Fournier gangrene: Difference between revisions

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**Microthrombosis of small subcutaneous vessels leads to gangrene of overlying skin
**Microthrombosis of small subcutaneous vessels leads to gangrene of overlying skin
*Risk Factors
*Risk Factors
**Diabetes mellitus
**Diabetes mellitus (most common)
**Hypertension
**Hypertension
**Alcoholism
**Alcoholism
**Advanced age
**Advanced age
**Para/Quadriplegic  
**Para/Quadriplegic  
*Under diagnosed in women<ref>Wróblewska M et al. Fournier's gangrene: current concepts. Pol J Microbiol. 2014;63(3):267-73.</ref>
*Under diagnosed in women<ref name="Concepts">Wróblewska M et al. Fournier's gangrene: current concepts. Pol J Microbiol. 2014;63(3):267-73.</ref>
*Mortality
*Mortality
**Most often 20-40%, but ranges from 4% to 80%<ref>Wróblewska M et al. Fournier's gangrene: current concepts. Pol J Microbiol. 2014;63(3):267-73.</ref>
**Most often cited as 20-40%, but up to 80% in some studies<ref name="Concepts" />


==Clinical Features==
==Clinical Features==
*Benign infection or simple abscess that rapidly becomes virulent
*Marked pain, swelling, crepitus, ecchymosis to genital or perineal area.
*Marked pain, swelling, crepitus, ecchymosis


==Differential Diagnosis==
==Differential Diagnosis==
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==Diagnosis==
==Diagnosis==
'''Clinical diagnosis, based on history and physical exam'''
===Work-up===
*CBC
*CBC
*Electrolytes
*CMP
*CRP
*Lactate
*Type and Screen
*Wound Culture
*Blood Cultures
*Blood Cultures
*Type and Screen
*CT Abdomen/pelvis (only if diagnosis unclear or if requested by surgery/urology)
*Culture from wound/pus
*CT Abd/pel: typically to assess extent of disease process
*EKG (pre-op)
*Foley (pre-op)


==Treatment==
==Treatment==
*[[Antibiotics]]
*Immediate surgery and urology consult for surgical debridement
**Must cover [[gram positive]], [[gram negative]], and [[anaerobes]]
*[[Antibiotics]] - Must cover [[gram positive]], [[gram negative]], and [[anaerobes]]
***[[Vancomycin]] + ([[imipenem]] 1gm IV q24hr OR [[meropenem]] 500mg-1gm IV q8hr)   
**[[Vancomycin]] + ([[imipenem]] 1gm IV q24hr OR [[meropenem]] 500mg-1gm IV q8hr)   
*Surgical debridement


==Disposition==
==Disposition==
*Urologic consultation, in addition to surgery consultation, is required if:
*Admit to ICU
**Periurethral abscess is inciting event
**Infection has secondarily invaded the urinary tract and a suprapubic catheter is needed


==See Also==
==See Also==

Revision as of 07:40, 2 August 2015

Background

  • Polymicrobial necrotizing fasciitis of perineal, genital, or perianal anatomy
    • Microthrombosis of small subcutaneous vessels leads to gangrene of overlying skin
  • Risk Factors
    • Diabetes mellitus (most common)
    • Hypertension
    • Alcoholism
    • Advanced age
    • Para/Quadriplegic
  • Under diagnosed in women[1]
  • Mortality
    • Most often cited as 20-40%, but up to 80% in some studies[1]

Clinical Features

  • Marked pain, swelling, crepitus, ecchymosis to genital or perineal area.

Differential Diagnosis

Testicular Diagnoses

Diagnosis

Clinical diagnosis, based on history and physical exam

Work-up

  • CBC
  • CMP
  • Lactate
  • Type and Screen
  • Wound Culture
  • Blood Cultures
  • CT Abdomen/pelvis (only if diagnosis unclear or if requested by surgery/urology)

Treatment

Disposition

  • Admit to ICU

See Also

References

  1. 1.0 1.1 Wróblewska M et al. Fournier's gangrene: current concepts. Pol J Microbiol. 2014;63(3):267-73.