FIRDEVS AKSOY

@ktu.edu.tr

Karadeniz Technical University Medical Faculty
Department of Infectious Diseases and Clinical Microbiology



              

https://researchid.co/faslanaksoy

RESEARCH INTERESTS

Infectious Diseases and Clinical Microbiology
HIV
nosocomial infection
viral hemorhagic fever

27

Scopus Publications

Scopus Publications

  • Epidemiology and risk factors of 28-day mortality of hospital-acquired bloodstream infection in Turkish intensive care units: a prospective observational cohort study
    Abdullah Tarık Aslan, Alexis Tabah, Bahadır Köylü, Ayşe Kaya Kalem, Firdevs Aksoy, Çiğdem Erol, Rıdvan Karaali, Burcu Tunay, Seda Guzeldağ, Ayşe Batirel,et al.

    Oxford University Press (OUP)
    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.

  • Epidemiology and outcomes of hospital-acquired bloodstream infections in intensive care unit patients: the EUROBACT-2 international cohort study
    Alexis Tabah, Niccolò Buetti, Quentin Staiquly, Stéphane Ruckly, Murat Akova, Abdullah Tarik Aslan, Marc Leone, Andrew Conway Morris, Matteo Bassetti, Kostoula Arvaniti,et al.

    Springer Science and Business Media LLC

  • Fungemia due to Rare Yeasts Other Than Candida: 10 Years of Single-center Experience
    Dilsat Tepe, Firdevs Aksoy, Gurdal Yılmaz, Ilknur Tosun, Esra Ozkaya, and Selcuk Kaya

    Galenos Yayinevi

  • Different epidemiology of bloodstream infections in COVID-19 compared to non-COVID-19 critically ill patients: a descriptive analysis of the Eurobact II study
    Niccolò Buetti, Alexis Tabah, Ambre Loiodice, Stéphane Ruckly, Abdullah Tarik Aslan, Giorgia Montrucchio, Andrea Cortegiani, Nese Saltoglu, Bircan Kayaaslan, Firdevs Aksoy,et al.

    Springer Science and Business Media LLC
    Abstract Background The study aimed to describe the epidemiology and outcomes of hospital-acquired bloodstream infections (HABSIs) between COVID-19 and non-COVID-19 critically ill patients. Methods We used data from the Eurobact II study, a prospective observational multicontinental cohort study on HABSI treated in ICU. For the current analysis, we selected centers that included both COVID-19 and non-COVID-19 critically ill patients. We performed descriptive statistics between COVID-19 and non-COVID-19 in terms of patients’ characteristics, source of infection and microorganism distribution. We studied the association between COVID-19 status and mortality using multivariable fragility Cox models. Results A total of 53 centers from 19 countries over the 5 continents were eligible. Overall, 829 patients (median age 65 years [IQR 55; 74]; male, n = 538 [64.9%]) were treated for a HABSI. Included patients comprised 252 (30.4%) COVID-19 and 577 (69.6%) non-COVID-19 patients. The time interval between hospital admission and HABSI was similar between both groups. Respiratory sources (40.1 vs. 26.0%, p < 0.0001) and primary HABSI (25.4% vs. 17.2%, p = 0.006) were more frequent in COVID-19 patients. COVID-19 patients had more often enterococcal (20.5% vs. 9%) and Acinetobacter spp. (18.8% vs. 13.6%) HABSIs. Bacteremic COVID-19 patients had an increased mortality hazard ratio (HR) versus non-COVID-19 patients (HR 1.91, 95% CI 1.49–2.45). Conclusions We showed that the epidemiology of HABSI differed between COVID-19 and non-COVID-19 patients. Enterococcal HABSI predominated in COVID-19 patients. COVID-19 patients with HABSI had elevated risk of mortality. Trial registration ClinicalTrials.org number NCT03937245. Registered 3 May 2019.

