Epidemiology, clinical characteristics, outcome and biofilm forming properties in candidaemia : A single‐centre retrospective 4‐year analysis from Hungary

Kovács, Fruzsina and Balla, Noémi and Bozó, Aliz and Harmath, Andrea and Jakab, Ágnes and Tóth, Zoltán and Nagy, Fruzsina and Majoros, László and Kovács, Renátó (2024) Epidemiology, clinical characteristics, outcome and biofilm forming properties in candidaemia : A single‐centre retrospective 4‐year analysis from Hungary. MYCOSES, 67 (4). ISSN 0933-7407 (In Press)

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Abstract

Background: Candidaemia is a life-threatening disease that is associated with high mortality, especially in intensive care units (ICUs). The number of comprehensive studies dealing with the epidemiologic characteristics of biofilm-related properties is limited. Objective: This study evaluated the clinical characteristics of candidaemia, to assess the biofilm-forming properties of isolates, and to identify the risk factors of mortality. Patients and Methods: A total of 149 candidaemia episodes from the University of Debrecen, Clinical Centre, between January 2020 and December 2023 were investigated retrospectively. The susceptibility of Candida isolates to fluconazole, amphotericin B, anidulafungin, caspofungin, and micafungin was evaluated and compared to the susceptibility of 1-day-old biofilms. Multivariate logistic regression analysis was applied to identify the independent predictors of 30-day mortality rate. Results: The most common Candida species was Candida albicans (41%), followed by C. parapsilosis (20%), C. glabrata (14%), C. tropicalis (13%), rare Candida species (7%), and C. krusei (5%). Sixty-six percent of Candida isolates were biofilm formers and 44% had high metabolic activity. The 30-day mortality rate was 52%, which was higher in ICUs (65%). The logistic regression analysis revealed several factors significantly influencing mortality including ICU admission (odds ratio [OR] 2.99, 95% confidence interval [CI] 1.17–8.04, p= 0.025), fluconazole treatment (OR 4.12, 95% CI 1.62–11.42, p= .004), and pneumonia (OR 0.261, 95% CI 0.1–0.67, p= .006). Conclusions: This comprehensive analysis supports the better characterisation of candidaemia in healthcare settings, which ultimately may reduce mortality among patients

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