sergey sidorenko - Academia.edu (original) (raw)
Papers by sergey sidorenko
Antibiotics and Chemotherapy
The rapid spread of gram-negative bacteria resistance to carbapenems due to the production of car... more The rapid spread of gram-negative bacteria resistance to carbapenems due to the production of carbapenemases requires new treatment options. The activity of carbapenem antibiotic biapenem, recently registered in Russia, against producers of various carbapenemases was studied in comparison with other antibiotics of this group. Among NDM-type carbapenemase producers, 77.8% demonstrated clinical susceptibility to biapenem; 50.3% and 21.1% of isolates were susceptible to meropenem and imipenem, respectively. Among the producers of OXA-48-type carbapenemases, 82,6%, 60,9%, and 65,2% of isolates demonstrated susceptibility to biapenem, imipenem, and meropenem, respectively.Producers of KPC-type carbapenemases were 100% resistant to all carbapenems. The introduction of biapenem will significantly expand the possibilities of treating severe infections caused by carbapenemase producers.
Журнал инфектологии, Oct 6, 2018
Резюме Актуальность. Избыточное назначение антимикробных препаратов (АМП), а также низкая приверж... more Резюме Актуальность. Избыточное назначение антимикробных препаратов (АМП), а также низкая приверженность мерам инфекционного контроля являются ведущими факторами развития бактериальной резистентности. Несмотря на наличие многочисленных руководств по ведению пациентов с инфекциями различной локализации, им не соответствует до 50% назначений АМП. Цель. Оценка структуры и динамики потребления антимикробных препаратов (АМП) для системного применения в стационарной сети г.
Antibiotics and Chemotherapy, 2022
Escherichia coli isolates from various sources from 2018 to 2019 were included in the study. Mcr-... more Escherichia coli isolates from various sources from 2018 to 2019 were included in the study. Mcr-1 genes were found in two of 105 animal strains (2%) and seven of 928 human strains (0.8%). All mcr-1-positive strains showed a low level of resistance to colistin (MIC ranged from 4 to 8 µg/ml). Both strains isolated from animals remained sensitive to betalactam antibiotics and did not contain beta-lactamase genes. Beta-lactamases were absent only in one of the strains isolated from humans. Four strains were resistant to cephalosporins with sensitivity to carbapenems and carried class A (blaCTX-M-15 or blaCTX-M-1) or class C (blaCMY-2) extended-spectrum beta-lactamases genes. One strain showed resistance to cephalosporins and meropenem and contained four beta-lactamase genes: blaNDM-1, blaCTX-M-15, blaTEM-1B, and blaCMY-6. Only one strain isolated from animals remained sensitive to ciprofloxacin, the rest showed high level of resistance, had amino acid substitutions in the DNA gyrase ge...
Antibiotics and Chemotherapy, 2020
Glycopeptides are the basis of the treatment of infections caused by MRSA (Methicillin-Resistant ... more Glycopeptides are the basis of the treatment of infections caused by MRSA (Methicillin-Resistant Staphylococcus aureus). Previously, it was demonstrated that antibiotic tolerant phenotypes are formed during selection of resistance under the influence of high concentrations of antibiotics. The present study uses a similar in vitro selection model with vancomycin. Clinical isolates of MRSA belonging to genetic lines ST8 and ST239, as well as the MSSA (ATCC29213) strain, were included in the experiment. Test isolates were incubated for five hours in a medium with a high concentration of vancomycin (50 μg/ml). Test cultures were grown on the medium without antibiotic for 18 hours after each exposure. A total of ten exposure cycles were performed. Vancomycin was characterized by bacteriostatic action; the proportion of surviving cells after exposure was 70–100%. After selection, there was a slight increase in the MIC to vancomycin (MIC 2 μg/ml), teicoplanin (MIC 1.5–3 μg/ml) and daptomyc...
Journal of Clinical Practice, 2011
The article presents the evolution of development of bacteriological service of research institut... more The article presents the evolution of development of bacteriological service of research institute of children's infections within 50 years. Practical value of science and practice interaction at all stages of development of service is defined.
