Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland

Abstract Background We describe the prevalence of invasive carbapenem-resistant Acinetobacter spp. isolated from 2005 to 2016 in different regions of Switzerland. Methods Using the Swiss Antibiotic Resistance Centre (anresis) database that includes data from 70% of all hospitalized patients and one...

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Main Authors: A. Ramette, A. Kronenberg, and the Swiss Centre for Antibiotic Resistance (ANRESIS)
Format: Article
Language:English
Published: BMC 2018-04-01
Series:BMC Infectious Diseases
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12879-018-3061-5
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author A. Ramette
A. Kronenberg
and the Swiss Centre for Antibiotic Resistance (ANRESIS)
author_facet A. Ramette
A. Kronenberg
and the Swiss Centre for Antibiotic Resistance (ANRESIS)
author_sort A. Ramette
collection DOAJ
description Abstract Background We describe the prevalence of invasive carbapenem-resistant Acinetobacter spp. isolated from 2005 to 2016 in different regions of Switzerland. Methods Using the Swiss Antibiotic Resistance Centre (anresis) database that includes data from 70% of all hospitalized patients and one third of all ambulatory practitioners in Switzerland, we analysed the number of carbapenem-susceptible and resistant Acinetobacter spp. isolated from blood or cerebrospinal fluid, and further described their temporal and regional fluctuations. Results From 2005 to 2016, 58 cases of resistant or intermediate strains to carbapenem were observed among 632 cases of invasive Acinetobacter. Multivariable analyses indicated that the number of carbapenem-resistant isolates (mean 4.8 ± sd 2.12) and carbapenem resistance rates per region per annum (8.4% ± 13.9%) were low and stable over the studied period. Large fluctuations were observed at the regional level, with e.g. the North East region displaying resistance rates twice as high as that found in other regions. Conclusion Despite a relatively stable number of carbapenem-resistant Acinetobacter isolates in Switzerland, our results suggest the existence of a diverse pool of A. baumannii species in hospital settings, and confirm the implication of carbapenem-resistant Acinetobacter calcoaceticus-Acinetobacter baumannii (ACB) complex in the vast majority of clinical infections and nosocomial outbreaks with notable regional fluctuations.
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spelling doaj.art-87e546d29a604e12a4181431be07e64b2022-12-21T23:58:10ZengBMCBMC Infectious Diseases1471-23342018-04-011811610.1186/s12879-018-3061-5Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in SwitzerlandA. Ramette0A. Kronenberg1and the Swiss Centre for Antibiotic Resistance (ANRESIS)Institute for Infectious Diseases, University of BernInstitute for Infectious Diseases, University of BernAbstract Background We describe the prevalence of invasive carbapenem-resistant Acinetobacter spp. isolated from 2005 to 2016 in different regions of Switzerland. Methods Using the Swiss Antibiotic Resistance Centre (anresis) database that includes data from 70% of all hospitalized patients and one third of all ambulatory practitioners in Switzerland, we analysed the number of carbapenem-susceptible and resistant Acinetobacter spp. isolated from blood or cerebrospinal fluid, and further described their temporal and regional fluctuations. Results From 2005 to 2016, 58 cases of resistant or intermediate strains to carbapenem were observed among 632 cases of invasive Acinetobacter. Multivariable analyses indicated that the number of carbapenem-resistant isolates (mean 4.8 ± sd 2.12) and carbapenem resistance rates per region per annum (8.4% ± 13.9%) were low and stable over the studied period. Large fluctuations were observed at the regional level, with e.g. the North East region displaying resistance rates twice as high as that found in other regions. Conclusion Despite a relatively stable number of carbapenem-resistant Acinetobacter isolates in Switzerland, our results suggest the existence of a diverse pool of A. baumannii species in hospital settings, and confirm the implication of carbapenem-resistant Acinetobacter calcoaceticus-Acinetobacter baumannii (ACB) complex in the vast majority of clinical infections and nosocomial outbreaks with notable regional fluctuations.http://link.springer.com/article/10.1186/s12879-018-3061-5Carbapenem resistanceAcinetobacter baumannii complexSurveillanceEpidemiologyTemporal trendsRegional trends
spellingShingle A. Ramette
A. Kronenberg
and the Swiss Centre for Antibiotic Resistance (ANRESIS)
Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
BMC Infectious Diseases
Carbapenem resistance
Acinetobacter baumannii complex
Surveillance
Epidemiology
Temporal trends
Regional trends
title Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
title_full Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
title_fullStr Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
title_full_unstemmed Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
title_short Prevalence of carbapenem-resistant Acinetobacter baumannii from 2005 to 2016 in Switzerland
title_sort prevalence of carbapenem resistant acinetobacter baumannii from 2005 to 2016 in switzerland
topic Carbapenem resistance
Acinetobacter baumannii complex
Surveillance
Epidemiology
Temporal trends
Regional trends
url http://link.springer.com/article/10.1186/s12879-018-3061-5
work_keys_str_mv AT aramette prevalenceofcarbapenemresistantacinetobacterbaumanniifrom2005to2016inswitzerland
AT akronenberg prevalenceofcarbapenemresistantacinetobacterbaumanniifrom2005to2016inswitzerland
AT andtheswisscentreforantibioticresistanceanresis prevalenceofcarbapenemresistantacinetobacterbaumanniifrom2005to2016inswitzerland