Extended-spectrum β-lactamase & carbapenemase-producing fermentative Gram-negative bacilli in clinical isolates from a University Hospital in Southern Italy. 2021

Giuseppe Mancuso, and Angelina Midiri, and Sebastiana Zummo, and Elisabetta Gerace, and Giuseppina Scappatura, and Carmelo Biondo
Department of Human Pathology, University of Messina, Messina, Italy.

The aim of this study was to determine the prevalence of extended-spectrum β-lactamases (ESBLs)- and carbapenemase-producing fermentative Gram-negative bacteria (FGNB) in a University Hospital in Southern Italy. These bacteria have the potential to disseminate bacterial resistance in healthcare settings and cause untreatable and prolonged infections associated with high rates of mortality. A retrospective observational study was carried out in a University Hospital in Sicily from January to December 2019. A total of 1046 FGNB were recovered from different clinical samples among which 40%, 15% and 37% were, respectively, MDR, carbapenemase and ESBL producers. Antibiotic resistance profile of FGNB against the first-line drugs was remarkably high. K. pneumoniae (57%) followed by E. coli (27%) were found here as the major sources of ESBL producers. The highest proportion of ESBL producers was from ICU ward (72%), and were isolated from urine samples (63.6%) followed by blood samples (54%). Carbapenemase production among the FGNB in our study was about 0.9%, which is more than twice than the prevalence rate reported by the European Antimicrobial Resistance Surveillance Network (ECDC) (0.4%). To our knowledge, this is the first report on the prevalence of ESBL and carbapenemase-producing FGNB in this region. Our data clearly indicate the importance of implementing antibiotic stewardship strategies in our region to reduce the unnecessary use of antibiotics.

UI MeSH Term Description Entries
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D006090 Gram-Negative Bacteria Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method. Gram Negative Bacteria
D006761 Hospitals Institutions with an organized medical staff which provide medical care to patients. Hospital
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000900 Anti-Bacterial Agents Substances that inhibit the growth or reproduction of BACTERIA. Anti-Bacterial Agent,Anti-Bacterial Compound,Anti-Mycobacterial Agent,Antibacterial Agent,Antibiotics,Antimycobacterial Agent,Bacteriocidal Agent,Bacteriocide,Anti-Bacterial Compounds,Anti-Mycobacterial Agents,Antibacterial Agents,Antibiotic,Antimycobacterial Agents,Bacteriocidal Agents,Bacteriocides,Agent, Anti-Bacterial,Agent, Anti-Mycobacterial,Agent, Antibacterial,Agent, Antimycobacterial,Agent, Bacteriocidal,Agents, Anti-Bacterial,Agents, Anti-Mycobacterial,Agents, Antibacterial,Agents, Antimycobacterial,Agents, Bacteriocidal,Anti Bacterial Agent,Anti Bacterial Agents,Anti Bacterial Compound,Anti Bacterial Compounds,Anti Mycobacterial Agent,Anti Mycobacterial Agents,Compound, Anti-Bacterial,Compounds, Anti-Bacterial
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D001618 beta-Lactamases Enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring. Well known antibiotics destroyed by these enzymes are penicillins and cephalosporins. beta-Lactamase,beta Lactamase,beta Lactamases
D012802 Sicily An island located in the Mediterranean Sea and governed by Italy,
D024901 Drug Resistance, Multiple, Bacterial The ability of bacteria to resist or to become tolerant to several structurally and functionally distinct drugs simultaneously. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS). Drug Resistance, Extensive, Bacterial,Drug Resistance, Extensively, Bacterial,Extensive Antibacterial Drug Resistance,Extensively Antibacterial Drug Resistance,Multidrug Resistance, Bacterial,Multiple Antibacterial Drug Resistance,Bacterial Multidrug Resistance,Bacterial Multidrug Resistances,Resistance, Bacterial Multidrug

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