Clinical Microbiology and Antimicrobial Chemotherapy, 2018
The following key issues of pneumococcal infection prophylaxis were discussed during the expert c... more The following key issues of pneumococcal infection prophylaxis were discussed during the expert council: incidence rates of community-acquired pneumococcal pneumonia and other pneumococcal infections, local epidemiological data, increases in antimicrobial resistance and pneumococcal serotypes substitution, current international and Russian clinical guidelines, practical approaches, and pneumococcal vaccination coverage of adult population in the Russian Federation. The agreement between the experts about a need to distinguish the use of conjugate vaccines and polysaccharide vaccines in different subpopulations has been achieved.
Journal of Clinical Microbiology, 1999
Twelve Salmonella typhimurium strains resistant to broad-spectrum cephalosporins were isolated fr... more Twelve Salmonella typhimurium strains resistant to broad-spectrum cephalosporins were isolated from cases of gastroenteritis during 1996 to 1998 in Russia, Hungary, and Greece. Resistance was due to the production of CTX-M-type extended-spectrum β-lactamases encoded by similar 12-kb plasmids. By pulsed-field gel electrophoresis, all strains shared the same chromosomal type. These data suggest that an S. typhimurium clone resistant to broad-spectrum cephalosporins is present in at least three European countries.
PHARMACOECONOMICS. Modern pharmacoeconomics and pharmacoepidemiology, 2018
Прогнозирование резистентности: от математического моделирования к фармакоэкономике Обзор мировог... more Прогнозирование резистентности: от математического моделирования к фармакоэкономике Обзор мирового опыта разработки показателей оценки качества медицинской помощи для амбулаторного этапа ее оказания Том 11
Antimicrobial Agents and Chemotherapy, 1998
The sequence of the gene encoding a novel cefotaxime-hydrolyzing β-lactamase (CTX-M-4) was determ... more The sequence of the gene encoding a novel cefotaxime-hydrolyzing β-lactamase (CTX-M-4) was determined. It was located in a plasmid harbored by a Salmonella typhimurium strain. CTX-M-4 was similar to the plasmidic cefotaxime-hydrolyzing β-lactamases CTX-M-2 and Toho-1 and related to the chromosomal β-lactamase of Klebsiella oxytoca . A Ser-237→Ala substitution, introduced by site-directed mutagenesis, caused minor alterations in the interaction of CTX-M-4 with β-lactams, reducing slightly the relative hydrolytic activity against cefotaxime and the susceptibility to inhibition by clavulanate.
Expert review of vaccines, Apr 22, 2016
The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningo... more The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningococcal disease (MD) and its continually changing epidemiology. Areas covered: Although recent vaccination programs have been successful in reducing incidence in many countries (e.g. Neisseria meningitidis serogroup [Men]C in Brazil, MenA in the African meningitis belt), new clones have emerged, causing outbreaks (e.g. MenW in South America, MenC in Nigeria and Niger). The importance of herd protection was highlighted, emphasizing the need for high vaccination uptake among those with the highest carriage rates, as was the need for boosters to maintain individual and herd protection following decline of immune response after primary immunization. Expert commentary: The GMI Global Recommendations for Meningococcal Disease were updated to include a recommendation to enable access to whole-genome sequencing as for surveillance, guidance on strain typing to guide use of subcapsular vaccines, a...
