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    Epidemiology and outcomes of Candida-associated osteoarticular infections: A multicentre retrospective study from Turkey
    (Oxford Univ Press, 2025) Guler, Ozlem; Uzel, Murat; Tepe, Dilsat; Aksoy, Firdevs; Cinar, Gule; Memikoglu, Kemal Osman; Durdu, Bulent
    This multicentre retrospective study investigated the epidemiology, clinical characteristics, and fluconazole resistance rates of Candida species in osteoarticular infections across Turkey as well as the factors influencing complete recovery. Data were gathered from 73 adult patients diagnosed with proven or probable Candida-associated osteoarticular infections between 2015 and 2025 from 20 healthcare centres. The most common clinical presentation was spondylodiscitis, followed by the involvement of phalangeal bones in the hands and feet. Non-albicansCandida species accounted for 37/73 cases (50.7%), with Candida parapsilosis being the most frequent. Fluconazole resistance was low among C. albicans isolates (3%) but higher among non-albicans yeasts (27%). Bacterial co-infection, predominantly Gram-positive bacteria, was detected in 52.1% of cases. Diabetes was present in 50/73 patients (68.5%), particularly insulin-dependent diabetes, and was a prominent comorbidity that may have also contributed as a predisposing factor. Radiological detection of osteomyelitis was achieved in 69.9% of patients. Fluconazole was the most commonly used antifungal agent (74%) with a median treatment duration of 90 days. Multivariate analysis revealed that surgical debridement was significantly associated with a higher odds of clinical recovery (adjusted odds ratio [aOR], 5.764; 95% confidence interval [CI], 1.360-24.434; P = .017), whereas diabetes mellitus was significantly associated with a lower odds of total recovery (aOR, 0.205; 95% CI, 0.053-0.792; P = .022). In conclusion, this multicentre study provides epidemiological data and fluconazole resistance rates of Candida species causing osteoarticular infections in Turkey, highlights the occurrence of C. auris in this cohort, and identifies surgical intervention and diabetes mellitus as factors significantly associated with recovery. This study analysed bone and joint infections with the yeast Candida from multiple Turkish hospitals over 10 years. Non-Candida albicans species were the most common (50.7%). The spine bones and discs were mostly affected. Diabetes was a key risk factor. Treatment generally lasted around 90 days.
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    Epidemiology and risk factors of 28-day mortality of hospital-acquired bloodstream infection in Turkish intensive care units: a prospective observational cohort study
    (Oxford Univ Press, 2023) Aslan, Abdullah Tarik; Tabah, Alexis; Koylu, Bahadir; Kalem, Ayse Kaya; Aksoy, Firdevs; Erol, Cigdem; Karaali, Ridvan
    Synopsis Objectives To uncover clinical epidemiology, microbiological characteristics and outcome determinants of hospital-acquired bloodstream infections (HA-BSIs) in Turkish ICU patients. Methods The EUROBACT II was a prospective observational multicontinental cohort study. We performed a subanalysis of patients from 24 Turkish ICUs included in this study. Risk factors for mortality were identified using multivariable Cox frailty models. Results Of 547 patients, 58.7% were male with a median [IQR] age of 68 [55-78]. Most frequent sources of HA-BSIs were intravascular catheter [182, (33.3%)] and lower respiratory tract [175, (32.0%)]. Among isolated pathogens (n = 599), 67.1% were Gram-negative, 21.5% Gram-positive and 11.2% due to fungi. Carbapenem resistance was present in 90.4% of Acinetobacter spp., 53.1% of Klebsiella spp. and 48.8% of Pseudomonas spp. In monobacterial Gram-negative HA-BSIs (n = 329), SOFA score (aHR 1.20, 95% CI 1.14-1.27), carbapenem resistance (aHR 2.46, 95% CI 1.58-3.84), previous myocardial infarction (aHR 1.86, 95% CI 1.12-3.08), COVID-19 admission diagnosis (aHR 2.95, 95% CI 1.25-6.95) and not achieving source control (aHR 2.02, 95% CI 1.15-3.54) were associated with mortality. However, availability of clinical pharmacists (aHR 0.23, 95% CI 0.06-0.90) and source control (aHR 0.46, 95% CI 0.28-0.77) were associated with survival. In monobacterial Gram-positive HA-BSIs (n = 93), SOFA score (aHR 1.29, 95% CI 1.17-1.43) and age (aHR 1.05, 95% CI 1.03-1.08) were associated with mortality, whereas source control (aHR 0.41, 95% CI 0.20-0.87) was associated with survival. Conclusions Considering high antimicrobial resistance rate, importance of source control and availability of clinical pharmacists, a multifaceted management programme should be adopted in Turkish ICUs.