  • Efficacy and safety of an inactivated whole-virion SARS-CoV-2 vaccine (CoronaVac): interim results of a double-blind, randomised, placebo-controlled, phase 3 trial in Turkey
    Mine Durusu Tanriover, Hamdi Levent Doğanay, Murat Akova, Hatice Rahmet Güner, Alpay Azap, Sıla Akhan, Şükran Köse, Fatma Şebnem Erdinç, Emin Halis Akalın, Ömer Fehmi Tabak,et al.

    Elsevier BV
    Background CoronaVac, an inactivated whole-virion SARS-CoV-2 vaccine, has been shown to be well tolerated with a good safety profile in individuals aged 18 years and older in phase 1/2 trials, and provided a good humoral response against SARS-CoV-2. We present the interim efficacy and safety results of a phase 3 clinical trial of CoronaVac in Turkey. Methods This was a double-blind, randomised, placebo-controlled phase 3 trial. Volunteers aged 18–59 years with no history of COVID-19 and with negative PCR and antibody test results for SARS-CoV-2 were enrolled at 24 centres in Turkey. Exclusion criteria included (but were not limited to) immunosuppressive therapy (including steroids) within the past 6 months, bleeding disorders, asplenia, and receipt of any blood products or immunoglobulins within the past 3 months. The K1 cohort consisted of health-care workers (randomised in a 1:1 ratio), and individuals other than health-care workers were also recruited into the K2 cohort (randomised in a 2:1 ratio) using an interactive web response system. The study vaccine was 3 μg inactivated SARS-CoV-2 virion adsorbed to aluminium hydroxide in a 0·5 mL aqueous suspension. Participants received either vaccine or placebo (consisting of all vaccine components except inactivated virus) intramuscularly on days 0 and 14. The primary efficacy outcome was the prevention of PCR-confirmed symptomatic COVID-19 at least 14 days after the second dose in the per protocol population. Safety analyses were done in the intention-to-treat population. This study is registered with ClinicalTrials.gov (NCT04582344) and is active but no longer recruiting. Findings Among 11 303 volunteers screened between Sept 14, 2020, and Jan 5, 2021, 10 218 were randomly allocated. After exclusion of four participants from the vaccine group because of protocol deviations, the intention-to-treat group consisted of 10 214 participants (6646 [65·1%] in the vaccine group and 3568 [34·9%] in the placebo group) and the per protocol group consisted of 10 029 participants (6559 [65·4%] and 3470 [34·6%]) who received two doses of vaccine or placebo. During a median follow-up period of 43 days (IQR 36–48), nine cases of PCR-confirmed symptomatic COVID-19 were reported in the vaccine group (31·7 cases [14·6–59·3] per 1000 person-years) and 32 cases were reported in the placebo group (192·3 cases [135·7–261·1] per 1000 person-years) 14 days or more after the second dose, yielding a vaccine efficacy of 83·5% (95% CI 65·4–92·1; p<0·0001). The frequencies of any adverse events were 1259 (18·9%) in the vaccine group and 603 (16·9%) in the placebo group (p=0·0108) with no fatalities or grade 4 adverse events. The most common systemic adverse event was fatigue (546 [8·2%] participants in the vaccine group and 248 [7·0%] the placebo group, p=0·0228). Injection-site pain was the most frequent local adverse event (157 [2·4%] in the vaccine group and 40 [1·1%] in the placebo group, p<0·0001). Interpretation CoronaVac has high efficacy against PCR-confirmed symptomatic COVID-19 with a good safety and tolerability profile. Funding Turkish Health Institutes Association.

  • The role of pneumococcal pneumonia among community-acquired pneumonia in adult turkish population: Turkcap study
    Esin Senol, , Aykut Cilli, Hakan Gunen, Alper Sener, Ridvan Dumlu, Ayse Odemis, Ayse Fusun Topcu, Yesim Yildiz, Rahmet Guner,et al.

    AVES Publishing Co.

