Difference between revisions of "Varicella"

(Differential Diagnosis)
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==Background==
 
==Background==
*Also known as "Chicken Pox"
+
*Caused by [[varicella zoster virus]] causing varicella (chicken pox) and later zoster (shingles)
 
*Contagious until last lesion crusts over
 
*Contagious until last lesion crusts over
  

Revision as of 02:09, 3 January 2015

Background

  • Caused by varicella zoster virus causing varicella (chicken pox) and later zoster (shingles)
  • Contagious until last lesion crusts over

Diagnosis

Male with varicella rash: lesions in various stages of development
Classic blister during early stage of lesion development
  • Pruritic generalized vesicular exanthem w/ mild systemic manifestations
  • Usually affects children <10y
  • Rash
    • Starts on trunk or scalp as pruritic, red macules, spreads to extremities
    • W/in 24hr rash becomes vesicular (on erythematous base)
    • Palms/soles spared
    • Lesions in various stages of development

Differential Diagnosis

Pediatric

Pediatric Rash

Treatment

  • Tylenol, antihistamine, oatmeal baths
  • No Aspirin (may predispose to Reye syndrome)
  • Routine use of antiretrovirals for uncomplicated cases in immunocompetent children is not recommended (Tintinallli 7th ed)
  • Immunocompromised: IV acyclovir or high-dose PO tx (600mg/m2/day)

Complications

  • Can include encephalitis, pneumonia, hepatitis, strep/staph superinfection of ruptured vesicles
  • Perinatal infection in neonates may develop serious illness

See Also

Pediatric Rashes