Fasciitis necrotizing M72.6

Author: Prof. Dr. med. Peter Altmeyer

Co-Autor: Dr. med. Jeton Luzha

All authors of this article

Last updated on: 29.10.2020

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Synonym(s)

Erysipelas gangraenosum; necrotic fasciitis; necrotizing fasciitis; Necrotizing fasciitis; Streptococcus gangrene

History
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Wilson, 1952

Definition
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Rare, life-threatening, fulminant, deep, phlegmonous infection of the skin, subcutis and fascia, possibly also of the musculature, often occurring after banal injuries, no bone involvement (Goh T et al.2014).

Pathogen
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On the basis of the detected excitation spectrum 4 types can be distinguished:

  • Type 1: Polymicrobial mixed infection. Mixed infection mostly combinations of different anaerobic bacteria (e.g. Bacteroides, Peptostreptococcus spp.) and facultatively anaerobic bacteria (e.g. Non-A-Streptococcus) and Enterococci (e.g. E. coli, Enterobacter, Klebsiella, Proteus).
  • Type 2: Group A streptococci (Streptococcus pyogenes) with or without concomitant infection by Staphylococcus aureus or epidermidis.
  • There are also isolated reports of infections with multi-resistant germs such as Acinobacter baumannii, an opportunistic Gram-negative, coccoid rod bacterium.
  • Type 3 (rare): Vibrio spp.
  • Type 4 (rare): Candida spp.

Occurrence/Epidemiology
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Low incidence; figures of 0.4/100,000 inhabitants are given for Europe. m:w=2-3:1;

Etiopathogenesis
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Mostly after banal injuries, but also after surgical wounds or injuries with infected hypodermic needles of drug addicts. Bacterial toxins or the deposition of bacterial and cellular decay products in the event of inadequate removal are held responsible for the necrotizing course of the disease.

Localization
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Extremities, especially lower legs, also forearms starting from the back of the hand. Furthermore lower abdomen, genital area ( Gangraena acuta genitalium).

Clinical features
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Start with high septic temperatures (80%), severe disturbance of the general findings and severe local pain (79%). Pain in the early stages often appears disproportionately severe in view of the low or absence of visible skin lesions.

The skin initially shows a circumscribed, overheated redness (80%) with swelling and subsequently a subcutaneous nodular, almost board-like, painful induration.

Rapid transition to haemorrhagic infarction of the subcutis, secondarily also of the fascia and the musculature (compartment syndrome); in surgical intervention, a muscle melting under the hands is found. In this stage the skin appears bluish-livid, large blistered and lifted.

Note: Diabetes mellitus (detected in about 45% of cases), glucocorticoid therapy, alcoholism, intravenous drug abuse, liver cirrhosis and tumor diseases are considered risk factors (Goh T et al. 2014).

Note: A special form of necrotizing fasciitis affecting the scrotum or vulva is Fournier's gangrene.

Laboratory
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Inflammation parameters (CRP, BSG) massively increased, leucocytosis, neutrophilia; CK, amylase increased.

Draw blood cultures!

Diagnosis
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Clinic, laboratory, sonography of the affected muscle boxes, MRI.

Complication(s)
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Involvement of joints and vascular nerve cords, consumption coagulopathy.

Therapy
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Combination of radical surgical debridement with removal of fascia and infected soft tissue. Immediate broad surgical opening, extended debridement of the necrotic area to the point where skin and subcutaneous tissue cannot be separated from the fascia. Removal of necrotizing parts, cleaning of the wound bed, open wound treatment. Another revision ("second look") should be performed 24-36 hours for possible resection and wound irrigation. In addition, high-dose antibiotic therapy with broad-spectrum antibiotics such as piperacillin and tazobactam or with reserve antibiotics such as carbapenem should be administered. Antibiotic therapy alone is usually not sufficient!

Internal therapy
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  • High-dose parenteral antibiotic therapy as soon as possible after the antibiogram. Take multiple wound swabs and prepare blood cultures! Information to the laboratory, 3 times 2 venous blood cultures per 24 hours are sufficient for pathogen detection.
  • The standard therapy consists of a combination of penicillin G and an aminoglycoside (gentamicin), since a synergistic effect of both substances is achieved even if pathogens are not very sensitive to aminoglycosides alone. Penicillin G 5 million IU at TD of 20-30 million IU, gentamicin (e.g. Refobacin) 3-5 mg/kg bw/day in 1 ED slow i.v. (short infusion). In case of detection of anaerobes additionally clindamycin (e.g. sobelin) 4 times/day 300-600 mg (up to 3 times/day 600 mg) i.v. In case of penicillin intolerance vancomycin 2 times/day 1 g or 4 times/day 500 mg i.v.v. (1 hour infusion) or teicoplanin (e.g. Targocid) 400 mg on day 1, followed by 200 mg i.v. once/day from day 2. The duration of therapy must be adapted to clinical conditions. Alternatively linezolid (Zyvoxide) 2 times/day 600 mg i.v.
  • The administration of glucocorticoids is assessed differently. While glucocorticoids are sometimes accused of playing a role in the pathogenesis of the disease pattern, other authors consider their inhibitory effect on the tumor necrosis factor and the resulting stabilization of the cell membrane to be a potentially life-saving factor.

Progression/forecast
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Lethal outcome in up to 30% of cases (sepsis).

Literature
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  1. Ballon-Landa GR (2001) Necrotizing fasciitis due to penicillin-resistant Streptococcus pneumoniae: case report and review of the literature. J Infect 42: 272-277
  2. Ben M'Rad M et al (2002) A case of necrotizing fasciitis due to Streptococcus pneumoniae following topical administration of nonsteroidal anti-inflammatory drugs. Clin Infect Dis 35: 775-776
  3. Dahl PR (2002) Fulminant group A streptococcal necrotizing fasciitis: clinical and pathologic findings in 7 patients. J Am Acad Dermatol 47: 489-492
  4. Fustes-Morales A Necrotizing fasciitis: report of 39 pediatric cases. Arch Dermatol 138: 893-899
  5. Frick S et al (2001) Necrotizing fasciitis due to Streptococcus pneumoniae after intramuscular injection of nonsteroidal anti-inflammatory drugs: report of 2 cases and review. Clin Infect Dis 33: 740-744
  6. Goh T et al (2014) Early diagnosis of necrotizing fasciitis. Br J Surgery 101:e119-125.
  7. Heitmann C (2001) Surgical concepts and results in necrotizing fasciitis. Surgeon 72: 168-173
  8. Lascj JA et al (1996) Deep soft tissue infection sive necrotizing fasciitis with septic shock. Z Hautkr 71: 141-143
  9. Kulasegaran S et al (2015) Necrotizing fasciitis: 11-year retrospective case review in South Auckland. ANZ JSurg
    doi: 10.1111/ans.13232
  10. Myslinski W (2003) Nonsteroidal anti-inflammatory drugs overdosage--the cause or the consequence of necrotizing fasciitis? J Eur Acad Dermatol Venereol 17: 227-228
  11. U et al. (1996) Fasciitis necroticans, Clinical course - diagnostics - therapy. Phlebology 25: 69-72
  12. Wagner JA et al (2011) Necrotizing fasciitis caused by Acinobacter baumannii. dermatologist 62: 128-130
  13. Wilson B (1952) Necrotizing fasciitis. On the surgeon's bench 18: 416-431
  14. Wong CH et al (2003) Necrotizing fasciitis: clinical presentation, microbiology, and determinants of mortality. J Bone Joint Surg Am 85: 1454-1460

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Authors

Last updated on: 29.10.2020