  • The “MICE” scoring system in differentiating the identical twins leptospirosis and hantavirus infection
    Selçuk Kaya, Gürdal Yılmaz, Murat Aydın, Firdevs Aksoy, and Iftihar Koksal

    Springer Science and Business Media LLC
    Purpose To develop a practical scoring system to assist clinicians in differentiating leptospirosis and hantavirus infections, whose epidemiological, clinical, and laboratory characteristics are literally like identical twins. Methods The study population consisted of 162 patients admitted to hospital with a confirmed diagnosis of leptospirosis (LG group, n  = 92) and hantavirus infections (HG, group = 70) between January 2000 and January 2019. The two groups were compared in terms of demographic, clinical and laboratory features. Sensitivity, specificity, and positive and negative predictive values were determined from ROC analysis for findings of significance in the diagnosis of leptospirosis, and a scoring system for diagnosis was developed (“MICE” score). During the development of this scoring system, we were careful to employ parameters that would not affect one another statistically, to reflect the involvement of very different systems (such as the hematological, hepatic, renal, and musculoskeletal systems) due to the multisystemic effect of the disease in the organism, and to ensure that the system should be simple to apply and understand. Accordingly, five parameters, serum WBC, creatinine, creatine kinase, total bilirubin, and C-reactive protein, were employed in the “MICE” scoring system. Results Three cut-off values were determined using ROC analysis for the five parameters included in the MICE system. Accordingly, scores of 0, 1, or 2 were given based on the values WBC (/μL): ≤ 7500, 7500–15,000, and > 15,000; total bilirubin (mg/dL): ≤ 3, 3–10, and > 10; CRP (mg/dL): ≤ 5, 5–15, and > 15; creatinine (mg/dL): ≤ 1.5, 1.5–3, and > 3; CK (U/L): ≤ 500, 500–1000, > 1000. AUC was calculated as 0.964 at ROC analysis, while the most noteworthy cut-off point was obtained when MICE score was ≥ 3, exhibiting 93.5% sensitivity, 92.9% specificity, PPV 94.5% and NPV 91.5%. A test score ≥ 3 was regarded as positive. In addition, our patients were evaluated using other current scoring systems in addition to “MICE,” and our scoring system exhibited a greater diagnostic power in our subjects. Conclusions Leptospirosis and hantavirus infections can be accurately predicted by the MICE scoring system. Early diagnosis and rational treatment will also help to lower the mortality rates in these diseases.

  • Gastrointestinal and cutaneous anthrax: Case series
    Vildan Ozer, Mucahit Gunaydin, Sinan Pasli, Firdevs Aksoy, and Abdulkadir Gunduz

    Medknow
    Introduction Anthrax is a zoonosis affecting herbivorous animals. Its agent is Bacillus anthracis and it is gram positive, aerobic or facultative anaerobic, immobile and has a capsule in the polypeptide structure. The incidence is gradually decreasing in the world and in our country. The disease is especially seen in areas where stock breeding is common. In this case series, 3 cases, one of them was mortal, took place after anthrax infected cow was eaten in February 2018 in Trabzon was shared. Case presentations In the first case, as a result of the animal's meat was eaten, gastrointestinal anthrax and associated sepsis were seen. This patient's blood culture was positive and she was died. Second case after contacting the patient who died, and third case after contacting the animal and eating its meat, diagnosed with cutaneous anthrax. Doxycycline treatment was started with cutaneous anthrax patients, these cases were recovered without any complications. Conclusion We presented this article, to update our information about gastrointestinal anthrax and other anthrax types which are become a current issue again especially due to bioterrorism and also to keep it in mind in the differential diagnosis although it is rarely seen in our stock raising areas.