Value in Health, 2016
Objectives: This study aimed to evaluate the experience of community pharmacies in the management... more Objectives: This study aimed to evaluate the experience of community pharmacies in the management of acute diarrhea in northern Ethiopia. MethOds: A simulated case-based cross-sectional study was conducted in community pharmacies from five towns of northern Ethiopia between April 2015 and September 2015. Convenience sampling technique was used to select sample towns. A structured questionnaire was organized to collect the information. Descriptive statistics, chisquared test, one-way analysis of variance, and binary logistic regression were performed to describe, infer, and test for association between the variables. SPSS for Windows Version 21 was used to enter and analyze the data. A 95% confidence interval and P-value of 0.05 were set to test the level of significance. Results: Approximately 113 community pharmacies were visited to collect the required data from five towns. Majority (78, 69%) of them were located away from hospitals and health care areas. Nine components of history taking were presented for dispensers. Regarding the patient history, "age" was frequently taken, (90.3%), whereas "chief complaint" was the least to be taken (23%), for patients presenting with diarrhea. Approximately 96 (85.0%) cases were provided with one or more medications. The remaining 17 (15%) cases did not receive any medication. A total of six pharmacologic groups of medications were given to alleviate acute diarrheal symptoms. Majority (66, 29.6%) of the medications were oral rehydration salts with zinc. The mean number of medications was 1.99 per visit. Components of advice, such as dose, frequency, duration, drug action, and adverse drug reactions, were found to vary among the five towns at a statistically significant level. cOnclusiOns: Community pharmacies provided inadequate treatment for acute childhood diarrhea. Inappropriate history taking and incorrect drug and food instructions have been frequently encountered during acute diarrhea management. Practitioners working in northern Ethiopia should receive proper training on the management of acute childhood diarrhea.
Human Vaccines & Immunotherapeutics, 2016
Pneumococcal infection is a major cause of morbidity and mortality worldwide. The burden of disea... more Pneumococcal infection is a major cause of morbidity and mortality worldwide. The burden of disease associated with S. pneumoniae is largely preventable through routine vaccination. Pneumococcal conjugate vaccines (e.g. PCV7, PCV13) provide protection from invasive pneumococcal disease as well as non-invasive infection (pneumonia, acute otitis media), and decrease vaccine-type nasopharyngeal colonisation, thus reducing transmission to unvaccinated individuals. PCVs have also been shown to reduce the incidence of antibiotic-resistant pneumococcal disease. Surveillance for pneumococcal disease is important to understand local epidemiology, serotype distribution and antibiotic resistance rates. Surveillance systems also help to inform policy development, including vaccine recommendations, and monitor the impact of pneumococcal vaccination. National pneumococcal surveillance systems exist in a number of countries in Central and Eastern Europe (such as Croatia, Czech Republic, Hungary, Poland, Romania and Slovakia), and some have introduced PCVs (Czech Republic, Hungary, Kazakhstan, Russia, Slovakia and Turkey). Those countries without established programs (such as Kazakhstan, Russia and Ukraine) may be able to learn from the experiences of those with national surveillance systems. The serotype distributions and impact of PCV13 on pediatric pneumococcal diseases are relatively similar in different parts of the world, suggesting that approaches to vaccination used elsewhere are also likely to be effective in Central and Eastern Europe. This article briefly reviews the epidemiology of pneumococcal disease, presents the latest surveillance data from Central and Eastern Europe, and discusses any similarities and differences in these data as well the potential implications for vaccination policies in the region.
Antibiotiki i khimioterapii͡a = Antibiotics and chemoterapy [sic] / Ministerstvo meditsinskoĭ i mikrobiologicheskoĭ promyshlennosti SSSR, 2007
New fluoroquinolones with higher antipneumococcal activity are considered promising in the treatm... more New fluoroquinolones with higher antipneumococcal activity are considered promising in the treatment of respiratory tract infections. Still, their wide use in clinical practice is connected with possible selection and rapid distribution of the resistance, requiring constant monitoring. Development of resistance to fluoroquinolones results from step-wise accumulation of mutations in the genes of DNA-gyrase and topoisomerase IV, the mutations of the first step being not always accompanied by a significant increase of the MIC of the new fluoroquinolones. Therefore, to detect the first signs of the resistance development, it is necessary not only to detect the susceptibility of the circulating Streptococcus pneumoniae strains phenotypically, but also to detect the genetic changes. In the present study the minisequent reaction followed by detection of the reaction products by MALD-ToF mass-spectrometry was used to reveal the mutations in the genes of the fluoroquinolone targets of 38 S. ...
