Is spontaneous orofacial dyskinesia an artefact due to incomplete drug history?
One percent of elderly people living outside of institutions have spontaneous dyskinesia. Patients in institutions have an average prevalence of 5% for this disorder, with some rates as high as 37%. It is possible that many institutional cases are in fact occult tardive dyskinesia related to past antipsychotic drug use. A survey of an institutional sample of elderly patients revealed a much higher rate of past exposure to antipsychotics (86%) than of current use (26%) in organically impaired patients. Despite a high prevalence of dyskinesia, no cases were found without past exposure to antipsychotics.
Ticehurst
S B
SB
Hunter Area Mental Health Service, Newcastle, Australia.
D000368:Aged; D014150:Antipsychotic Agents / Q000008:administration & dosage / Q000009:adverse effects*; D003704:Dementia / Q000188:drug therapy; D004409:Dyskinesia, Drug-Induced / Q000209:etiology*; D006801:Humans; D008487:Medical History Taking; D009069:Movement Disorders / Q000209:etiology*; D009460:Neurologic Examination
D014150:Antipsychotic Agents