  • A case of intestinal tuberculosis mimicking Crohn’s disease and Behçet’s disease
    Murat AYDIN, Selcuk KAYA, Firdevs AKSOY, Ismail SAYGIN, and İftihar KÖKSAL

    Galenos Yayinevi

  • Osteoarticular candida infection: Report of three cases and literature review of 44 patients
    Firdevs Aksoy, Nurten Aydın, Çakır Ertuğrul, Koçak Mustafa, Oğuz Şükrü, Ozkaya Esra, Tosun Ilknur, Yılmaz Gürdal, and Köksal İftihar

    Galenos Yayinevi

  • Development and validation of a modified quick SOFA scale for risk assessment in sepsis syndrome
    Yasemin Cag, Oguz Karabay, Oguz Resat Sipahi, Firdevs Aksoy, Gul Durmus, Ayse Batirel, Oznur Ak, Zeliha Kocak-Tufan, Aynur Atilla, Nihal Piskin,et al.

    Public Library of Science (PLoS)
    Sepsis is a severe clinical syndrome owing to its high mortality. Quick Sequential Organ Failure Assessment (qSOFA) score has been proposed for the prediction of fatal outcomes in sepsis syndrome in emergency departments. Due to the low predictive performance of the qSOFA score, we propose a modification to the score by adding age. We conducted a multicenter, retrospective cohort study among regional referral centers from various regions of the country. Participants recruited data of patients admitted to emergency departments and obtained a diagnosis of sepsis syndrome. Crude in-hospital mortality was the primary endpoint. A generalized mixed-effects model with random intercepts produced estimates for adverse outcomes. Model-based recursive partitioning demonstrated the effects and thresholds of significant covariates. Scores were internally validated. The H measure compared performances of scores. A total of 580 patients from 22 centers were included for further analysis. Stages of sepsis, age, time to antibiotics, and administration of carbapenem for empirical treatment were entered the final model. Among these, severe sepsis (OR, 4.40; CIs, 2.35–8.21), septic shock (OR, 8.78; CIs, 4.37–17.66), age (OR, 1.03; CIs, 1.02–1.05) and time to antibiotics (OR, 1.05; CIs, 1.01–1.10) were significantly associated with fatal outcomes. A decision tree demonstrated the thresholds for age. We modified the quick Sequential Organ Failure Assessment (mod-qSOFA) score by adding age (> 50 years old = one point) and compared this to the conventional score. H-measures for qSOFA and mod-qSOFA were found to be 0.11 and 0.14, respectively, whereas AUCs of both scores were 0.64. We propose the use of the modified qSOFA score for early risk assessment among sepsis patients for improved triage and management of this fatal syndrome.


  • Carbonic anhydrase I–II autoantibodies and oxidative status in long-term follow-up of patients with Crimean–Congo haemorrhagic fever
    Hülya Yilmaz, Uğur Kostakoğlu, Selim Demir, Firdevs Aksoy, Ahmet Menteşe, Süleyman Caner Karahan, İftihar Köksal, Ahmet Alver, and Gürdal Yilmaz

    Informa UK Limited
    Abstract Context: Crimean–Congo haemorrhagic fever (CCHF) is a life-threatening acute febrile haemorrhagic disease. Objective: This study was to measure levels of the oxidative stress biomarkers malondialdehyde (MDA), total oxidant status (TOS), total antioxidant status (TAS) and oxidative stress index (OSI) and of CA I–II autoantibodies as biomarkers for autoimmunity and course of disease in patients with CCHF. Methods: Seventy CCHF patients and 39 healthy control volunteers were included in the study. Results: Serum MDA and TAS levels were significantly higher (p < .0001) and serum TOS and OSI levels were significantly lower (p < .0001) in both the acute period and at 6th-month follow-up in the CCHF patients compared to the healthy volunteers. CA II levels were significantly higher in the acute period compared to the healthy volunteers (p < .005) and were significantly lower at 6th-month follow-up (p < .05). Conclusion: Serum MDA and CA II autoantibodies appear to reflect oxidative stress status and disease progression in CCHF and may be used as biomarkers for oxidative stress and disease progression.

  • Tetanus in adults: results of the multicenter ID-IRI study
    S. Tosun, A. Batirel, A. I. Oluk, F. Aksoy, E. Puca, F. Bénézit, S. Ural, S. Nayman-Alpat, T. Yamazhan, V. Koksaldi-Motor,et al.