Antibiotiki i khimioterapii͡a = Antibiotics and chemoterapy [sic] / Ministerstvo meditsinskoĭ i mikrobiologicheskoĭ promyshlennosti SSSR, 2005
A rise of resistance in uropathogens to all agents used for the management of urinary tract infec... more A rise of resistance in uropathogens to all agents used for the management of urinary tract infections has been observed in Moscow. However, because of the broad spectrum and favourable safety parameters, fluoroquinolones remain the drugs of choice for the treatment of community-acquired urinary tract infections. Among them levofloxacin is preferable. When the use of fluoroquinolones is contraindicated, the 1st-3rd generation cephalosporins are advisable. Nitrofurans are expedient in the treatment of acute and relapsing cystitis. By the antibacterial activity and bioavailability sodium furasidin is advantages among the nitrofurans.
Molekuliarnaia genetika, mikrobiologiia i virusologiia, 2005
Fluoroquinolones still belong to the drugs of choice in the treatment of uncomplicated gonorrhea.... more Fluoroquinolones still belong to the drugs of choice in the treatment of uncomplicated gonorrhea. At the same time, there have been more data on the spreading N. gonorrhoeae strains resistant to fluoroquinolones. A variety of mechanisms, like modification of the target of antibiotic's action (point mutations in genes gyrA and parC), a decreasing permeability of the bacterial cell membrane (amino-acid changes Por protein) and a growing efflux of antibiotic (mutations in the promoter or in the coding region of mtrR) mediate in the shaping resistance of the drugs. The MIC values for four fluoroquinolone-series antibiotics were determined and the gyrA, parC, por and mtrR genes were examined for resistance-responsible mutations in 32 studied clinical strains of N. gonorrhoeae. Strains with high resistance to fluoroquinolones were detected; 3 of them had no common changes in GyrA or ParC, however, amino acid changes and mutations were detected in Por protein and promoter or gene mtrR ...
Value in Health, 2012
integrated chronic care approach in patients with atrial fibrillation compared to usual care. The... more integrated chronic care approach in patients with atrial fibrillation compared to usual care. The objective of the present study is to assess cost-effectiveness of this nurse-led care program versus usual care. METHODS: A cost effectiveness analysis was undertaken alongside the randomized controlled trial in which 712 patients were included at the Maastricht University Medical Centre, Maastricht, The Netherlands, and allocated to nurse-led care or usual care. Nurse-led care implied guideline adherent management, steered by dedicated software and supervised by cardiologists. Usual care was regular outpatient care performed by cardiologists. A cost per lifeyear as well as a cost per QALY analysis was performed, both from a hospital perspective. QALYs were based on scores of the Short Form 36 questionnaire (SF-36), converted to utility scores by extracting the Short Form 6D (SF-6D). All unit prices were supplied by the hospital's financial department, except for prices for medication, which were taken from the Dutch Pharmacotherapeutic Compass. Results represented the costs and effects for a 12 months follow-up period. RESULTS: The nurse-led care program was associated with slightly more lifeyears and QALYs at a lower cost. Specifically, the nurse-led program contributed to 0.086 QALY gains with a reduced cost of € 1102.77 per patient and a gain of 0.02 life years with a reduced cost of € 731.62 per patient. Therefore, the nurse-led program would be considered dominant. In fact, for all the possible values of willingness to pay for a QALY the nurse-led program is considered to be more likely cost effective than the care as usual. CONCLUSIONS: The cost-effectiveness analysis in the present study demonstrated that a nurse-led integrated care approach is very likely a costeffective management strategy for patients with atrial fibrillation.
Value in Health, 2010
OBJECTIVES: To document real-world utilization patterns and costs of peginterferon plus ribavirin... more OBJECTIVES: To document real-world utilization patterns and costs of peginterferon plus ribavirin combination therapy in the management of chronic hepatitis C virus (C-HCV) in Europe. METHODS: Patient charts from clinics in the UK,
International Journal of Antimicrobial Agents, 2010
Spread of vancomycin-resistant Enterococcus faecium in two haematological centres in Russia.
