Multidrug- and Extensively Drug-Resistant Acinetobacter baumannii in a Tertiary Hospital from Brazil: The Importance of Carbapenemase Encoding Genes and Epidemic Clonal Complexes in a 10-Year Study

This study aimed to characterize the main mechanisms of acquired antimicrobial resistance of 103 multidrug-resistant Acinetobacter baumannii isolated from bloodstream from 2006 to 2016 from a hospital in Londrina, Brazil. All 103 isolates were identified as A. baumannii by amplification of the bla O...

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Veröffentlicht in:Microbial drug resistance (Larchmont, N.Y.) N.Y.), 2019-11, Vol.25 (9), p.1365-1373
Hauptverfasser: Romanin, Priscila, Palermo, Raquel Lima, Cavalini, Jônatas Fernando, Fávaro, Larissa dos Santos, De Paula-Petroli, Suelen Balero, Fernandes, Eduardo Vignoto, dos Anjos Szczerepa, Márcia Maria, Tognim, Maria Cristina Bronharo, Yamada-Ogatta, Sueli Fumie, Carrara-Marroni, Floristher Elaine, Yamauchi, Lucy Megumi
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container_end_page 1373
container_issue 9
container_start_page 1365
container_title Microbial drug resistance (Larchmont, N.Y.)
container_volume 25
creator Romanin, Priscila
Palermo, Raquel Lima
Cavalini, Jônatas Fernando
Fávaro, Larissa dos Santos
De Paula-Petroli, Suelen Balero
Fernandes, Eduardo Vignoto
dos Anjos Szczerepa, Márcia Maria
Tognim, Maria Cristina Bronharo
Yamada-Ogatta, Sueli Fumie
Carrara-Marroni, Floristher Elaine
Yamauchi, Lucy Megumi
description This study aimed to characterize the main mechanisms of acquired antimicrobial resistance of 103 multidrug-resistant Acinetobacter baumannii isolated from bloodstream from 2006 to 2016 from a hospital in Londrina, Brazil. All 103 isolates were identified as A. baumannii by amplification of the bla OXA-51-like and rpo B genes. Mortality was observed in the majority (81.6%) of the patients. High non-susceptibility rates (100.0–10.7%) were obtained for the evaluated antimicrobials, including colistin, polymyxin B, and tigecycline, and most isolates were classified as extensively drug-resistant (78.6%). Carbapenemase production was observed in 92.2% of the isolates. All carbapenem-resistant isolates showed a carbapenem-hydrolyzing class D β-lactamase being either bla OXA-23-like (97.9%) or bla OXA-143-like (2.1%). None of the isolates had the genes bla OXA-24-like , bla OXA-58-like , bla OXA-48 , bla KPC , bla NDM , bla SPM-1 , bla SIM-1 , bla VIM , bla IMP , bla GIM , bla GES , mcr -1, qnr A, qnr B, qnr C, qnr S, and qnr Vc. As a genetic context of the bla OXA-23-like gene, Tn 2006 was predominated (86.0%), and Tn 2008 was less frequent (12.9%). Isolates harboring the bla OXA-143-like gene showed the bla OXA-253-like variant. A polyclonal profile was observed among the A. baumannii isolates. The presence of the international clonal complexes CC113/79, CC109/1, CC110/25, and CC103/15 was detected, with prevalence of CC113/79 (38.8%). This study provides essential information to understand the antimicrobial resistance patterns of A. baumannii and can be used to strengthen infection control measures in our hospital. Also, the study reinforces the urgent need to develop stewardship programs to avoid the spread and potential outbreaks by this pathogen.