    Springer Science and Business Media LLC
    Tetanus is an acute, severe infection caused by a neurotoxin secreting bacterium. Various prognostic factors affecting mortality in tetanus patients have been described in the literature. In this study, we aimed to analyze the factors affecting mortality in hospitalized tetanus patients in a large case series. This retrospective multicenter study pooled data of tetanus patients from 25 medical centers. The hospitals participating in this study were the collaborating centers of the Infectious Diseases International Research Initiative (ID-IRI). Only adult patients over the age of 15 years with tetanus were included. The diagnosis of tetanus was made by the clinicians at the participant centers. Izmir Bozyaka Education and Research Hospital’s Review Board approved the study. Prognostic factors were analyzed by using the multivariate regression analysis method. In this study, 117 adult patients with tetanus were included. Of these, 79 (67.5%) patients survived and 38 (32.5%) patients died. Most of the deaths were observed in patients >60 years of age (60.5%). Generalized type of tetanus, presence of pain at the wound area, presence of generalized spasms, leukocytosis, high alanine aminotransferase (ALT) and C-reactive protein (CRP) values on admission, and the use of equine immunoglobulins in the treatment were found to be statistically associated with mortality (p < 0.05 for all). Here, we describe the prognostic factors for mortality in tetanus. Immunization seems to be the most critical point, considering the advanced age of our patients. A combination of laboratory and clinical parameters indicates mortality. Moreover, human immunoglobulins should be preferred over equine sera to increase survival.

  • Individualized antibiotic therapy in patients with ventilator associated pneumonia
    Gürdal Yilmaz, Sedat Salyan, Firdevs Aksoy, and İftihar Köksal

    Microbiology Society
    &NA; The optimal duration of the treatment of ventilator‐associated pneumonia (VAP) is still the subject of debate. While 1 week treatment has been reported as possibly sufficient, patients generally receive antibiotic therapy for 10 to 14 days. The purpose of our study was to investigate whether length of treatment in patients with VAP can be reduced with an individualized therapeutic strategy. The study was performed prospectively with patients diagnosed with VAP in our hospital's intensive care units between 1 January and 31 December 2015. Duration of antibiotic therapy was determined with 5 day clinical evaluation according to previously established criteria. Patients were divided into two groups depending on length of treatment, short (7‐10 days) and long treatment (>10 days). Nineteen patients received 7 to 10 day antibiotic therapy, and 30 received >10 day antibiotic therapy. Demographic and clinical characteristics, Glasgow Coma Scale score, CPIS and the PaO2/FiO2 ratio at the time of diagnosis of VAP were statistically similar between the two groups (P>0.05). A second VAP attack occurred post‐treatment in three patients receiving short‐term treatment and in four receiving long‐term treatment (P=0.561). The numbers of antibiotic‐free days were 15.6±6.2 in the short‐term treatment group and 8.3±7.5 in the long‐term group (P<0.0001). One of the patients receiving short‐term treatment died within 28 days after treatment, and four of the patients receiving long‐term treatment (P=0.348) did so. The most commonly observed micro‐organisms in both groups were Acinetobacter baumannii and Pseudomonas aeruginosa. Short‐term treatment can be administered in cases with early clinical and laboratory response started on VAP treatment by considering individual characteristics and monitoring fever, CPIS, the PaO2/FiO2 ratio, C‐reactive protein and procalcitonin values.

  • The Importance of Supportive Care with Tranexamic Acid in Crimean-Congo Hemorrhagic Fever
    Selçuk Kaya, Firdevs Aksoy, Nurten Nur Kenç, Ahmet Eroğlu, and İftihar Köksal

    S. Karger AG
    This report describes a case of Crimean-Congo hemorrhagic fever with widespread hemorrhages and multiple organ dysfunction syndrome in a 46-year-old patient from an endemic region. Although the patient had numerous poor prognostic factors, he was discharged in a healthy condition after 17 days of hospitalization with close monitoring and supportive care. Tranexamic acid was successfully used together with other supportive treatments.