International Journal of Antimicrobial Agents, 2007
Antibiotics and Chemotherapy
The rapid spread of gram-negative bacteria resistance to carbapenems due to the production of car... more The rapid spread of gram-negative bacteria resistance to carbapenems due to the production of carbapenemases requires new treatment options. The activity of carbapenem antibiotic biapenem, recently registered in Russia, against producers of various carbapenemases was studied in comparison with other antibiotics of this group. Among NDM-type carbapenemase producers, 77.8% demonstrated clinical susceptibility to biapenem; 50.3% and 21.1% of isolates were susceptible to meropenem and imipenem, respectively. Among the producers of OXA-48-type carbapenemases, 82,6%, 60,9%, and 65,2% of isolates demonstrated susceptibility to biapenem, imipenem, and meropenem, respectively.Producers of KPC-type carbapenemases were 100% resistant to all carbapenems. The introduction of biapenem will significantly expand the possibilities of treating severe infections caused by carbapenemase producers.
Журнал инфектологии, Oct 6, 2018
Резюме Актуальность. Избыточное назначение антимикробных препаратов (АМП), а также низкая приверж... more Резюме Актуальность. Избыточное назначение антимикробных препаратов (АМП), а также низкая приверженность мерам инфекционного контроля являются ведущими факторами развития бактериальной резистентности. Несмотря на наличие многочисленных руководств по ведению пациентов с инфекциями различной локализации, им не соответствует до 50% назначений АМП. Цель. Оценка структуры и динамики потребления антимикробных препаратов (АМП) для системного применения в стационарной сети г.
Antibiotics and Chemotherapy, 2022
Escherichia coli isolates from various sources from 2018 to 2019 were included in the study. Mcr-... more Escherichia coli isolates from various sources from 2018 to 2019 were included in the study. Mcr-1 genes were found in two of 105 animal strains (2%) and seven of 928 human strains (0.8%). All mcr-1-positive strains showed a low level of resistance to colistin (MIC ranged from 4 to 8 µg/ml). Both strains isolated from animals remained sensitive to betalactam antibiotics and did not contain beta-lactamase genes. Beta-lactamases were absent only in one of the strains isolated from humans. Four strains were resistant to cephalosporins with sensitivity to carbapenems and carried class A (blaCTX-M-15 or blaCTX-M-1) or class C (blaCMY-2) extended-spectrum beta-lactamases genes. One strain showed resistance to cephalosporins and meropenem and contained four beta-lactamase genes: blaNDM-1, blaCTX-M-15, blaTEM-1B, and blaCMY-6. Only one strain isolated from animals remained sensitive to ciprofloxacin, the rest showed high level of resistance, had amino acid substitutions in the DNA gyrase ge...
Antibiotics and Chemotherapy, 2020
Glycopeptides are the basis of the treatment of infections caused by MRSA (Methicillin-Resistant ... more Glycopeptides are the basis of the treatment of infections caused by MRSA (Methicillin-Resistant Staphylococcus aureus). Previously, it was demonstrated that antibiotic tolerant phenotypes are formed during selection of resistance under the influence of high concentrations of antibiotics. The present study uses a similar in vitro selection model with vancomycin. Clinical isolates of MRSA belonging to genetic lines ST8 and ST239, as well as the MSSA (ATCC29213) strain, were included in the experiment. Test isolates were incubated for five hours in a medium with a high concentration of vancomycin (50 μg/ml). Test cultures were grown on the medium without antibiotic for 18 hours after each exposure. A total of ten exposure cycles were performed. Vancomycin was characterized by bacteriostatic action; the proportion of surviving cells after exposure was 70–100%. After selection, there was a slight increase in the MIC to vancomycin (MIC 2 μg/ml), teicoplanin (MIC 1.5–3 μg/ml) and daptomyc...
Journal of Clinical Practice, 2011
The article presents the evolution of development of bacteriological service of research institut... more The article presents the evolution of development of bacteriological service of research institute of children's infections within 50 years. Practical value of science and practice interaction at all stages of development of service is defined.
