Difference between revisions of "Ciguatera"

(Created page with "==Background== *Most cases tropics and subtropics, between 35 degrees north and south latitudes *Most common fish are barracuda, moray eel, amberjack, and certain types of groupe...")
 
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*Most cases tropics and subtropics, between 35 degrees north and south latitudes
 
*Most cases tropics and subtropics, between 35 degrees north and south latitudes
 
*Most common fish are barracuda, moray eel, amberjack, and certain types of grouper, mackerel, parrotfish, and red snapper
 
*Most common fish are barracuda, moray eel, amberjack, and certain types of grouper, mackerel, parrotfish, and red snapper
 +
*Caused by fish eating dinoflagellates that grow on and around coral reefs and contain a heat-stable toxin
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 +
==Diagnosis==
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*GI symptoms
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**vomiting, diarrhea, and abdominal cramping
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**3-30hrs after eating contaminated fish
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*Neurologic symptoms
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**Paresthesias, painful teeth, painful urination, blurred vision, nerve palsies, and hot/cold temperature reversal
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*Cardiovascular symptoms
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**Bradycardia, heart block, and hypotension.
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 +
^Diagnosis based on history and physical only
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 +
==Treatment==
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*Symptomatic
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*Prevent recurrances
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**Do not injest alcohol, caffeine, nuts or fish for 6 months
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 +
==Prognosis==
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*Neurologic symptoms typically persist from a few days to several weeks
 +
*~20% of patients have symptoms that persist for months
 +
*<2% have symptoms that last for years

Revision as of 12:14, 20 December 2012

Background

  • Most cases tropics and subtropics, between 35 degrees north and south latitudes
  • Most common fish are barracuda, moray eel, amberjack, and certain types of grouper, mackerel, parrotfish, and red snapper
  • Caused by fish eating dinoflagellates that grow on and around coral reefs and contain a heat-stable toxin

Diagnosis

  • GI symptoms
    • vomiting, diarrhea, and abdominal cramping
    • 3-30hrs after eating contaminated fish
  • Neurologic symptoms
    • Paresthesias, painful teeth, painful urination, blurred vision, nerve palsies, and hot/cold temperature reversal
  • Cardiovascular symptoms
    • Bradycardia, heart block, and hypotension.

^Diagnosis based on history and physical only

Treatment

  • Symptomatic
  • Prevent recurrances
    • Do not injest alcohol, caffeine, nuts or fish for 6 months

Prognosis

  • Neurologic symptoms typically persist from a few days to several weeks
  • ~20% of patients have symptoms that persist for months
  • <2% have symptoms that last for years