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Cerebellar and thalamic metabolic changes visualized by [18]-FDG-PET in olanzapine-induced acute akathisia.

AbstractOBJECTIVES: Akathisia is a clinical important symptom, frequently induced by neuroleptic treatment. Despite its clinical importance, less is known about its pathophysiology. METHODS: Using [18]-FDG-PET, imaging patterns of cortical metabolic activity were obtained in a patient during olanzapine-induced akathisia and after recovery. RESULTS: Akathisia was characterized by a reduced metabolic activity in thalamus and cerebellum. After discontinuing medication akathisia disappeared, reflected by a recovery of metabolic activity in these brain areas. CONCLUSION: [18]-FDG-PET may be useful to identify cortical regions mediating clinical aspects of drug-induced akathisia, thereby offering a deeper insight into the pathophysiology of this serious side effect.
AuthorsMichael Landgrebe, Jörg Marienhagen, Berthold Langguth, Philipp Sand, Peter Eichhammer, Göran Hajak (Affiliation: Department of Psychiatry, Psychosomatics and Psychotherapy, University of Regensburg, Germany.)
JournalNeuro endocrinology letters (Neuro Endocrinol Lett) Vol. 27 Issue 6 Pg. 737-9 (Dec 2006) ISSN: 0172-780X Sweden
PMID17187000 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Antipsychotic Agents
  • Benzodiazepines
  • Radiopharmaceuticals
  • olanzapine
  • Fluorodeoxyglucose F18
Topics
  • Acute Disease
  • Akathisia, Drug-Induced (metabolism, radionuclide imaging)
  • Antipsychotic Agents (adverse effects, therapeutic use)
  • Benzodiazepines (adverse effects, therapeutic use)
  • Cerebellum (drug effects, metabolism, radionuclide imaging)
  • Fluorodeoxyglucose F18 (diagnostic use)
  • Humans
  • Male
  • Middle Aged
  • Positron-Emission Tomography (methods)
  • Radiopharmaceuticals (diagnostic use)
  • Schizophrenia (complications, drug therapy, radionuclide imaging)
  • Thalamus (drug effects, metabolism, radionuclide imaging)