antimicrobial resistance | CMAC

antimicrobial resistance

War and Peace: the difficult treatment of urinary tract infections and fosfomycin trometamol

The title of this review “War and peace” is not accidental and the analogies with a well-known literary masterpiece have absolutely justified ground. As in the case of Lev Tolstoy’s novel this title has a profound philosophical meaning, although at …

COVID19 pandemic is a «pandemic» of antimicrobial therapy

The article presents a critical analysis of antibiotic usage tactics in the treatment of patients with COVID-19 existing in Russian and foreign healthcare, and discusses the possible causes of unjustified antibiotic aggression in this category of …

Impact of healthcare workers’ cell phones on the spread of multidrugresistant microorganisms

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.

Molecular epidemiology of mcr gene group

Colistin and polymyxin B are the “last reserve” antimicrobials for the treatment of extensively drug-resistant Gram-negative bacterial infections. The rapidly increasing prevalence of polymyxin resistance mediated by the mcr gene localized on plasmid …

Management of antimicrobial resistance in a hospital: current state and future prospects

The analysis of the current state of antimicrobial resistance was performed and used as the basis for the implementation of modern tools of antimicrobial stewardship program in hospital practice. As a result, the structure of nosocomial pathogens and …

Antimicrobial resistance of staphylococci in pediatric hospitals

Objective. To determine frequency of Staphylococcus isolation and antimicrobial resistance in hospitalized children with different types of infections. Materials and Methods. Species identification and antimicrobial susceptibility testing in staphylococci were performed on a WalkAway 96 analyzer using Pos Combo type 20 tablets, and mecA gene detection was performed on a RotorGene 6000 amplifier with a set of AmpliSens MRSA-screen FL. Results. A total of 876 strains of staphylococci isolated in children’s hospitals were tested.

Appraisal of the domestic kit «MICMICRO » for antimicrobial susceptibility testing by serial microdilution method

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.

Antimicrobial resistance of gram-negative pathogens isolated from hospitalized patients in Rostov region

Objective. To evaluate resistance rates to carbapenems and III–IV generation cephalosporins among gramnegative bacteria, including production of carbapenemases and extended-spectrum beta-lactamases (ESBL). Materials and Methods. A total of 460 gram-negative bacteria isolated from hospitalized patients aged 1 to 85 years from 8 medical institutions of Rostov-on-Don and the region from April 2018 to December 2019 were tested by conventional microbiological methods. The most common acquired carbapenemases genes were determined by real-time PCR using commercial kits (Central Research Institute of Epidemiology, Russia).

Data handling as a basis for local antimicrobial resistance surveillance

Continuing trends of antimicrobial resistance growth require a set of countermeasures, of which antimicrobial resistance surveillance at the global, national, and local levels plays one of the most important roles. Local surveillance systems are the …

Potentiation of antimicrobial activity of colistin with antibiotics of different groups against multidrug- and extensively drug-resistant strains of Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa

Objective. To reveal antibiotics being capable of potentiating the antimicrobial activity of colistin against multidrug- and extensively drug-resistant strains of Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa. Materials and Methods. The minimum inhibitory concentrations (MIC) of colistin alone and in combination with fixed concentrations of antibiotics of different groups were determined for 272 multidrug- and extensively drug-resistant strains of K. pneumoniae, A. baumannii and P. aeruginosa. Bactericidal activity of colistin, carbapenems, clarithromycin and their combinations were also determined at fixed PK/PD breakpoint concentrations of antibiotics.