O
Olympia Zarkotou
Researcher at National and Kapodistrian University of Athens
Publications - 29
Citations - 1104
Olympia Zarkotou is an academic researcher from National and Kapodistrian University of Athens. The author has contributed to research in topics: Colistin & Klebsiella pneumoniae. The author has an hindex of 13, co-authored 24 publications receiving 939 citations.
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Journal ArticleDOI
Linezolid dependence in Staphylococcus epidermidis bloodstream isolates.
Spyros Pournaras,Eleni Ntokou,Olympia Zarkotou,Kyriaki Ranellou,Katerina Themeli-Digalaki,Constantinos Stathopoulos,Athanassios Tsakris +6 more
TL;DR: Linezolid dependence could account for increasing LRSE emergence and is documented among 5 highly linezolid-resistant (LRSE) Staphylococcus epidermidis bloodstream isolates that grew substantially faster at 32 µg/mL lineZolid presence.
Journal ArticleDOI
Wide dissemination of linezolid-resistant Staphylococcus epidermidis in Greece is associated with a linezolid-dependent ST22 clone
Vasilios Karavasilis,Olympia Zarkotou,Maria Panopoulou,Melina Kachrimanidou,Katerina Themeli-Digalaki,Antonios Stylianakis,Vassiliki Gennimata,Eleni Ntokou,Constantinos Stathopoulos,Athanasios Tsakris,Spyros Pournaras +10 more
TL;DR: The observation that most LRSE belonged to ST22 and expressed dependence on linezolid clearly implies that the spread of lineZolid resistance should have been driven by this trait, which provided the LRSE with a selective advantage underlinezolid pressure.
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Susceptibility patterns to extended-spectrum cephalosporins among Enterobacteriaceae harbouring extended-spectrum β-lactamases using the updated Clinical and Laboratory Standards Institute interpretive criteria
Ioulia Kristo,Vassiliki Pitiriga,Aggeliki Poulou,Olympia Zarkotou,Maria Kimouli,Spyros Pournaras,Athanassios Tsakris +6 more
TL;DR: By implementation of the new 2010 CLSI breakpoints, a considerable proportion of ESBL-possessing Enterobacteriaceae would be reported as susceptible, mostly to ceftazidime and cefepime, leading to possible infection control and therapeutic implications.
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Infection control interventions affected by resource shortages: impact on the incidence of bacteremias caused by carbapenem-resistant pathogens.
E. Kousouli,Olympia Zarkotou,Lida Politi,K. Polimeri,Georgia Vrioni,Katerina Themeli-Digalaki,Athanasios Tsakris,Spyridon Pournaras +7 more
TL;DR: The implementation of IC interventions reduced the BSI incidence rates, particularly for ICU patients, however, factors possibly related to the restrictions of human and material resources apparently contributed to the observed expansion of BSI in the authors' endemic setting.
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Whole-genome typing and characterization of blaVIM19-harbouring ST383 Klebsiella pneumoniae by PFGE, whole-genome mapping and WGS
Julia Sabirova,Basil Britto Xavier,Jasmine Coppens,Olympia Zarkotou,Christine Lammens,Lore Janssens,Ronald Burggrave,Trevor Wagner,Herman Goossens,Surbhi Malhotra-Kumar +9 more
TL;DR: This study demonstrates the application of WGM to understanding the epidemiology of hospital-associated K. pneumoniae and presents the first longitudinal genomic characterization of the highly dynamic carbapenem-resistant ST383 K.neumoniae clone that is rapidly gaining importance in Europe.