Clinical Microbiology and Antimicrobial Chemotherapy, 2018
The following key issues of pneumococcal infection prophylaxis were discussed during the expert c... more The following key issues of pneumococcal infection prophylaxis were discussed during the expert council: incidence rates of community-acquired pneumococcal pneumonia and other pneumococcal infections, local epidemiological data, increases in antimicrobial resistance and pneumococcal serotypes substitution, current international and Russian clinical guidelines, practical approaches, and pneumococcal vaccination coverage of adult population in the Russian Federation. The agreement between the experts about a need to distinguish the use of conjugate vaccines and polysaccharide vaccines in different subpopulations has been achieved.
Journal of Clinical Microbiology, 1999
Twelve Salmonella typhimurium strains resistant to broad-spectrum cephalosporins were isolated fr... more Twelve Salmonella typhimurium strains resistant to broad-spectrum cephalosporins were isolated from cases of gastroenteritis during 1996 to 1998 in Russia, Hungary, and Greece. Resistance was due to the production of CTX-M-type extended-spectrum β-lactamases encoded by similar 12-kb plasmids. By pulsed-field gel electrophoresis, all strains shared the same chromosomal type. These data suggest that an S. typhimurium clone resistant to broad-spectrum cephalosporins is present in at least three European countries.
PHARMACOECONOMICS. Modern pharmacoeconomics and pharmacoepidemiology, 2018
Прогнозирование резистентности: от математического моделирования к фармакоэкономике Обзор мировог... more Прогнозирование резистентности: от математического моделирования к фармакоэкономике Обзор мирового опыта разработки показателей оценки качества медицинской помощи для амбулаторного этапа ее оказания Том 11
Antimicrobial Agents and Chemotherapy, 1998
The sequence of the gene encoding a novel cefotaxime-hydrolyzing β-lactamase (CTX-M-4) was determ... more The sequence of the gene encoding a novel cefotaxime-hydrolyzing β-lactamase (CTX-M-4) was determined. It was located in a plasmid harbored by a Salmonella typhimurium strain. CTX-M-4 was similar to the plasmidic cefotaxime-hydrolyzing β-lactamases CTX-M-2 and Toho-1 and related to the chromosomal β-lactamase of Klebsiella oxytoca . A Ser-237→Ala substitution, introduced by site-directed mutagenesis, caused minor alterations in the interaction of CTX-M-4 with β-lactams, reducing slightly the relative hydrolytic activity against cefotaxime and the susceptibility to inhibition by clavulanate.
Expert review of vaccines, Apr 22, 2016
The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningo... more The 2015 Global Meningococcal Initiative (GMI) meeting discussed the global importance of meningococcal disease (MD) and its continually changing epidemiology. Areas covered: Although recent vaccination programs have been successful in reducing incidence in many countries (e.g. Neisseria meningitidis serogroup [Men]C in Brazil, MenA in the African meningitis belt), new clones have emerged, causing outbreaks (e.g. MenW in South America, MenC in Nigeria and Niger). The importance of herd protection was highlighted, emphasizing the need for high vaccination uptake among those with the highest carriage rates, as was the need for boosters to maintain individual and herd protection following decline of immune response after primary immunization. Expert commentary: The GMI Global Recommendations for Meningococcal Disease were updated to include a recommendation to enable access to whole-genome sequencing as for surveillance, guidance on strain typing to guide use of subcapsular vaccines, a...
