Difference between revisions of "Trench foot"

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==References==
 
==References==
 
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[[Category:Environ]]
 
[[Category:Environ]]

Revision as of 15:00, 25 August 2015

Background

  • Considered a nonfreezing cold injury
    • occurs when ambient temperature above freezing
  • Develops slowly over hours-days when foot is exposed to cold/wet conditions
  • Reversible injury may progress to irreversible injury
  • rarely seen in civilians; significant problem in military operations [1]

Clinical Features

  • Tingling/numbness is initial symptom
  • Foot appears pale, mottled, anesthetic, pulseless, and immobile
    • Initially does not change after rewarming
  • Hyperemic phase begins w/in hr after rewarming
    • Assoc w/ severe burning pain and reappearance of proximal sensation
  • As perfusion returns to foot over 2-3d edema and possibly bullae may form
  • Anesthesia persists for weeks and may be permanent; gangrene may occur

Differential Diagnosis

Foot diagnoses

Acute

Subacute/Chronic

Cold injuries

Diagnosis

  • Usually clinical

Treatment

  • Keep feet clean, warm, dryly bandaged, elevated
  • Monitor for signs of infection

See Also

References

  1. Ikaheimo T. Frostbite and Other Localized Cold Injuries. In: Tintinalli's Emergency Medicine: A comprehensive study guide. 7th ed. McGraw Hill Medical; 2011: 1331