ISSN:
1437-7780
Keywords:
endogenous infection
;
burn
;
bacterial translocation
;
Pseudomonas aeruginosa
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The significance of intestinalPseudomonas aeruginosa as a pathogen of post-burn infection in mice was established. Mice with and withoutP. aeruginosa intestinal colonization were scorched with a deep dermal burn by ethanol flame on the shaven back, involving approximately 25% of the total body surface area. Eight hours later,P. aeruginosa of a serotype similar to that previously administered (per os) was detected in the burn site, liver, and spleen ofP. aeruginosa-treated, but not the control, animals. Within three post-burn days, 33.3% of theP. aeruginosa-treated, burned mice died of infection-derived sepsis, whereas none of the control mice died. In addition, when the orally nonabsorbable antibiotics, polymyxin B (12 mg/kg) and vancomycin (30 mg/kg), were administered by intragastric injection toP. aeruginosa-treated mice immediately after burn exposure, the mortality rate significantly decreased to 16.1±6.1% compared with 35.0±5.0% in similarly colonized, burned mice not given these oral antibiotics (P〈0.05). These findings suggest thatP. aeruginosa colonized in the intestinal tract is noxious and can be fatal as a pathogen of post-burn infection. Furthermore, our report suggests that selective digestive decontamination (decontamination of endogenous pathogens in the intestinal tract) is essential in preventing post-burn infection associated with bacterial translocation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02350648
Permalink