  • An evaluation of surgical prophylaxis procedures in turkey: A multi-center point prevalence study
    Selcuk Kaya, Seyhan Aktas, Seniha Senbayrak, Recep Tekin, Nefise Oztoprak, Firdevs Aksoy, Pinar Firat, Sevinc Yenice, Ahsen Oncul, Alper Gunduz,et al.

    AVES Publishing Co.
    OBJECTIVE The purpose of this study was to evaluate compliance with guidelines in surgical prophylaxis (SP) procedures in Turkey. MATERIALS AND METHODS A point prevalence study involving 4 university, 5 education and research and 7 public hospitals was performed assessing compliance with guidelines for antibiotic use in SP. Compliance was based on the "Clinical Practice Guidelines for Antimicrobial Surgery (CPGAS) 2013" guideline. RESULTS Sixteen centers were included in the study, with 166 operations performed at these being evaluated. Parenteral antibiotic for SP was applied in 161 (96.9%) of these. Type of antibiotic was inappropriate in 66 (40.9%) cases and duration of use in 47 (29.1%). The main antibiotics used inappropriately in SP were ceftriaxone, glycopeptides and aminoglycosides. No significant difference was observed between secondary and tertiary hospitals in terms of inappropriate selection. Duration of prophylaxis was also incompatible with guideline recommendations in approximately half of surgical procedures performed in both secondary and tertiary hospitals, however statistical significance was observed between institutions in favor of tertiary hospitals. CONCLUSION Antibiotics are to a considerable extent used in a manner incompatible with guidelines even in tertiary hospitals in Turkey. It must not be forgotten that several pre-, intra- and postoperative factors can be involved in the development of surgical site infections (SSI), and antibiotics are not the only option available for preventing these. A significant improvement can be achieved in prophylaxis with close observation, educational activities, collaboration with the surgical team and increasing compliance with guidelines. All health institutions must establish and apply their own SP consensus accompanied by the guidelines in order to achieve success in SP.

  • Cost analysis and evaluation of nosocomial infections in intensive care units
    Uğur KOSTAKOĞLU, Sedat SAYLAN, Mevlüt KARATAŞ, Serap İSKENDER, Firdevs AKSOY, and Gürdal YILMAZ

    The Scientific and Technological Research Council of Turkey
    BACKGROUND/AIM The purpose of this study was to evaluate nosocomial infections occurring in our hospital intensive care units (ICUs) and the risk factors for these, and to determine the effect of these infections on mortality and cost. MATERIALS AND METHODS This retrospective study was performed via infection control committee surveillance data, ICU records, and information processing data between 1 January and 31 December 2013 at the Kanuni Education and Research Hospital. RESULTS A total of 309 nosocomial infections were observed in 205 out of 566 patients. The density of nosocomial infections was 25.4 in 1000 patient days. Hospitalization was prolonged, and APACHE II and Charlson comorbidity scores were high in patients developing nosocomial infections (P < 0.001). Of the patients diagnosed with a nosocomial infection, 170 died. Infections were determined as the cause of death in 62 (36.5%) of the nonsurviving patients with a nosocomial infection. Acinetobacter baumannii was identified in 46 (74.2%) of the patients that died from nosocomial infections. The mean cost in patients developing a nosocomial infection was 15,229.30 Turkish lira (TL), compared to 9648.00 TL in patients without a nosocomial infection (P = 0.002). CONCLUSION Regular infection control education sessions need to be held and the number of nurses needs to be increased in order to be able to reduce this high mortality, morbidity, and cost.

