The Dermatological Effects of Box Jellyfish Envenomation in Stinging Victims in Thailand: Underestimated Severity.

Wilderness Environ Med

Department of Community Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand. Electronic address:

Published: December 2023

AI Article Synopsis

  • * A retrospective analysis of 124 victims identified severe skin reactions ranging from edema to necrosis and established that direct contact leads to more serious injuries.
  • * Recommendations for first aid stress the importance of rinsing the wound with vinegar for 30 seconds and performing CPR if needed, while also noting that tentacle removal may not be necessary as they can detach on their own.

Article Abstract

Introduction: The dermatological effects of box jellyfish envenomation among stinging victims in Thailand are not well reported, particularly concerning chronic effects. For first aid, different recommendations indicate the necessity for the removal of tentacles in life-threatening situations. This study aimed to describe the dermatological effects of box jellyfish envenomation and propose recommendations regarding first aid for victims in urgent care or life-threatening situations.

Methods: Surveillance systems and Toxic Jellyfish Networks were established to improve detection and investigation. The networks investigated all severe victims of jellyfish envenomation. A retrospective study was conducted, and victims of stinging by box jellyfish investigated from 1999 to 2021 were included.

Results: One hundred and twenty-four victims were recorded. The majority of victims were males (55%), tourists (69%), and Thai nationals (49%). Direct contact had more severe consequences than indirect contact. Dermatological effects included edema, erythematous caterpillar track-like rash, blistering, bullae, papular eruption, necrosis, digital gangrene, recurrent dermatitis, dermal hypersensitivity, numbness, lichenification, hyperpigmentation, keloids, and scarring. Suffering and healing continued from several weeks to many years. Victims with multiple-tentacle box jellyfish stings had papular eruptions and greater severity of skin issues. All fatally envenomed victims collapsed within a few minutes and received incorrect/no first aid. The proposed first aid for life-threatening box jellyfish stings is continuous irrigation of the wound with vinegar for at least 30 s and initiation of cardiopulmonary resuscitation if there is no respiration or heartbeat. Tentacles often detach spontaneously, and removal is not always necessary, thus saving time.

Conclusions: The findings provide input for improving diagnosis and treatment guidelines.

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Source
http://dx.doi.org/10.1016/j.wem.2023.06.007DOI Listing

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