Gas Gangrene: Causes

Pathogenesis (disease development)

Clostridia are found worldwide. They occur primarily in soil. However, they also occur physiologically in the intestinal flora and genital flora of women.

Clostridia are toxin- and spore-forming bacteria that are obligate anaerobes (organisms that do not require free oxygen to live).

Factors favoring gas gangrene infection are:

  • Restricted blood supply to the affected body region (e.g., due to diabetes mellitus, vascular disease, etc.).
  • Malnutrition (endogenous infection)
  • Mixed infections with other anaerobes or enterobacteria.

Etiology (causes)

Behavioral causes

Drug use

  • Injections of contaminated drugs

Disease-related causes

Injuries, poisonings, and other consequences of external causes (S00-T98).

  • Intestinal injuries
  • Contamination of wounds

Further

  • Operations with non-sterile instruments