Auflistung nach Autor "Zarkotou, O."
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A Combined Disk Test for Direct Differentiation of Carbapenemase-Producing Enterobacteriaceae in Surveillance Rectal Swabs
Pournaras, S.; Zarkotou, O.; Poulou, A.; Kristo, I.; Vrioni, G.; Themeli-Digalaki, K.; Tsakris, A. (2013)Carbapenemase-producing Enterobacteriaceae (CPE) are rapidly spreading worldwide. Early detection of fecal CPE carriers is essential for effective infection control. Here, we evaluated the performance of a meropenem combined ... -
Comparative evaluation of colistin susceptibility testing methods among carbapenem-nonsusceptible Klebsiella pneumoniae and Acinetobacter baumannii clinical isolates
Dafopoulou, K.; Zarkotou, O.; Dimitroulia, E.; Hadjichristodoulou, C.; Gennimata, V.; Pournaras, S.; Tsakris, A. (2015)We compared six colistin susceptibility testing (ST) methods on 61 carbapenem-nonsusceptible Klebsiella pneumoniae (n = 41) and Acinetobacter baumannii (n = 20) clinical isolates with provisionally elevated colistin MICs ... -
Comparative Evaluation of Tigecycline Susceptibility Testing Methods for Expanded-Spectrum Cephalosporin- and Carbapenem-Resistant Gram-Negative Pathogens
Zarkotou, O.; Pournaras, S.; Altouvas, G.; Pitiriga, V.; Tziraki, M.; Mamali, V.; Themeli-Digalaki, K.; Tsakris, A. (2012)We evaluated the Vitek2, Etest, and MIC Test Strip (MTS) methods of tigecycline susceptibility testing with 241 expanded-spectrum cephalosporin-resistant and/or carbapenem-resistant Enterobacteriaceae and Acinetobacter ... -
Linezolid Dependence in Staphylococcus epidermidis Bloodstream Isolates
Pournaras, S.; Ntokou, E.; Zarkotou, O.; Ranellou, K.; Themeli-Digalaki, K.; Stathopoulos, C.; Tsakris, A. (2013)We document linezolid dependence among 5 highly linezolid-resistant (LRSE) Staphylococcus epidermidis bloodstream isolates that grew substantially faster at 32 mu g/mL linezolid presence. These isolates carried the mutations ... -
Predictors of mortality in patients with bloodstream infections caused by KPC-producing Klebsiella pneumoniae and impact of appropriate antimicrobial treatment
Zarkotou, O.; Pournaras, S.; Tselioti, P.; Dragoumanos, V.; Pitiriga, V.; Ranellou, K.; Prekates, A.; Themeli-Digalaki, K.; Tsakris, A. (2011)Bloodstream infections (BSIs) caused by Klebsiella pneumoniae carbapenemases (KPC)-producing K. pneumoniae (KPC-KP) are associated with high mortality rates. We investigated outcomes, risk factors for mortality and impact ... -
Risk Factors and Outcomes Associated with Acquisition of Colistin-Resistant KPC-Producing Klebsiella pneumoniae: a Matched Case-Control Study
Zarkotou, O.; Pournaras, S.; Voulgari, E.; Chrysos, G.; Prekates, A.; Voutsinas, D.; Themeli-Digalaki, K.; Tsakris, A. (2010)A matched 1: 3 case-control study investigated factors predicting colistin-resistant versus colistin-susceptible KPC-producing Klebsiella pneumoniae acquisition and its impact on patient outcomes. Case patients were more ... -
Susceptibility patterns to extended-spectrum cephalosporins among Enterobacteriaceae harbouring extended-spectrum beta-lactamases using the updated Clinical and Laboratory Standards Institute interpretive criteria
Kristo, I.; Pitiriga, V.; Poulou, A.; Zarkotou, O.; Kimouli, M.; Pournaras, S.; Tsakris, A. (2013)We examined the effect of applying the updated 2010 Clinical and Laboratory Standards Institute (CLSI) susceptibility breakpoints for extended-spectrum cephalosporins (ESCs) to detect extended-spectrum beta-lactamase ... -
Wide dissemination of linezolid-resistant Staphylococcus epidermidis in Greece is associated with a linezolid-dependent ST22 clone
Karavasilis, V.; Zarkotou, O.; Panopoulou, M.; Kachrimanidou, M.; Themeli-Digalaki, K.; Stylianakis, A.; Gennimata, V.; Ntokou, E.; Stathopoulos, C.; Tsakris, A.; Pournaras, S.; Greek Study Grp Staphylococcal, Lin (2015)Objectives: Dependence on linezolid was recently described as significant growth acceleration of linezolid-resistant Staphylococcus epidermidis (LRSE) isolates upon linezolid exposure. We investigated the possible contribution ...