Personal Experience

Objective. To study the possibility of transferring multidrug resistant microorganisms through healthcare workers’ cell phones between medical institutions in Khabarovsk. Materials and Methods. It was a comparative prospective study to assess contamination of cell phones with multidrug-resistant microorganisms in a population (n = 30) and among intensive care unit (ICU) physicians (n = 60) in medical institutions. Antimicrobial susceptibility testing was performed by disc-diffusion method. A total of 514 healthcare workers from medical institutions of Khabarovsk were interviewed.

Objective. To investigate the mortality rate, comorbidity prevalence, and etiology of community-acquired pneumonia (CAP) in elderly patient population. Materials and Methods. Hospitalized elderly patients with CAP were distributed into the following age groups: 65–74 years (group I), 75–84 years (group II) and 85–94 years (group III). The patients’ medical records were used for determining comorbidities and mortality rate. In order to determine etiology of CAP, sputum or BAL samples were collected.

Objective. To characterize periprosthetic joint infection in patients undergoing a total hip and knee joint replacement. Materials and Methods. A total of 77 patients with periprosthetic infection following hip and knee joint replacement hospitalized in Grodno City Clinical Hospital were studied over the period of 2014-2018. Wound discharge, tissue samples, and fistula’s wall swab were used for microbiological tests. The analysis of surgical treatment of patients with deep periprosthetic knee and hip joint infection has been performed.

Objective. To assess efficiency of the “MIC-MICRO” kit developed in the Department of New Technologies of the Saint-Petersburg Pasteur Institute, on reference strains and clinical bacterial isolates. Materials and Methods. In order to assess the “MIC-MICRO” kit, several options of its execution were used, including different groups of antibiotics: aztreonam, amikacin, gentamicin, colistin, meropenem, nitrofurantoin, chloramphenicol, cefotaxime, ceftriaxone, ciprofloxacin, erythromycin. In order to determine the range of antibiotic values, the EUCAST-2020 database was used.

Objective. Assessment of bacterial identification effectiveness in clinical microbiology laboratory using the MALDI-MS based system BactoSCREEN. Materials and Methods. Bacteriological testing was done by the cultivation on Сolumbia agar with 5% of sheep blood (at 37°C for 24 hours). Colonies for identification were selected based on their growth pattern, type of hemolysis, morphology and consistency. The species identification was done by the MALDI-MS using the microbiology analyzer BactoSCREEN. Apart from MALDI-MS, we used morphology and biochemical methods for species identification when necessary.

Objective. To identify bacterial interactions at the site of infection in cystic fibrosis patients and to assess their possible effects on the course of infection. Materials and Methods. The following strains were used in this study: Alcaligenes faecalis LGBP strain, isolated from the environment; clinical isolates of Pseudomonas aeruginosa; Achromobacter xylosoxidans, Acinetobacter baumannii, Alcaligenes faecalis, and Bacillus subtilis strains; the standard laboratory P. aeruginosa PAO1 strain and its lysogens by temperate bacteriophages of various species, and its phageresistant mutants.

Objective. To investigate a nasopharyngeal carriage and serotypes of S. pneumoniae in children aged 3 to 6 years from day-care centers in Smolensk. Materials and Methods. A total of 245 isolates of S. pneumoniae from 1027 nasopharyngeal swabs from healthy children attending day-care centers was tested. Identification of S. pneumoniae was performed according morphological, cultural and antigenic characteristics (Slidex pneumo-Kit, bioMeriеux, France), susceptibility to optohin and bile. Extraction of S.

Objective. To determine the efficacy and safety of direct-acting antiviral agents (DAA) in patients with chronic HCV infection and UGT1A1*28 polymorphism. Materials and Methods. An open-label, non-randomized, observational study to assess efficacy and safety of DAA in patients (n = 143) with chronic hepatitis C (CHC) and liver cirrhosis and UGT1A1*28 polymorphism was performed. A total of 139 patients with chronic HCV infection were included in the efficacy analysis (absence of HCV RNA in blood by PCR) by the rate of sustained virologic response at week 12 (SVR12).

Objective. To evaluate effect of «Haemoblock»TM preparation on in vitro bacterial colonization. Materials and Methods. Activity of «Haemoblock»ТМ product on the growth and colonization of S. aureus АТСС 25923, S. epidermidis ATCC 28922, E. coli АТСС 25922, P. aeruginosa АТСС 27853 cells in the suspension and on the surface of monofilament macroporous polyester mesh was evaluated. Results. This product at concentration of 0.062% and above inhibited bacterial growth and reduced biofilm mass and bacterial cell viability.

Objective. The purpose of this study was to study the frequency of achievement of target values of vancomycin residual concentration (RC) and to identify the factors influencing this indicator. Materials and Methods. A retrospective observational study of vancomycin RC was performed in 471 patients who received vancomycin infusions in the department of purulent surgery of the RSRI of TO named after R.R. Vreden about capillary instillation after major orthopedic operations over the period from 01.