Difference between revisions of "Octopus bite"

(Mechanism)
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==Mechanism==
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==Background==
*Venom contains tetrodotoxin  
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*Blue-ringed octopus (genus ''Hapalochlaena'') is commonly cited venomous octopus
*Inhibits voltage-gated Na<sup>+</sup> channels causing paralysis
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**Venom contains tetrodotoxin (Inhibits voltage-gated Na<sup>+</sup> channels causing paralysis) and is potentially lethal
 +
**Becomes bright yellow with blue rings when provoked
  
==Symptoms==
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[[File:blue_ringed_octopus.jpg|thumb|Blue ringed octopus]]
*Erythema
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 +
==Clinical Features==
 +
*Local erythema
 
*Paresthesias
 
*Paresthesias
 
*Flaccid paralysis
 
*Flaccid paralysis
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==Differential Diagnosis==
 
==Differential Diagnosis==
[[File:blue_ringed_octopus.jpg|thumb|Blue ringed octopus]]
 
 
{{Marine envenomation DDX}}
 
{{Marine envenomation DDX}}
  
==Treatment==
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==Diagnosis==
*Supportive
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*Clinical diagnosis
*No antivenom
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 +
==Management==
 +
*Supportive treatment only (no antivenom exists)
 +
 
 +
==Disposition==
 +
 
  
 
==See Also==
 
==See Also==
 
*[[Marine toxins and envenomations]]
 
*[[Marine toxins and envenomations]]
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 +
==External Links==
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 +
 +
==References==
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<references/>
  
 
[[Category:Tox]][[Category:Environ]]
 
[[Category:Tox]][[Category:Environ]]

Revision as of 04:54, 5 March 2016

Background

  • Blue-ringed octopus (genus Hapalochlaena) is commonly cited venomous octopus
    • Venom contains tetrodotoxin (Inhibits voltage-gated Na+ channels causing paralysis) and is potentially lethal
    • Becomes bright yellow with blue rings when provoked
Blue ringed octopus

Clinical Features

  • Local erythema
  • Paresthesias
  • Flaccid paralysis
  • Respiratory Failure

Differential Diagnosis

Marine toxins and envenomations

Diagnosis

  • Clinical diagnosis

Management

  • Supportive treatment only (no antivenom exists)

Disposition

See Also

External Links

References