Value in Health, 2016
Objectives: This study aimed to evaluate the experience of community pharmacies in the management... more Objectives: This study aimed to evaluate the experience of community pharmacies in the management of acute diarrhea in northern Ethiopia. MethOds: A simulated case-based cross-sectional study was conducted in community pharmacies from five towns of northern Ethiopia between April 2015 and September 2015. Convenience sampling technique was used to select sample towns. A structured questionnaire was organized to collect the information. Descriptive statistics, chisquared test, one-way analysis of variance, and binary logistic regression were performed to describe, infer, and test for association between the variables. SPSS for Windows Version 21 was used to enter and analyze the data. A 95% confidence interval and P-value of 0.05 were set to test the level of significance. Results: Approximately 113 community pharmacies were visited to collect the required data from five towns. Majority (78, 69%) of them were located away from hospitals and health care areas. Nine components of history taking were presented for dispensers. Regarding the patient history, "age" was frequently taken, (90.3%), whereas "chief complaint" was the least to be taken (23%), for patients presenting with diarrhea. Approximately 96 (85.0%) cases were provided with one or more medications. The remaining 17 (15%) cases did not receive any medication. A total of six pharmacologic groups of medications were given to alleviate acute diarrheal symptoms. Majority (66, 29.6%) of the medications were oral rehydration salts with zinc. The mean number of medications was 1.99 per visit. Components of advice, such as dose, frequency, duration, drug action, and adverse drug reactions, were found to vary among the five towns at a statistically significant level. cOnclusiOns: Community pharmacies provided inadequate treatment for acute childhood diarrhea. Inappropriate history taking and incorrect drug and food instructions have been frequently encountered during acute diarrhea management. Practitioners working in northern Ethiopia should receive proper training on the management of acute childhood diarrhea.
Human Vaccines & Immunotherapeutics, 2016
Pneumococcal infection is a major cause of morbidity and mortality worldwide. The burden of disea... more Pneumococcal infection is a major cause of morbidity and mortality worldwide. The burden of disease associated with S. pneumoniae is largely preventable through routine vaccination. Pneumococcal conjugate vaccines (e.g. PCV7, PCV13) provide protection from invasive pneumococcal disease as well as non-invasive infection (pneumonia, acute otitis media), and decrease vaccine-type nasopharyngeal colonisation, thus reducing transmission to unvaccinated individuals. PCVs have also been shown to reduce the incidence of antibiotic-resistant pneumococcal disease. Surveillance for pneumococcal disease is important to understand local epidemiology, serotype distribution and antibiotic resistance rates. Surveillance systems also help to inform policy development, including vaccine recommendations, and monitor the impact of pneumococcal vaccination. National pneumococcal surveillance systems exist in a number of countries in Central and Eastern Europe (such as Croatia, Czech Republic, Hungary, Poland, Romania and Slovakia), and some have introduced PCVs (Czech Republic, Hungary, Kazakhstan, Russia, Slovakia and Turkey). Those countries without established programs (such as Kazakhstan, Russia and Ukraine) may be able to learn from the experiences of those with national surveillance systems. The serotype distributions and impact of PCV13 on pediatric pneumococcal diseases are relatively similar in different parts of the world, suggesting that approaches to vaccination used elsewhere are also likely to be effective in Central and Eastern Europe. This article briefly reviews the epidemiology of pneumococcal disease, presents the latest surveillance data from Central and Eastern Europe, and discusses any similarities and differences in these data as well the potential implications for vaccination policies in the region.
Antibiotiki i khimioterapii͡a = Antibiotics and chemoterapy [sic] / Ministerstvo meditsinskoĭ i mikrobiologicheskoĭ promyshlennosti SSSR, 2007
New fluoroquinolones with higher antipneumococcal activity are considered promising in the treatm... more New fluoroquinolones with higher antipneumococcal activity are considered promising in the treatment of respiratory tract infections. Still, their wide use in clinical practice is connected with possible selection and rapid distribution of the resistance, requiring constant monitoring. Development of resistance to fluoroquinolones results from step-wise accumulation of mutations in the genes of DNA-gyrase and topoisomerase IV, the mutations of the first step being not always accompanied by a significant increase of the MIC of the new fluoroquinolones. Therefore, to detect the first signs of the resistance development, it is necessary not only to detect the susceptibility of the circulating Streptococcus pneumoniae strains phenotypically, but also to detect the genetic changes. In the present study the minisequent reaction followed by detection of the reaction products by MALD-ToF mass-spectrometry was used to reveal the mutations in the genes of the fluoroquinolone targets of 38 S. ...
