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Organophosphate poisoning

T C Marrs

    Pharmacology & Therapeutics
    |January 1, 1993
    PubMed
    Summary
    This summary is machine-generated.

    Organophosphates (OPs) are insecticides causing poisoning through acetylcholinesterase inhibition. Treatment involves atropine, pralidoxime, and diazepam, but OPs can have varied toxicological effects.

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    Area of Science:

    • Toxicology
    • Organic Chemistry
    • Pharmacology

    Background:

    • Organophosphates (OPs) are widely used as insecticides.
    • OP poisoning is a significant health concern, particularly in developing countries, and can result from accidental or intentional exposure.
    • The primary mechanism of OP toxicity involves the inhibition of acetylcholinesterase.

    Purpose of the Study:

    • To review the structure and diverse toxicological profiles of anticholinesterase organophosphates.
    • To outline the clinical presentation, diagnosis, and management of OP poisoning.
    • To discuss the varied effects of OPs beyond acute cholinergic syndrome.

    Main Methods:

    • Literature review of organophosphate structure, toxicology, and clinical management.
    • Analysis of diagnostic criteria for OP poisoning, including enzyme activity measurements.

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  • Summary of current antidotal strategies and potential long-term effects.

    • Main Results:

    • Organophosphates exhibit heterogeneous toxicology, with varying degrees of anticholinesterase activity.
    • Diagnosis relies on clinical signs, symptoms, and biochemical evidence of cholinesterase inhibition.
    • Treatment involves atropine, enzyme reactivators like pralidoxime, and supportive care with diazepam.
    • OPs can induce acute cholinergic syndrome, intermediate syndrome, and organophosphorus-induced delayed neuropathy.

    Conclusions:

    • Anticholinesterase organophosphates present a complex toxicological challenge with diverse clinical manifestations.
    • Effective management requires prompt diagnosis and appropriate therapeutic interventions.
    • Understanding the varied effects of OPs is crucial for public health and occupational safety.