Difference between revisions of "Neurotoxic shellfish poisoning"

(Background)
(Diagnosis)
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==Diagnosis==
 
==Diagnosis==
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*Based on symptoms and history of ingesting shellfish or proximity to red tide
  
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*If ingested
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**Similar to [[ciguatera]]
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**GI symptoms - vomiting, diarrhea, abdominal cramping; usually within 30 minutes to 3 hours of ingestion
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**Neurologic symptoms - parethesias, dizziness, ataxia. Can also see hot/cold temperature sensation reversal
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*If inhaled
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**Upper respiratory tract irritation, rhinorrhea, bronchoconstriction
  
 
==Differential Diagnosis==
 
==Differential Diagnosis==

Revision as of 22:49, 6 January 2016

Background

  • Associated with red tide
  • Seen in Southeast US, Gulf of Mexico, Caribbean, New Zealand
  • Caused by brevetoxins secreted by dinoflagellates during algal blooms, which are then ingested by shellfish and/or aerosolized

Diagnosis

  • Based on symptoms and history of ingesting shellfish or proximity to red tide
  • If ingested
    • Similar to ciguatera
    • GI symptoms - vomiting, diarrhea, abdominal cramping; usually within 30 minutes to 3 hours of ingestion
    • Neurologic symptoms - parethesias, dizziness, ataxia. Can also see hot/cold temperature sensation reversal
  • If inhaled
    • Upper respiratory tract irritation, rhinorrhea, bronchoconstriction

Differential Diagnosis

Marine toxins, envenomations, and bites

Treatment

  • Symptomatic

Prognosis

See Also

Source