surveyed in 1965
for facial dyskinesia were followed up 16 years later. The 99 survivors
with non-organic brain syndromes were analysed. Prevalence of dyskinesia
had risen from 18.4% to 46.5% during follow-up and its development was
significantly associated with neuroleptic dosage. Enlarged ventricles on
brain scans were significantly associated with dyskinesia, cognitive
impairment and neuroleptic prescribing.