Acute organophosphate poisoning presenting with choreo-athetosis. 1984

J Joubert, and P H Joubert, and M van der Spuy, and E van Graan

Although it is known that extrapyramidal function is dependent upon a balance between cholinergic and dopaminergic effects, only anti-dopaminergic substances commonly induce extrapyramidal symptoms. This paper describes a patient who ingested chlorpyrifos and presented with choreo-athetosis and depressed cholinesterases. She responded to atropine therapy and made a complete recovery. Although not often described excessive cholinergic activity may also produce extrapyramidal symptoms.

UI MeSH Term Description Entries
D002802 Cholinesterases Acylcholineacylhydrolase,Cholase,Cholinesterase
D004390 Chlorpyrifos An organothiophosphate cholinesterase inhibitor that is used as an insecticide and as an acaricide. Dursban,Lorsban
D004409 Dyskinesia, Drug-Induced Abnormal movements, including HYPERKINESIS; HYPOKINESIA; TREMOR; and DYSTONIA, associated with the use of certain medications or drugs. Muscles of the face, trunk, neck, and extremities are most commonly affected. Tardive dyskinesia refers to abnormal hyperkinetic movements of the muscles of the face, tongue, and neck associated with the use of neuroleptic agents (see ANTIPSYCHOTIC AGENTS). (Adams et al., Principles of Neurology, 6th ed, p1199) Dyskinesia, Medication-Induced,Medication-Induced Dyskinesia,Drug-Induced Dyskinesia,Drug-Induced Dyskinesias,Dyskinesia, Drug Induced,Dyskinesia, Medication Induced,Dyskinesias, Drug-Induced,Dyskinesias, Medication-Induced,Medication Induced Dyskinesia,Medication-Induced Dyskinesias
D005116 Extrapyramidal Tracts Uncrossed tracts of motor nerves from the brain to the anterior horns of the spinal cord, involved in reflexes, locomotion, complex movements, and postural control. Extrapyramidal Tract,Tract, Extrapyramidal
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001285 Atropine An alkaloid, originally from Atropa belladonna, but found in other plants, mainly SOLANACEAE. Hyoscyamine is the 3(S)-endo isomer of atropine. AtroPen,Atropin Augenöl,Atropine Sulfate,Atropine Sulfate Anhydrous,Atropinol,Anhydrous, Atropine Sulfate,Augenöl, Atropin,Sulfate Anhydrous, Atropine,Sulfate, Atropine

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