Anastasia Izampella Papathanasiou

Ms. Anastasia Izampella Papathanasiou


Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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7 February 2025 in Pathogens
Verified
Journal Article
Open access
PDF file
Athina PyrpasopoulouAthina Pyrpasopoulou
Athina Pyrpasopoulou
CZCharalampos Zarras
Charalampos Zarras
EMEleni K. Mouloudi
Eleni K. Mouloudi
GVGeorgios Vakalis
Georgios Vakalis
AFArgiro Ftergioti
Argiro Ftergioti
Emmanuel RoilidesEmmanuel Roilides
Emmanuel Roilides
Introduction: The epidemiology of candidemia has shifted in the past few decades; drug-resistant non-albicans Candida species have become more prevalent worldwide. The aim of this retrospective study was to determine the epidemiology of Candida species isolated from hospitalized neonates, children and adults, and to investigate a potential changing susceptibility pattern in a large general tertiary hospital. Methods: All unique Candida strains isolated from candidemia cases between 1 January 2020 and 15 October 2024 were identified, and their susceptibility profile was characterized. The distribution pattern in different ward types (medical, surgical, pediatric and ICU) was recorded. Cumulative annual susceptibility profiles were compared. Results: Candidemia incidence increased during the COVID-19 pandemic, from 0.63/1000 patient-days in 2020 to 0.96/1000 patient-days in 2022, and has since slightly decreased (0.83 and 0.89 in 2023 and 2024, respectively). Candidemia-associated mortality was high (>50%) in 2020 and peaked during the pandemic. During the study period, Candida parapsilosis remained the most frequent Candida spp. However, since the first isolation of Candida auris from the bloodstream in late 2022, and despite intense infection control measures taken, its frequency sharply climbed to the second position after only C. parapsilosis in the first 10 months of 2024 (33.6% vs. 25.2% for C. parapsilosis and 21.0% for C. albicans). While C. albicans has remained highly susceptible to fluconazole (1% resistance rate), C. parapsilosis manifested significant resistance to fluconazole during 2022–2024 (52%). C. auris was universally resistant to azoles and one isolate also resistant to echinocandins. Conclusions: A high prevalence of azole resistance of C. parapsilosis, the most frequently isolated Candida species, persists, and a significant rise of C. auris was recorded in nosocomial bloodstream infections with severe implications on public health.

12 January 2026 in Pathogens
Verified
Journal Article
Open access
PDF file
AGAnastasia Geladari
Anastasia Geladari
DKDimitrios Kouroupis
Dimitrios Kouroupis
KVKyriaki Vafeidou Kyriaki Vafeidou
Kyriaki Vafeidou Kyriaki Vafeidou
Vasileios LiakosVasileios Liakos
Vasileios Liakos
MMMaria Magoudi
Maria Magoudi
Athina PyrpasopoulouAthina Pyrpasopoulou
Athina Pyrpasopoulou
Acinetobacter baumannii has been characterized by CDC, WHO and most National Healthcare Systems worldwide as a critical nosocomial pathogen, and classified as an ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, Enterobacter spp.) pathogen. Mortality of invasive infections due to A. baumannii exceeds 40%. To highlight its impact on public health, ECDC has organized a special project on national lab co-ordination to accurately detect and report carbapenem-resistant strains, to identify epidemiological factors for infection (or colonization) with carbapenem-resistant A. baumanii at clonal and sub-genomic level. This review aims to describe the history, epidemiology, and evolution of resistance of A. baumannii, and stress the caveats associated with the management of systemic infections. Available active antimicrobials and drugs in the pipeline are listed, and available clinical evidence on their pharmacokinetics and efficacy in various types of infections are described. Clinician’s choice of treatment (drug, and monotherapy vs. combination treatment) depends on the patients’ profile, site of infection and antimicrobial resistance profile. Emphasis is laid on specific patient subpopulations, whose management is discussed.

7 October 2026 in Pathogens
Verified
Journal Article
Open access
PDF file
DKDimitrios Kouroupis
Dimitrios Kouroupis
APAnastasia Izampella Papathanasiou
Anastasia Izampella Papathanasiou
KBKonstantinos Bourtzinakos
Konstantinos Bourtzinakos
MSMaria Sentona
Maria Sentona
MKMagdalini Kolaza
Magdalini Kolaza
Athina PyrpasopoulouAthina Pyrpasopoulou
Athina Pyrpasopoulou
Candidozyma auris, recently taxonomically reclassified, represents an emerging multidrug-resistant fungal pathogen that has evolved into a critical nosocomial and global public health threat. This organism exhibits a profound capacity for resilient biofilm formation on biotic and abiotic surfaces, leading to severe systemic infections with highly constrained therapeutic options. This report describes a rare, highly challenging case of a C. auris-associated prosthetic joint infection (PJI) in a diabetic patient, representing the 5th analogous documented case (and the 17th osteoarticular infection overall) in the medical literature. The clinical course was characterized by an initial failure to respond to standard echinocandin monotherapy, necessitating the escalation to a synergistic combination regimen. Although temporary microbiological and clinical clearance was achieved, the patient ultimately succumbed to multi-organ failure secondary to a subsequent Gram-negative septic outbreak. Fungal PJIs remain rare clinical entities associated with extreme morbidity and treatment failure. This systematic review emphasizes the crucial need for enhanced infection control strategies and specialized therapeutic protocols as C. auris infections continue to rise within everyday clinical environments.