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Related Experiment Videos

Catfish stings to the hand.

J W Mann1, J R Werntz

  • 1Matthews Orthopaedic Clinic, Orlando, Fla.

The Journal of Hand Surgery
|March 1, 1991
PubMed
Summary
This summary is machine-generated.

Catfish stings, while often minor, can cause severe tissue damage like gangrene, necessitating amputation. Prompt wound care, including irrigation and debridement, is crucial for managing these venomous injuries.

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Area of Science:

  • Marine Biology
  • Toxicology
  • Dermatology

Background:

  • Catfish possess venomous spines and skin toxins capable of causing significant envenomation.
  • Hand injuries are the most frequent presentation of catfish stings.
  • The venom contains multiple components contributing to severe local tissue damage.

Observation:

  • Two cases of severe hand stings from catfish are presented.
  • One case resulted in gangrene of digits, requiring amputation.
  • Symptoms include pain, swelling, erythema, and potential cyanosis.

Findings:

  • Catfish venom and skin toxins exhibit hemolytic, dermonecrotic, edema-promoting, and vasospastic properties.
  • These toxins can lead to severe tissue necrosis and potentially life-threatening complications.

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  • The severity of the sting is linked to the potent biological activities of the venom components.

    • Implications:

    • Effective management involves pain and vasospasm relief through anesthesia.
    • Empiric intravenous antibiotics are recommended to prevent secondary infections.
    • Surgical intervention, including irrigation and debridement, is vital for wounds with worsening symptoms to remove residual toxin and necrotic tissue.