doi_str_mv 10.1089/mdr.2019.0002
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All 103 isolates were identified as A. baumannii by amplification of the bla OXA-51-like and rpo B genes. Mortality was observed in the majority (81.6%) of the patients. High non-susceptibility rates (100.0–10.7%) were obtained for the evaluated antimicrobials, including colistin, polymyxin B, and tigecycline, and most isolates were classified as extensively drug-resistant (78.6%). Carbapenemase production was observed in 92.2% of the isolates. All carbapenem-resistant isolates showed a carbapenem-hydrolyzing class D β-lactamase being either bla OXA-23-like (97.9%) or bla OXA-143-like (2.1%). None of the isolates had the genes bla OXA-24-like , bla OXA-58-like , bla OXA-48 , bla KPC , bla NDM , bla SPM-1 , bla SIM-1 , bla VIM , bla IMP , bla GIM , bla GES , mcr -1, qnr A, qnr B, qnr C, qnr S, and qnr Vc. As a genetic context of the bla OXA-23-like gene, Tn 2006 was predominated (86.0%), and Tn 2008 was less frequent (12.9%). Isolates harboring the bla OXA-143-like gene showed the bla OXA-253-like variant. A polyclonal profile was observed among the A. baumannii isolates. The presence of the international clonal complexes CC113/79, CC109/1, CC110/25, and CC103/15 was detected, with prevalence of CC113/79 (38.8%). This study provides essential information to understand the antimicrobial resistance patterns of A. baumannii and can be used to strengthen infection control measures in our hospital. 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Isolates harboring the bla OXA-143-like gene showed the bla OXA-253-like variant. A polyclonal profile was observed among the A. baumannii isolates. The presence of the international clonal complexes CC113/79, CC109/1, CC110/25, and CC103/15 was detected, with prevalence of CC113/79 (38.8%). This study provides essential information to understand the antimicrobial resistance patterns of A. baumannii and can be used to strengthen infection control measures in our hospital. 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Palermo, Raquel Lima ; Cavalini, Jônatas Fernando ; Fávaro, Larissa dos Santos ; De Paula-Petroli, Suelen Balero ; Fernandes, Eduardo Vignoto ; dos Anjos Szczerepa, Márcia Maria ; Tognim, Maria Cristina Bronharo ; Yamada-Ogatta, Sueli Fumie ; Carrara-Marroni, Floristher Elaine ; Yamauchi, Lucy Megumi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-ca7abd6839a0947c41be028b539c539ceb4c0de5f0f5d3b06eef8f562884ae613</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Acinetobacter baumannii</topic><topic>Acinetobacter baumannii - drug effects</topic><topic>Acinetobacter baumannii - genetics</topic><topic>Acinetobacter baumannii - isolation &amp; purification</topic><topic>Acinetobacter Infections - drug therapy</topic><topic>Acinetobacter Infections - epidemiology</topic><topic>Acinetobacter Infections - microbiology</topic><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Anti-Bacterial Agents - pharmacology</topic><topic>Antibiotics</topic><topic>Antiinfectives and antibacterials</topic><topic>Antimicrobial agents</topic><topic>Antimicrobial resistance</topic><topic>Bacterial Proteins - genetics</topic><topic>beta-Lactamases - genetics</topic><topic>Brazil</topic><topic>Carbapenemase</topic><topic>Carbapenems - pharmacology</topic><topic>Child</topic><topic>Child, Preschool</topic><topic>Colistin</topic><topic>Drug resistance</topic><topic>Drug Resistance, Multiple, Bacterial</topic><topic>Epidemics</topic><topic>Epidemiology</topic><topic>Female</topic><topic>Genes</topic><topic>Humans</topic><topic>Infant</topic><topic>Infant, Newborn</topic><topic>Male</topic><topic>Microbial Sensitivity Tests</topic><topic>Middle Aged</topic><topic>Multidrug resistance</topic><topic>Polymyxin B</topic><topic>RpoB protein</topic><topic>Tertiary Care