Antimicrobial Resistance | CMAC

Antimicrobial Resistance

Prognostic Model of Microbial Resistance Based on the Relationship between Antibiotic Resistance and Consumption

Acquired bacterial resistance is one of the leading causes of morbidity and mortality attributed to infectious diseases. Simulations may provide opportunity to predict further spread of resistance and, to some extent, manage it. The objective of this …

Production of Carbapenemases in Klebsiella pneumoniae Isolated in Saint-Petersburg

Carbapenem-resistant nosocomial K. pneumoniae isolates are a significant problem in clinical practice. Carbapenem resistance in K. pneumoniae isolated from hospitalized patients was 2.8% over the study period. NDM-1 carbapenemase-producing strains …

Primary Antimicrobial Resistance among Helicobacter pylori Isolated in the Republic of Tatarstan in the 2008–2013

This study was aimed to determine isolation rate of H. pylori from gastric mucosal biopsies in 869 patients with chronic gastritis and gastric peptic ulcers in Republic of Tatarstan during the 2008–2013. A total of 45.5% of gastric biopsy samples …

Candida glabrata Resistance to Echinocandins Associated with FKS Genes Mutations: How Urgent is the Problem?

The resistance of the systemic Candida infections causative agents is a cornerstone of the selection of an effective therapy. But if before the problem was limited to resistance to azole antifungals, then by now we have enough data about cases of …

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).

In vitro Ceftaroline Activity against Major Bacterial Pathogens n Russia: Results of Multicenter Study

Background. Ceftaroline is a new broad-spectrum cephalosporin with in vitro activity against Gram-positive pathogens, including MRSA, and common Gram-negative pathogens. It is approved for the treatment of acute complicated bacterial skin and skin-structure infections (SSSIs) and community-acquired bacterial pneumonia. Objective. To determine in vitro activity of ceftaroline and other clinically available antimicrobials against major bacterial pathogens from different regions of Russian Federation. Materials and Methods. A total of 2778 consecutive, non-duplicate isolates were collected during multicentre microbiological in vitro study from 36 geographically distinct cities of Russia during 2008–2012.

Analysis of Antibiotic Resistance Genes in Intestinal Microbiota in Patients with Chronic Obstructive Pulmonary Disease

This paper presents the study results of the representation relative level and drug resistance genes composition of intestinal microbiota in COPD patients with subsequent evaluation of the antibiotic therapy courses frequency effect on the risk of …

«Checkerboard Array» as a Test for Evaluation of Decrease in Gram-Negative Bacteria Resistance to Carbapenems in the Presence of Bisphosphonate

One of the main mechanisms of resistance of Gramnegative microorganisms to antibiotics is enzymatic hydrolysis by beta-lactamases (for example, metallobeta-lactamases). Searching of paths of strengthening of carbapenems action is possible due to …

Evaluation of Prevalence of Classical Fluoroquinolone Resistance Mechanisms in Chlamydia trachomatis Due to Mutations in the Topoisomerase Genes

Until now, mutational resistance to fluoroquinolones (FQs) that represent a second-line treatment option for chlamydial infections after macrolides and tetrxacyclines has not been described in clinical isolates of C. trachomatis. However, a …

Antimicrobial Resistance of Nosocomial Staphylococcus aureus Isolates in Russia: Results of National Multicenter Surveillance Study «MARATHON» 2011–2012

In total 284 clinical nosocomial S. aureus strains isolated in 2011–2012 from patients hospitalized in 25 hospitals in 18 Russian cities were included in the study. Susceptibility to 19 antimicrobials was assessed by serial dilution method in …