Difference between revisions of "Impetigo"

(Background)
Line 2: Line 2:
 
*Superficial epidermal infection characterized by amber crusts (nonbullous) or vesicles (bullous)
 
*Superficial epidermal infection characterized by amber crusts (nonbullous) or vesicles (bullous)
 
*May be super-infection or primary infection
 
*May be super-infection or primary infection
**Typical causative organisms are ''Staphylococcus. aureus or Streptococcus pyogenes''
+
**Typical causative organisms are ''[[Staphylococcus. aureu]]s or [[Streptococcus pyogenes]]''
 
*Fever and systemic signs are uncommon
 
*Fever and systemic signs are uncommon
 
*Postinfectious Glomerulonephritis is a possible complication
 
*Postinfectious Glomerulonephritis is a possible complication
  
 
==Diagnosis==
 
==Diagnosis==
 +
[[File:ImpetigoF.jpg|thumb|Impetigo honey-colored scab]]
 
*Nonbullous  
 
*Nonbullous  
 
**Erythematous macules/papules develop into vesicles which become pustular and rupture
 
**Erythematous macules/papules develop into vesicles which become pustular and rupture
Line 13: Line 14:
 
**Bullae form as result of staph toxin
 
**Bullae form as result of staph toxin
 
**Some cases caused by MRSA
 
**Some cases caused by MRSA
[[File:ImpetigoF.jpg|center|frame|500px|Impetigo honey-colored scab]]
 
  
 
==Treatment==
 
==Treatment==
*Topical abx
+
*Topical antibiotics
 
**Mupirocin ointment 2% TID x 7-14d
 
**Mupirocin ointment 2% TID x 7-14d
*Oral abx
+
*Oral antibiotics
**Consider for large areas or if topical tx is impractical or for [[bullous impetigo]]
+
**Consider for large areas or if topical treatment is impractical or for [[bullous impetigo]]
 
**[[Clindamycin]] 24mg/kg/d in 3 doses x7-10d
 
**[[Clindamycin]] 24mg/kg/d in 3 doses x7-10d
  

Revision as of 00:54, 24 February 2015

Background

  • Superficial epidermal infection characterized by amber crusts (nonbullous) or vesicles (bullous)
  • May be super-infection or primary infection
  • Fever and systemic signs are uncommon
  • Postinfectious Glomerulonephritis is a possible complication

Diagnosis

Impetigo honey-colored scab
  • Nonbullous
    • Erythematous macules/papules develop into vesicles which become pustular and rupture
      • As rupture release yellow fluid which dries to form stratified golden crust
  • Bullous
    • Bullae form as result of staph toxin
    • Some cases caused by MRSA

Treatment

  • Topical antibiotics
    • Mupirocin ointment 2% TID x 7-14d
  • Oral antibiotics

Source

Tintinalli