Centers</topic><topic>Tigecycline</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Romanin, Priscila</creatorcontrib><creatorcontrib>Palermo, Raquel Lima</creatorcontrib><creatorcontrib>Cavalini, Jônatas Fernando</creatorcontrib><creatorcontrib>Fávaro, Larissa dos Santos</creatorcontrib><creatorcontrib>De Paula-Petroli, Suelen Balero</creatorcontrib><creatorcontrib>Fernandes, Eduardo Vignoto</creatorcontrib><creatorcontrib>dos Anjos Szczerepa, Márcia Maria</creatorcontrib><creatorcontrib>Tognim, Maria Cristina Bronharo</creatorcontrib><creatorcontrib>Yamada-Ogatta, Sueli Fumie</creatorcontrib><creatorcontrib>Carrara-Marroni, Floristher Elaine</creatorcontrib><creatorcontrib>Yamauchi, Lucy Megumi</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Calcium &amp; 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All 103 isolates were identified as A. baumannii by amplification of the bla OXA-51-like and rpo B genes. Mortality was observed in the majority (81.6%) of the patients. High non-susceptibility rates (100.0–10.7%) were obtained for the evaluated antimicrobials, including colistin, polymyxin B, and tigecycline, and most isolates were classified as extensively drug-resistant (78.6%). Carbapenemase production was observed in 92.2% of the isolates. All carbapenem-resistant isolates showed a carbapenem-hydrolyzing class D β-lactamase being either bla OXA-23-like (97.9%) or bla OXA-143-like (2.1%). None of the isolates had the genes bla OXA-24-like , bla OXA-58-like , bla OXA-48 , bla KPC , bla NDM , bla SPM-1 , bla SIM-1 , bla VIM , bla IMP , bla GIM , bla GES , mcr -1, qnr A, qnr B, qnr C, qnr S, and qnr Vc. As a genetic context of the bla OXA-23-like gene, Tn 2006 was predominated (86.0%), and Tn 2008 was less frequent (12.9%). Isolates harboring the bla OXA-143-like gene showed the bla OXA-253-like variant. A polyclonal profile was observed among the A. baumannii isolates. The presence of the international clonal complexes CC113/79, CC109/1, CC110/25, and CC103/15 was detected, with prevalence of CC113/79 (38.8%). This study provides essential information to understand the antimicrobial resistance patterns of A. baumannii and can be used to strengthen infection control measures in our hospital. Also, the study reinforces the urgent need to develop stewardship programs to avoid the spread and potential outbreaks by this pathogen.</abstract><cop>United States</cop><pub>Mary Ann Liebert, Inc., publishers</pub><pmid>31361565</pmid><doi>10.1089/mdr.2019.0002</doi><tpages>9</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1076-6294
ispartof Microbial drug resistance (Larchmont, N.Y.), 2019-11, Vol.25 (9), p.1365-1373
issn 1076-6294
1931-8448
language eng
recordid cdi_proquest_miscellaneous_2267403492
source MEDLINE; Alma/SFX Local Collection
subjects Acinetobacter baumannii
Acinetobacter baumannii - drug effects
Acinetobacter baumannii - genetics
Acinetobacter baumannii - isolation & purification
Acinetobacter Infections - drug therapy
Acinetobacter Infections - epidemiology
Acinetobacter Infections - microbiology
Adolescent
Adult
Aged
Aged, 80 and over
Anti-Bacterial Agents - pharmacology
Antibiotics
Antiinfectives and antibacterials
Antimicrobial agents
Antimicrobial resistance
Bacterial Proteins - genetics
beta-Lactamases - genetics
Brazil
Carbapenemase
Carbapenems - pharmacology
Child
Child, Preschool
Colistin
Drug resistance
Drug Resistance, Multiple, Bacterial
Epidemics
Epidemiology
Female
Genes
Humans
Infant
Infant, Newborn
Male
Microbial Sensitivity Tests
Middle Aged
Multidrug resistance
Polymyxin B
RpoB protein
Tertiary Care Centers
Tigecycline
Young Adult
title Multidrug- and Extensively Drug-Resistant Acinetobacter baumannii in a Tertiary Hospital from Brazil: The Importance of Carbapenemase Encoding Genes and Epidemic Clonal Complexes in a 10-Year Study
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