Intravenous paraquat poisoning.

Area of Science:

• Toxicology
• Emergency Medicine
• Clinical Case Reports

Background:

• Paraquat is a highly toxic herbicide with oral ingestion being the most common route of poisoning.
• Intravenous paraquat poisoning is an uncommon but severe presentation, often linked to suicide attempts.
• Clinical manifestations of intravenous paraquat poisoning can differ significantly from oral ingestion.

Observation:

• A case report of an intravenous drug abuser who intentionally injected paraquat.
• The patient received hemoperfusion, cyclophosphamide, and methylprednisolone pulse therapy.
• Respiratory distress (dyspnea) developed approximately 48 hours post-exposure.

Findings:

• Despite aggressive treatment, the patient experienced transient improvement followed by death from severe hypoxia.
• This case, along with prior reports, underscores the poor prognosis associated with intravenous paraquat poisoning.
• Current management strategies appear to be largely ineffective in preventing fatal outcomes.

Implications:

• There is a critical need for further research into effective treatments for intravenous paraquat poisoning.
• Healthcare providers should maintain a high index of suspicion for intravenous paraquat exposure in at-risk populations.
• The findings emphasize the severe toxicity and challenges in managing paraquat administered via non-oral routes.