  • The seroprevalance of Crimean-Congo haemorrhagic fever in people living in the same environment with Crimean-Congo haemorrhagic fever patients in an endemic region in Turkey
    I. KOKSAL, G. YILMAZ, F. AKSOY, S. ERENSOY, and H. AYDIN

    Cambridge University Press (CUP)
    SUMMARYCrimean-Congo haemorrhagic fever (CCHF) is endemic in Turkey, and since 2004 many cases have been reported from different regions of Turkey. There are limited data about the seroprevalence of the disease in household members of patients or persons sharing the same environment. We evaluated seroprevalence of CCHF in the immediate neighbourhood and in household members of patients living in the same environment as confirmed cases of CCHF in an endemic area of Turkey. A total of 625 healthy subjects [mean (s.d.) age: 42·3 (18·4) years, 58·7% females] without a past history of CCHF infection included in this case-control, retrospective study were evaluated in terms of sociodemographic characteristics, risk factors for CCHF via a study questionnaire, while serum analysis for CCHF virus (CCHFV) IgG antibodies was performed by ELISA. Anti-CCHFV IgG antibodies were positive in 85 (13·6%) participants. None of the seropositive individuals had a history of symptomatic infection. Regression analysis revealed that animal husbandry [odds ratio (OR) 1·84, 95% confidence interval (CI) 1·09–3·11], contact with animals (OR 2·31, 95% CI 1·08–5·10), contact with ticks (OR 3·45, 95% CI 1·87–6·46), removing ticks from animals by hand (OR 2·48, 95% CI 1·48–4·18) and living in a rural area (OR 4·05, 95% CI 1·65–10·56) were associated with increased odds of having IgG seropositivity, while being a household member of a patient with prior CCHF infection had no influence on seropositivity rates. This result also supports the idea that CCHF is not transmitted person-to-person by the airborne route.

  • The first Crimean-Congo hemorrhagic fever case in the winter season from Turkey
    Iftihar Köksal, Gurdal Yilmaz, Serap Iskender, Mustafa Arslan, Ilknur Yavuz, Firdevs Aksoy, and Zati Vatansever

    S. Karger AG
    Turkey is one of the countries in which Crimean-Congo hemorrhagic fever is frequently seen and most of the cases are reported between April and August. We describe the first case of Crimean-Congo hemorrhagic fever in the winter season, when Hyalomma tick activity is absent, from Turkey.

  • Crimean-Congo haemorrhagic fever presenting as epididymo-orchitis
    Hamit Zafer Aksoy, Gurdal Yilmaz, Firdevs Aksoy, and Iftihar Koksal

    Elsevier BV
    BACKGROUND Crimean-Congo haemorrhagic fever (CCHF) is a potentially fatal disease caused by a tick-borne virus. OBJECTIVES A 53-year-old man presented with fever and acute painful scrotal swelling simulating acute epididymo-orchitis. STUDY DESIGN Based on the clinical and epidemiological findings, CCHF virus infection and epididymo-orchitis were suspected. This symptom, rarely reported in viral haemorrhagic fevers, was observed in this case. RESULTS The diagnosis was confirmed by detection of the IgM antibody to CCHF virus and positive RT-PCR. CONCLUSION We report the first case of imported CCHF presenting as epididymo-orchitis. This symptom is a rare complication of CCHF, and the clinician should consider this entity in the differential diagnosis of adults with epididymo-orchitis.

  • The effectiveness of routine laboratory findings in determining disease severity in patients with Crimean-Congo hemorrhagic fever: Severity prediction criteria
    Gurdal Yilmaz, Iftihar Koksal, Murat Topbas, Hulya Yilmaz, and Firdevs Aksoy

