Ivan Trushin

Institute of Antimicrobial Chemotherapy, Russia, Smolensk

Objective. To study the prevalence and mechanisms of antibiotic resistance, including carbapenemase production, in clinical isolates of Klebsiella pneumoniae and Escherichia coli isolated in different regions of Russia as part of the sentinel multicenter surveillance study in 2020–2021, and to explore the population structure of K. pneumoniae and t...

Objective. To study the antimicrobial susceptibility profile of Moraxella catarrhalis isolates from different regions of Russia in 2010–2021. Materials and Methods. The study included 352 isolates of M. catarrhalis isolated in 11 cities of Russia (Volgograd, Irkutsk, Kazan, Kirov, Moscow, Murmansk, Perm, Seversk, Togliatti, Tomsk, and Ulan-Ude) in...

Objective. To analyse aggregated AST results for key microorganisms collected through the 2022 reports of chief specialists in clinical microbiology and antimicrobial resistance. Materials and Methods. The study included an analysis of the interpretation criteria used in the laboratories and an evaluation of the AST reports. Data were obtained...

Objective. To identify risk factors for fatal outcome and COVID-19-associated liver damage in hospitalized adult patients with coronavirus infection. Materials and Methods. In a retrospective cohort study, 389 cases of patients with coronavirus infection complicated by bilateral viral pneumonia were studied. Demographic characteristics, clinical fe...

Objective. To determine in vitro activity of oral III generation cephalosporin cefpodoxime against clinical isolates of Haemophilus influenzae, Streptococcus pneumoniae and Streptococcus pyogenes isolated from patients with community-acquired respiratory tract infections in different regions of the Russian Federation. Materials and Methods. The stu...

Objective. To analyze the features of local antibiotic resistance monitoring at hospitals in the Russian Federation. Materials and Methods. The study involved a survey of 305 institutions. The duration of data collection was 1 year (March 2020 – April 2021). The responses received were analyzed using the «R» programming language. Special packages w...

Objective. To determine spectrum and prevalence of genetic determinants of resistance to macrolides in Mycoplasma genitalium in a Russian patient population. Materials and Methods. A total of 873 M. genitalium-positive samples from five geographical regions of Russia were investigated over the period of 2009–2019 using the previously developed prot...

Objective. To evaluate in vitro activity of biapenem and other clinically available carbapenems against Russian clinical isolates of Enterobacterales, Pseudomonas aeruginosa и Acinetobacter spp., including isolates with acquired fermentative mechanisms of resistance to β-lactams. Materials and Methods. A total of 3139 Enterobacterales isolates,...

Objective. To assess the in vitro activity of ceftazidime-avibactam against clinical Enterobacterales and Pseudomonas aeruginosa isolates in various regions of Russia based on results of local susceptibility testing by disk diffusion method. Materials and Methods. Overall, 160 laboratories located in 61 Russian cities participated in this surve...

Objective. To estimate prevalence and antimicrobial susceptibility of circulated S. pneumoniae serotypes in adult population in different regions of the Russian Federation. Materials and Methods. A total of 500 isolates of S. pneumoniae obtained from patients with invasive pneumococcal disease (IPD), community-acquired pneumonia (CAP), sinusiti...

Objective. To review the basic principles and functionality of the AMRmap online resource. Materials and Methods. The AMRmap platform was developed using the R programming language and various downloadable modules – packages. The current annually updated version of EUCAST clinical breakpoints was applied for determination of categories of susce...

Objective. To determine in vitro activity of thiamphenicol and other clinically available antimicrobials against clinical isolates of Haemophilus influenzae, Streptococcus pneumoniae and Streptococcus pyogenes. Materials and Methods. We included in the study 875 clinical isolates from 20 Russian cities during 2018–2019. Among tested strains, 12...

Surveillance of antimicrobial resistance (AMR) is crucial for identifying trends in resistance and developing strategies for prevention and treatment of infections. Globally, AMR surveillance systems differ in terms of organizational principles, comprehensiveness, accessibility, and usability of data presentation. Until recently, the data on AMR in...

Objective. To assess efficacy and safety of 14-day triple nifuratel-based therapy compared to 14-day standard triple therapy in adult patients with symptomatic H. pylori infection. Materials and Methods. A total of 70 patients with dyspepsia and microbiologically confirmed H. pylori infection were enrolled into the open-label, randomized, compa...

Objective. To evaluate antimicrobial resistance patterns of clinical Streptococcus pneumoniae isolates from different regions of Russia during 2014–2017. Materials and Methods. We included in the study 519 clinical S. pneumoniae isolates from 18 Russian cities. Susceptibility testing was performed by reference broth microdilution method (ISO 20...

Objective. In this study, we examined the prevalence of macrolide-resistant M. genitalium in two Russian cities, Smolensk and Tula, between 2013 and 2017. Materials and Methods. DNA’s samples were isolated from urethral and cervicovaginal swabs using primary screening and tested for macrolide resistance-associated mutations by real-time PCR. Th...

Antimicrobial resistance is a growing threat to global public health and requires closer attention from the medical community. Antibiotic resistance monitoring systems play a key role in observing the antimicrobial susceptibility changes for rational prescribing antimicrobial therapy. Most current systems use data on a global scale; however, local...

Objective. To study management of patients with peptic ulcer based on outpatient card data and to evaluate changes in methods for diagnosis of H. pylori and treatment prescriptions compared with 2004– 2005. Materials and Methods. A total of 100 outpatient cards of patients aged 18 years and older who came to outpatient clinic visit for peptic u...

Background: Single nucleotide polymorphisms (SNPs) are the most abundant form of genetic variations in closely related microbial strains or isolates and, therefore, are widely used for studying microbial phylogeny and epidemiology. Highly informative sets of SNPs can be selected from large datasets of DNA sequences, such as entire multi-locus seque...