Gas gangrene
(Clostridium perfringens, novyi, septicum, histolyticum)
Material: | Muscle tissue (from the margins to necrosis), swabs and puncture specimen from suspicious lesions, especially deeper regions, pus, exudate (pathogen demonstration) Quickest possible transport in transport medium (anaerobic conditions). Please call at once in case of clinical suspicion of gas gangrene!
Pathogen demonstration: Muscle tissue (from the margins to necrosis), swabs and puncture specimen from suspicious lesions, especially deeper regions, pus, exudate (pathogen demonstration) Quickest possible transport in transport medium (anaerobic conditions). Please call at once in case of clinical suspicion of gas gangrene! |
Methods: |
Kulturelle Untersuchungen → anaerobe Atmosphäre Mikroskopie → Hellfeldmikroskopie |
Indication | Clinical suspicion of gas gangrene: Deep, dirty wounds with sudden onset of severe pains, gas development (crepitus); less common: abdominal infections (bowel gangrene) with identical rapid progress and gas development, i.e. after bowel perforations (endogenous infection), as clostridia are normal intestinal bacteria. |
Please note | Due to the rapid course of the illness, clinical diagnosis is key. To support diagnosis please phone the laboratory prior to sending the sample material. Initially, a microscopy for the detection of thick, gram-positive rods will be carried out as quickly as possible. Incubation time: 4 – 72 hours In case of gas gangrene earliest possible extensive cleaning of wound / opening of the wound area and supply of oxygen! Antibiosis with high dosed penicillin G in combination with metronidazole, and tetracycline or clindamycin. Hyperbaric oxygen therapy. In case of unclear findings, i.e. difficult differentiation with cellulitis, necrotizing fasciitis or gas phlegmon (see below), a combination of ciprofloxacin plus clindamycin plus penicillin G can be tried. Interpretation of the detection of clostridium perfringens should always be in connection with the clinical presentation. The actual gas gangrene is rare but lethality high.
Differential diagnosis:
Enteritis by clostridium perfringens: Enterotoxin-producing strains of clostridium perfringens are the second-common cause, following staphylococcus aureus, of food poisoning. In this case, symptomatic therapy is usually sufficient, a special antibiotic therapy is not required. |
Accredited | ja |
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