Microbiological characteristic of clinical strains of Proteus bacteria, discharged in patients with chronic osteomyelitis

Biological features and incidence of Proteus bacteria discharge in patients with chronic osteomyelitis were analyzed. 1255 strains of Proteus spp. were discharged in patients, being treated in RISC "RTO" purulent department within the period of 1982-2001. According to pathology material, there were mainly "non-swarming" O-forms of Protei discharged from osteomyelitic focus in early 1980-s, that came to 92% out of general number of the bacterial strains discharged. There was a spasmodic increase of the part of more virulent "swarming" H-forms since 1987, and by present 92-96,5% of isolates are characterized by "swarming" phenomenon. There was microcenosis structure alternation shown by change of predominating type in the microflora gram-negative component of the osteomyelitic focus. It was established that within the period mentioned Proteus discharge rate in patients 29,7% decreased, Proteus leading position among gram-negative microorganisms of the osteomyelitic focus turned to Pseudomonas aeruginosa prevalence. There was no reduction of Proteus incidence noted in patients before treatment start within the period mentioned. Decrease of Proteu discharge rate was evidently caused by treatment measures of patients' postoperative managing.