EM Vivas · Toxicology and environmental emergencies
Stingray injury — the data viva
A clinical data-viva on stingray envenomation — thermolabile venom, hot-water immersion and wound exploration.
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Interpretation
Reveal interpretationShowHide
First aid — hot-water immersion: Stingray venom most often causes severe pain on contact. In a 119-case ED series, 88% treated with hot-water immersion alone had complete relief within 30 minutes without other analgesic, with no thermal burns; those given one analgesic dose plus immersion needed no second dose. A scoping review finds general consensus for hot-water immersion or ice-pack treatment across marine envenomations — but no universally superior treatment.[1][2]
Wound management:
- After immersion, explore every wound for the retained stinger, integumentary sheath, or barb — the stinger and sheath can embed in soft tissue; although barbs can be radio-opaque, radiography failed to detect barbs in the series, so explore regardless of the X-ray.
- Irrigate copiously with saline; debride devitalised tissue.[1]
Antibiotics: high bacterial contamination in these puncture wounds — significant wound infections returned to the ED when prophylaxis was omitted — so standard antibiotic prophylaxis may be prudent.[1]
Tetanus: A stingray puncture is tetanus-prone — assess and give a booster or immunoglobulin as indicated.[3]
Principles: thermolabile venom — hot water first; explore for the retained barb; do not close; antibiotics for deep or contaminated wounds; tetanus.[1][3]
References3ShowHide
- [1]Clark RF, Girard RH, Rao D, et al. Stingray envenomation: a retrospective review of clinical presentation and treatment in 119 cases. The Journal of Emergency Medicine, 2007.PMID 17630073
- [2]Niżnik Ł, Jabłońska K, Orczyk M, et al. Hot-water immersion (HWI) or ice-pack treatment (IPT) as first aid for human envenomations — a scoping review. Toxins, 2024.PMID 38922167
- [3]Cooke MW. Are current UK tetanus prophylaxis procedures for wound management optimal? Emergency Medicine Journal, 2009.PMID 19934122