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Related Experiment Videos

Paraquat intoxication in Korea.

Kyu-Yoon Hwang1, Eun-Young Lee, Sae-Yong Hong

  • 1Department of Preventive Medicine, School of Medicine, Institute of Pesticide Poisoning, Soonchunhyang University, Choongnam, Republic of Korea.

Archives of Environmental Health
|August 27, 2002
PubMed
Summary

Acute paraquat intoxication is potentially lethal, with fatality risk increasing with ingestion quantity and positive urine tests. Intentional ingestion led to significantly higher death rates than accidental cases.

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Area of Science:

  • Toxicology
  • Environmental Health

Background:

  • Paraquat is a widely used herbicide with significant human toxicity.
  • Acute paraquat intoxication presents a serious public health challenge.

Purpose of the Study:

  • To investigate factors influencing fatality in acute paraquat intoxication.
  • To quantify the risk associated with paraquat ingestion and absorption.

Main Methods:

  • Retrospective analysis of 154 patients admitted for paraquat intoxication.
  • Assessment of paraquat exposure via ingested quantity and urinary paraquat levels.
  • Logistic regression to identify risk factors for mortality.

Main Results:

  • Overall fatality rate was 43.8%.

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  • Intentional ingestion had a 53.2% fatality rate versus 19.1% for accidental ingestion.
  • Increased quantity ingested and positive urinary paraquat tests significantly correlated with higher fatality risk.

    • Conclusions:

    • Paraquat ingestion poses a substantial lethal risk to humans.
    • The severity of paraquat poisoning and fatality risk are directly proportional to the ingested and absorbed dose.