Cone shell envenomation: Difference between revisions
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==Background== | ==Background== | ||
[[File:Textile cone.jpg|frameless|right|A dangerous cone to handle, Conus textile.]] | |||
*Also known as cone snails | |||
*Conus genus includes 800 species<ref>Kohn AJ. Conus Envenomation of Humans: In Fact and Fiction. Toxins (Basel). 2018;11(1):10. Published 2018 Dec 27. doi:10.3390/toxins11010010</ref> | *Conus genus includes 800 species<ref>Kohn AJ. Conus Envenomation of Humans: In Fact and Fiction. Toxins (Basel). 2018;11(1):10. Published 2018 Dec 27. doi:10.3390/toxins11010010</ref> | ||
*Human fatality rates 15-75%<ref>Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/</ref> | *Human fatality rates 15-75%<ref>Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/</ref> | ||
*Neurotoxin, paralytic venoms | *Neurotoxin, paralytic venoms with a variety of neuromuscular effects through glutamate, adrenergic, serotonin, and cholinergic pathways | ||
==Clinical Features== | ==Clinical Features== | ||
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*Death can occur in 1-5 hours | *Death can occur in 1-5 hours | ||
==Differential Diagnosis | ==Differential Diagnosis<ref>Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/</ref>== | ||
<ref>Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/</ref> | *[[Anaphylaxis]] | ||
*Anaphylaxis | |||
{{Marine envenomation DDX}} | |||
==Evaluation== | ==Evaluation== | ||
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===Diagnosis=== | ===Diagnosis=== | ||
*Clinical history | |||
==Management== | ==Management== | ||
''No antivenom available'' | |||
*ABC's | *ABC's | ||
*Prepare for mechanical ventilation with supportive care | *Hot water (40C-50C) may provide pain relief based on anecdotal reports | ||
*Most patients will develop a chronic wound at the | *Prepare for [[mechanical ventilation]] with supportive care | ||
*Most patients will develop a chronic wound at the envenomation site with ulceration that often requires persistent care. | |||
==Disposition== | ==Disposition== | ||
*ICU if intubated | |||
*No clear information on length of observation | |||
==See Also== | ==See Also== | ||
*[[Marine toxins, envenomations, and bites]] | |||
==External Links== | ==External Links== | ||
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==References== | ==References== | ||
<references/> | <references/> | ||
[[Category:Environmental]] | |||
[[Category:Dermatology]] |
Latest revision as of 14:37, 25 November 2021
Background
- Also known as cone snails
- Conus genus includes 800 species[1]
- Human fatality rates 15-75%[2]
- Neurotoxin, paralytic venoms with a variety of neuromuscular effects through glutamate, adrenergic, serotonin, and cholinergic pathways
Clinical Features
- Sharp prick to extreme pain
- Envenomation site: numbness, swelling, ischemia, cyanosis
- Systemic: weakness, sweating, visual changes, muscle paralysis, respiratory failure, cardiovascular collapse, coma
- Death can occur in 1-5 hours
Differential Diagnosis[3]
Marine toxins, envenomations, and bites
- Toxins
- Ciguatera
- Scombroid
- Tetrodotoxin (e.g. pufferfish)
- Shellfish poisoning
- Amnesic shellfish poisoning
- Diarrheal shellfish poisoning
- Neurotoxic shellfish poisoning
- Paralytic shellfish poisoning
- Stingers
- Venomous fish
- Cone shell
- Lionfish
- Sea urchins
- Crown-of-Thorns Starfish
- Stonefish
- Other: Catfish, zebrafish, scorpion fish
- Nematocysts
- Coral reef
- Fire coral
- Jellyfish (Cnidaria)
- Portuguese man-of-war
- Sea anemones
- Seabather's eruption
- Phylum porifera (sponges)
- Bites
- Infections
Evaluation
Workup
- Due to systemic symptoms CMP, Chest X-ray, EKG are reasonable[4]
Diagnosis
- Clinical history
Management
No antivenom available
- ABC's
- Hot water (40C-50C) may provide pain relief based on anecdotal reports
- Prepare for mechanical ventilation with supportive care
- Most patients will develop a chronic wound at the envenomation site with ulceration that often requires persistent care.
Disposition
- ICU if intubated
- No clear information on length of observation
See Also
External Links
References
- ↑ Kohn AJ. Conus Envenomation of Humans: In Fact and Fiction. Toxins (Basel). 2018;11(1):10. Published 2018 Dec 27. doi:10.3390/toxins11010010
- ↑ Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/
- ↑ Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/
- ↑ Kapil S, Hendriksen S, Cooper JS. Cone Snail Toxicity. [Updated 2020 Sep 3]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2020 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK470586/