Jellyfish envenomation syndromes updated.

Area of Science:

• Marine biology
• Toxicology
• Immunology

Background:

• Jellyfish venoms contain toxic and antigenic polypeptides and enzymes harmful to humans.
• Reactions to jellyfish stings range from local skin eruptions to systemic and fatal outcomes.
• Accurate diagnosis and species identification are increasingly important with new therapeutic agents.

Purpose of the Study:

• To highlight the necessity of accurate diagnosis and species identification in managing jellyfish stings.
• To outline the diverse range of reactions and potential complications from jellyfish envenomation.
• To emphasize the importance of species-specific first aid and targeted treatments.

Main Methods:

• Review of clinical manifestations of jellyfish stings.
• Discussion of diagnostic methods including visualization, nematocyst examination, and serology.
• Consideration of environmental factors for predicting the offending species.

Main Results:

• Jellyfish stings can cause local, generalized, or delayed cutaneous reactions.
• Systemic effects include anaphylaxis and direct venom toxicity affecting the heart, kidneys, or respiratory system.
• Complications can involve fat atrophy, pigmentary changes, vasospasm, and gangrene.

Conclusions:

• Effective management of jellyfish stings requires precise diagnosis of the reaction type and the envenoming species.
• Species-specific first-aid measures are critical to prevent further envenomation.
• Treatment should be tailored to the specific syndrome, whether anaphylactic or toxin-mediated.