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
Predictors of mortality in patients with bloodstream infections caused by KPC-producing Klebsiella pneumoniae and impact of appropriate antimicrobial treatment.
Olympia Zarkotou,Spyros Pournaras,P. Tselioti,V. Dragoumanos,Vassiliki Pitiriga,Kyriaki Ranellou,A. Prekates,Katerina Themeli-Digalaki,Athanassios Tsakris +8 more
TL;DR: Outcomes, risk factors for mortality and impact of appropriate antimicrobial treatment in patients with BSIs caused by molecularly confirmed KPC-KP were investigated, finding appropriate treatment is the only modifiable independent predictor of infection outcome.
Journal ArticleDOI
Risk Factors and Outcomes Associated with Acquisition of Colistin-Resistant KPC-Producing Klebsiella pneumoniae: a Matched Case-Control Study
Olympia Zarkotou,Spyros Pournaras,Evangelia Voulgari,Georgios Chrysos,Athanassios Prekates,Dionysios Voutsinas,Katerina Themeli-Digalaki,Athanassios Tsakris +7 more
TL;DR: None of these parameters independently predicted colistin resistance, which probably occurred in a susceptible KPC-KP strain that was subsequently disseminated horizontally.
Journal ArticleDOI
Comparative Evaluation of Colistin Susceptibility Testing Methods among Carbapenem-Nonsusceptible Klebsiella pneumoniae and Acinetobacter baumannii Clinical Isolates
Konstantina Dafopoulou,Konstantina Dafopoulou,Olympia Zarkotou,Evangelia Dimitroulia,Christos Hadjichristodoulou,Vasiliki Gennimata,Spyros Pournaras,Athanasios Tsakris +7 more
TL;DR: Data show that gradient diffusion methods may lead to inappropriate colistin therapy, and clinical laboratories should consider the use of automated systems, such as Vitek2, or dilution methods forcolistin ST.
Journal ArticleDOI
Outbreak of OXA-48 carbapenemase-producing Klebsiella pneumoniae in Greece involving an ST11 clone
Evangelia Voulgari,Olympia Zarkotou,Kyriaki Ranellou,Drosos E. Karageorgopoulos,Georgia Vrioni,Vasiliki Mamali,Katerina Themeli-Digalaki,Athanassios Tsakris +7 more
TL;DR: Carbenem resistance due to MBL and KPC carbapenemases is currently on an endemic scale in Greece and this report highlights the wider undetected dissemination of yet another carbapentemase in this region.
Journal ArticleDOI
Evaluation of colistin stability in agar and comparison of four methods for MIC testing of colistin
Agata Turlej-Rogacka,Basil Britto Xavier,Lore Janssens,Christine Lammens,Olympia Zarkotou,Spyros Pournaras,Herman Goossens,Surbhi Malhotra-Kumar +7 more
TL;DR: In the authors' hands, agar dilution was superior in terms of reproducibility and robustness, compared to broth dilution methods, for colistin MIC determination.