P. aeruginosa

Epidemiological significance of genome variations in Pseudomonas aeruginosa causing chronic lung infection in patients with cystic fibrosis

Objective. To present the data on the main mechanism of molecular variation in P. aeruginosa causing chronic lung infection in patients with cystic fibrosis. Materials and Methods. A total of 1800 throat swabs and sputum samples from cystic fibrosis patients were included in the study over the 10-year period. P. aeruginosa isolates were primarily identified by the biochemical method using the API 20NE test strips (bioMerieux, France). Antimicrobial susceptibility testing was performed by disc diffusion method.

Use of the MALDI Biotyper system and the microbiological diagnosis algorithm for identification of non-fermenting bacteria isolated from respiratory tract in cystic fibrosis patients

The objective of this study was to compare the MALDI Biotyper system and the microbiological diagnosis algorithm for identification of non-fermenting bacteria isolated from respiratory tract in cystic fibrosis patients. The identification and typing …

Use of the Anti-Pseudomonas Vaccine for Prophylaxis and Treatment of Nosocomial Infections in Patients with Severe Burn Trauma

Objective. To explore potential of anti-Pseudomonas vaccine for the prophylaxis and treatment of infections caused by Pseudomonas aeruginosa in patients with severe burn trauma. Materials and Methods. This was a pilot, singlecenter randomized, parallel group study which enrolled patients with burns involving 10 to 60% of the body surface area. A total of 24 patients have received a course of «Pseudovac» vaccine (vaccination group), and 24 patients were included in the control arm (non-vaccination group).

Antimicrobial Resistance of Gram-negative Microorganisms Causing Complicated Intra-abdominal Infections in Russia

Objective. To assess antimicrobial resistance of gram-negative microorganisms causing complicated intra-abdominal infections (IAI) in Russia. Materials and Methods. This was a multicenter (a total of 21 cities), prospective, microbiological study to collect Gram-negative pathogens from patients with complicated IAI. Identification was performed using MALDITOF mass spectrometry. Minimal inhibitory concentrations (MICs) of antibiotics were determined by dilution method according to the current CLSI and EUCAST guidelines. Results. A total of 1908 isolates of gram-negative pathogens was obtained (357 isolates in community-acquired IAI, and 1551 isolates in nosocomial IAI).

Prevalence and Molecular Epidemiology of Gram-negative Bacteria Producing Metallo-β-lactamases (MBLs) in Russia, Belarus and Kazakhstan

The prevalence and molecular epidemiology of MBLproducing Gram-negative bacteria have been studied in Russia (1998–2010), Belarus and Kazakhstan (2005– 2010). Analysis of nosocomial strains isolated as part of several multicentre surveillance studies …

Hospital-Acquired Pneumonia in Patients with Hematological Malignancies in an ICU

Objective. To determine causative agents of hospitalacquired pneumonia (HAP), their incidence rates, and susceptibility to antimicrobial agents in patients with hematological malignancies in an intensive care unit (ICU). Materials and Methods. Broncho-alveolar lavage (BAL) specimens obtained from oncohaematologic patients with pneumonia hospitalized to the ICU between December 2009 and December 2010 were retrospectively studied. Results. A total of 142 BAL specimens were obtained from 72 hospitalized patients aged of 19 to 86 years.

Carbapenem-Resistant Pseudomonas aeruginosa Isolated in Perm City Hospitals

Analysis of susceptibility to carbapenems of P. aeruginosa (n=178) isolated in different Perm city hospitals showed that the majority of carbapenem-resistant strains were obtained from intensive care units (ICU) patients in surgical hospitals. The …

Etiology of Diabetic Foot Infections and In Vitro Activity of Antimicrobial Agents

This article presents the results of the study to determine etiology and antimicrobial susceptibility in diabetic foot infections (DFI). A total of 288 isolates were obtained from patients with confirmed DFI by fine-needle aspiration/biopsy during …

Comparative Activity of Cefepime and Other Antimicrobials Against Nosocomial Gram-Negative Pathogens in Russia

The present in vitro study of antimicrobial susceptibility of nosocomial Gram,negative pathogens to cefepime and other antimicrobials has been performed by the ROSNET study group in 28 medical institutions in Russia. The most active agent against …