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A V Dekhnich

Publications and source records attributed to A V Dekhnich.

3 recordsLinked to original sources

Antimicrobial resistance of nosocomial strains of Staphylococcus aureus in Russia: results of a prospective study.

A total of 879 Staphylococcus aureus clinical isolates from 17 medical institutions in different regions of Russia were tested. Susceptibility to 18 antimicrobials was determined by agar dilution in accordance with the NCCLS recommendations. The most potent antimicrobials were glycopeptides, linezolid, and fusidic acid, to which no resistance was found. Other antimicrobials with low frequency of non-susceptibility were mupirocin (0.3%), trimethoprim/sulfamethoxazole (0.8%), quinupristin/dalfopristin (1.8%) and rifampicin (7.0%). Fluoroquinolones displayed moderate activity (5.8% of non-susceptible strains to moxifloxacin, 9.1% to levofloxacin, 13.1% to ciprofloxacin). High rates of non-susceptibility were found to clindamycin (27.1%), gentamicin (30.7%), tetracycline (37.1%), erythromycin (39.6%) and chloramphenicol (43.1%). The prevalence of oxacillin-resistant S. aureus (ORSA) was 33.5% and varied from 0% to 89.5% in different hospitals. ORSA were isolated most frequently in the burn units (77.5%), intensive care units (54.8%), trauma and orthopedics units (42.1%). This is the first multicenter study published of antimicrobial resistance of S. aureus in Russia which meets international standards.

Anti-Bacterial Agents↗

[The results of a multicenter study of the comparative activity of cefepime and other antibiotics against the causative agents of severe hospital infections (the Micromax program)].

A multicentre trial was performed on the activity of cefepime in comparison with ceftazidime, ceftriaxone, piperacillin/tazobactam, imipenem and ciprofloxacin against severe hospital infection pathogens in intensive care units. The isolates of Escherichia coli and Proteus spp. from the majority of the centres were highly susceptible to the antibiotics (90 to 100 per cent of the isolates). In some centres up to 40 per cent of the isolates produced ESBL. The isolates of Klebsiella spp. were characterized by lower susceptibility, in some centres the frequency of the strains producing ESBL exceeded 90 per cent, by the MIC geometric mean cefepime was superior to the third generation cephalosporins, the frequency of resistance to ciprofloxacin ranged from 0 to 31 per cent, no resistance to imipenem was recorded. The frequency of resistance to the third generation cephalosporins and piperacillin/tazobactam in Enterobacter spp., Serratia spp., Citrobacter spp., Morganella spp., and Providencia spp. ranged from 10 to 52 per cent, the resistance to cefepime equaled 0-11 per cent, 0 to 17 per cent of the isolates were resistant to ciprofloxacin, some isolates were resistant to imipenem. As for the nonfermenting microorganisms their resistance to all the antibiotics tested was comparatively high and markedly differed in various centres. As a whole, 7 per cent of all the isolates of the nonfermenting organisms was resistant to cefepime, 10 per cent was resistant to imipenem, 17 per cent was resistant to ceftazidime, 21 per cent was resistant to piperacillin/tazobactam and 36 per cent was resistant to ciprofloxacin.

Acute Disease↗