    Elsevier BV
    BACKGROUND Crimean-Congo hemorrhagic fever (CCHF) is a potentially fatal disease caused by a tick-borne virus from the Bunyaviridae family. OBJECTIVES To determine the predictive criteria for severity among patients with CCHF based on clinical and laboratory findings. STUDY DESIGN This retrospective study was conducted on patients with CCHF and hospitalized between June 2004 and August 2008 at Karadeniz Technical University, Turkey. Demographic characteristics, clinical findings and laboratory tests on admission of all patients with CCHF were investigated. RESULTS A total of 152 patients with confirmed CCHF were investigated. Sixty-three (41.4%) of these patients were in the severe group. Laboratory findings using the ROC curve method and optimum diagnostic cut-off points for specific laboratory parameters in the severe group were; PLT: 90,000, Hb: 13.5 g/dL, PT: 13.1s, aPTT: 34 s, INR: 1, AST: 117U/L, ALT: 71U/L, AST/ALT: 1.62, LDH: 508 U/L, CK: 267 U/L and CRP: 0.59 mg/dL. At multivariable analysis, the risk for a severe clinical course in CCHF patients increased 2.59 and 3.93 times in the presence of platelet count and Hb below cut-off values, whereas the same risk increased 2.95, 2.92 and 3.47 times when the results for INR, AST and CRP, respectively, were above the predetermined cut-off values. CONCLUSIONS A number of laboratory findings that can easily be measured at routine examination of patients hospitalized with a suspicion of CCHF are valuable and sensitive predictors. These parameters will contribute considerably to the design, practice and management of supportive treatment, blood and blood products replacement and intensive care services.

  • The efficacy of ribavirin in the treatment of Crimean-Congo hemorrhagic fever in Eastern Black Sea region in Turkey
    Iftihar Koksal, Gurdal Yilmaz, Firdevs Aksoy, Hava Aydin, Ilknur Yavuz, Serap Iskender, Korhan Akcay, Sukru Erensoy, Rahmet Caylan, and Kemalettin Aydin

    Elsevier BV
    BACKGROUND The efficiency of ribavirin for treatment of Crimean-Congo hemorrhagic fever (CCHF) is unknown. In the literature, prospective randomized studies investigating the efficacy of ribavirin are not found. OBJECTIVES To investigate the efficacy of ribavirin in treatment of patients with CCHF. STUDY DESIGN In this prospective randomized cohort study 136 cases were included between June 2004 and August 2007. The diagnosis was confirmed in the CCHF reference laboratory of Refik Saydam National Hygiene Central Institute of the Turkish Ministry of Health. Patients either received ribavirin plus supportive treatment (Group A) (n=64) or only supportive treatment (Group B) (n=72). For the evaluation of efficacy of ribavirin, various parameters were compared between Group A and Group B. RESULTS As well as the similarity of demographic features between the two groups, there were no statistical differences in incubation time; hospitalization time; patients requiring platelet replacement therapy; the time taken for platelet levels to return to normal levels and mortality. In Group B, the rate of tick contact was higher (p=0.03). In Group A, leukocyte levels took longer to return to the normal levels (p=0.02). CONCLUSION In our study, there was no positive effect determined on clinical or laboratory parameters in CCHF patients treated with ribavirin, also it was observed that leukocyte levels took longer to return to normal (p=0.02) and, while not statistically significant, the longer period of hospitalization (p=0.09) needed was observed as a negative effect. Because of these reasons, it is thought that the use of ribavirin makes no significant contribution to the prognosis of the CCHF disease.

  • A case of brucella prostatitis misdiagnosed as prostate carcinoma


  • Voriconazole-induced neuropathy
    Firdevs Aksoy, Elif Akdogan, Kemalettin Aydin, Mustafa Yilmaz, Vildan Altunayoglu, Ebru Emel Sozen, Serdar Bedii Omay, and Iftihar Koksal

    S. Karger AG
    Background: Fungal infections are common and life threatening among immunosupressive patients. Rare side effects may occur related to the use of voriconazole, which is the drug of choice in invasive aspergillosis. Patients and Methods: Neuropathy was determined through clinical and electromyographic findings during the course of voriconazole therapy in 2 patients developing invasive aspergillosis. Results: Since examinations revealed no neuropathy capable of ascription to any other cause and improvement followed the cessation of the drug, this suggested that neuropathy may be linked to voriconazole use. Conclusion: Neuropathy may be seen as a side effect during voriconazole treatment. Voriconazole-induced side effects should be borne in mind and patients carefully monitored during its use.