Antibiotiki i khimioterapii͡a = Antibiotics and chemoterapy [sic] / Ministerstvo meditsinskoĭ i mikrobiologicheskoĭ promyshlennosti SSSR, 2005
A rise of resistance in uropathogens to all agents used for the management of urinary tract infec... more A rise of resistance in uropathogens to all agents used for the management of urinary tract infections has been observed in Moscow. However, because of the broad spectrum and favourable safety parameters, fluoroquinolones remain the drugs of choice for the treatment of community-acquired urinary tract infections. Among them levofloxacin is preferable. When the use of fluoroquinolones is contraindicated, the 1st-3rd generation cephalosporins are advisable. Nitrofurans are expedient in the treatment of acute and relapsing cystitis. By the antibacterial activity and bioavailability sodium furasidin is advantages among the nitrofurans.
Molekuliarnaia genetika, mikrobiologiia i virusologiia, 2005
Fluoroquinolones still belong to the drugs of choice in the treatment of uncomplicated gonorrhea.... more Fluoroquinolones still belong to the drugs of choice in the treatment of uncomplicated gonorrhea. At the same time, there have been more data on the spreading N. gonorrhoeae strains resistant to fluoroquinolones. A variety of mechanisms, like modification of the target of antibiotic's action (point mutations in genes gyrA and parC), a decreasing permeability of the bacterial cell membrane (amino-acid changes Por protein) and a growing efflux of antibiotic (mutations in the promoter or in the coding region of mtrR) mediate in the shaping resistance of the drugs. The MIC values for four fluoroquinolone-series antibiotics were determined and the gyrA, parC, por and mtrR genes were examined for resistance-responsible mutations in 32 studied clinical strains of N. gonorrhoeae. Strains with high resistance to fluoroquinolones were detected; 3 of them had no common changes in GyrA or ParC, however, amino acid changes and mutations were detected in Por protein and promoter or gene mtrR ...
Value in Health, 2012
integrated chronic care approach in patients with atrial fibrillation compared to usual care. The... more integrated chronic care approach in patients with atrial fibrillation compared to usual care. The objective of the present study is to assess cost-effectiveness of this nurse-led care program versus usual care. METHODS: A cost effectiveness analysis was undertaken alongside the randomized controlled trial in which 712 patients were included at the Maastricht University Medical Centre, Maastricht, The Netherlands, and allocated to nurse-led care or usual care. Nurse-led care implied guideline adherent management, steered by dedicated software and supervised by cardiologists. Usual care was regular outpatient care performed by cardiologists. A cost per lifeyear as well as a cost per QALY analysis was performed, both from a hospital perspective. QALYs were based on scores of the Short Form 36 questionnaire (SF-36), converted to utility scores by extracting the Short Form 6D (SF-6D). All unit prices were supplied by the hospital's financial department, except for prices for medication, which were taken from the Dutch Pharmacotherapeutic Compass. Results represented the costs and effects for a 12 months follow-up period. RESULTS: The nurse-led care program was associated with slightly more lifeyears and QALYs at a lower cost. Specifically, the nurse-led program contributed to 0.086 QALY gains with a reduced cost of € 1102.77 per patient and a gain of 0.02 life years with a reduced cost of € 731.62 per patient. Therefore, the nurse-led program would be considered dominant. In fact, for all the possible values of willingness to pay for a QALY the nurse-led program is considered to be more likely cost effective than the care as usual. CONCLUSIONS: The cost-effectiveness analysis in the present study demonstrated that a nurse-led integrated care approach is very likely a costeffective management strategy for patients with atrial fibrillation.
Value in Health, 2010
OBJECTIVES: To document real-world utilization patterns and costs of peginterferon plus ribavirin... more OBJECTIVES: To document real-world utilization patterns and costs of peginterferon plus ribavirin combination therapy in the management of chronic hepatitis C virus (C-HCV) in Europe. METHODS: Patient charts from clinics in the UK,
International Journal of Antimicrobial Agents, 2010
Spread of vancomycin-resistant Enterococcus faecium in two haematological centres in Russia.
International Journal of Antimicrobial Agents, 2007