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Chronic arsenic poisoning.

Alan H Hall1

  • 1Department of Emergency Medicine, Division of Toxicology, Texas Tech University Health Sciences Center-El Paso, El Paso, TX, USA. ahall@elp.rr.com

Toxicology Letters
|March 1, 2002
PubMed
Summary
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Chronic arsenic poisoning, often from contaminated water or medications, causes skin changes, organ damage, and cancers. Treatment involves chelating agents like dimercaprol (BAL) to remove arsenic from the body.

Area of Science:

  • Toxicology
  • Environmental Health
  • Occupational Medicine

Background:

  • Arsenic poisoning can result from occupational exposure, attempted homicide, or chronic ingestion of contaminated water or medications.
  • Widespread arsenic contamination in groundwater poses a significant public health risk in various countries.
  • Chromated copper arsenate (CCA)-treated wood is safe unless burned, releasing toxic fumes.

Purpose of the Study:

  • To summarize the clinical manifestations and health risks associated with arsenic poisoning.
  • To highlight the diverse range of symptoms and long-term consequences of arsenic exposure.
  • To outline current treatment strategies for arsenic toxicity.

Main Methods:

  • Review of clinical symptoms and conditions associated with arsenic exposure.

Related Experiment Videos

  • Analysis of epidemiological data on arsenic-contaminated water sources.
  • Discussion of toxicological mechanisms and carcinogenic potential of arsenic.

    • Main Results:

    • Common symptoms include skin pigmentation changes, hyperkeratosis, gastrointestinal issues, anemia, and liver disease.
    • Severe complications can involve noncirrhotic portal hypertension, bone marrow depression, peripheral neuropathy, and encephalopathy.
    • Chronic arsenic exposure is linked to increased risk of skin, lung, and other cancers.

    Conclusions:

    • Arsenic poisoning presents with a wide spectrum of symptoms, necessitating early diagnosis and intervention.
    • Environmental and occupational factors play crucial roles in arsenic exposure and subsequent toxicity.
    • Chelating agents like dimercaprol (BAL), dimercaptosuccinic acid (DMSA), and dimercaptopanesulfonic acid (DMPS) are primary treatments for arsenic toxicity.