Difference between revisions of "Paralytic shellfish poisoning"

(Background)
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</ref>
 
</ref>
  
==Diagnosis==
+
==Clinical Features==
*Based on symptoms plus history of shellfish ingestion
 
 
*Symptoms develop within minutes to hours of ingestion
 
*Symptoms develop within minutes to hours of ingestion
*Typically neurologic symptoms only: Paresthesias, dizziness, ataxia. May progress to dysphagia and/or respiratory failure. <ref> Etheridge SM. Paralytic shellfish poisoning: seafood safety and human health perspectives. Toxicon 2010;56:108 </ref>
+
*Typically neurologic symptoms only: [[Paresthesias]], [[dizziness]], [[ataxia]]. May progress to dysphagia and/or respiratory failure. <ref> Etheridge SM. Paralytic shellfish poisoning: seafood safety and human health perspectives. Toxicon 2010;56:108 </ref>
  
 
*Report any suspect cases to local department of health
 
*Report any suspect cases to local department of health
 
==Differential Diagnosis==
 
==Differential Diagnosis==
 
{{Marine envenomation DDX}}
 
{{Marine envenomation DDX}}
 +
 +
==Diagnosis==
 +
*Based on symptoms plus history of shellfish ingestion
  
 
==Treatment==
 
==Treatment==
*Supportive. Some cases may require intubation / mechanical ventilation
+
*Supportive. Some cases may require [[intubation]] / [[mechanical ventilation]]
  
 
==Prognosis==
 
==Prognosis==
 
*Mortality up to 12 percent if untreated <ref name = Mines >Mines D et al. Poisonings: food, fish, shellfish. Emerg Med Clin North Am 1997;15:157. </ref>
 
*Mortality up to 12 percent if untreated <ref name = Mines >Mines D et al. Poisonings: food, fish, shellfish. Emerg Med Clin North Am 1997;15:157. </ref>
 
*Symptoms usually self resolved within hours to days
 
*Symptoms usually self resolved within hours to days
 +
 
==See Also==
 
==See Also==
 
*[[Marine toxins and envenomations]]
 
*[[Marine toxins and envenomations]]

Revision as of 20:17, 7 January 2016

Background

  • Associated with red tides, but can occur independently
  • Caused by ingestion of contaminated shellfish which harbor toxin (heat stabile) producing algae
  • Shellfish typically from colder waters (New England, Pacific NW, Alaska)[1]

Clinical Features

  • Symptoms develop within minutes to hours of ingestion
  • Typically neurologic symptoms only: Paresthesias, dizziness, ataxia. May progress to dysphagia and/or respiratory failure. [2]
  • Report any suspect cases to local department of health

Differential Diagnosis

Marine toxins, envenomations, and bites

Diagnosis

  • Based on symptoms plus history of shellfish ingestion

Treatment

Prognosis

  • Mortality up to 12 percent if untreated [3]
  • Symptoms usually self resolved within hours to days

See Also

Source

  1. Centers for Disease Control and Prevention (CDC). Paralytic shellfish poisoning --- southeast Alaska, May-June 2011. MMWR Morb Mortal Wkly Rep 2011; 60:1554.
  2. Etheridge SM. Paralytic shellfish poisoning: seafood safety and human health perspectives. Toxicon 2010;56:108
  3. Mines D et al. Poisonings: food, fish, shellfish. Emerg Med Clin North Am 1997;15:157.