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Özden A, Dalgıç B, Demir M, Hazırolan G, Uzun Ö, Metan G. Impact of a hospital sepsis management protocol on the selection of empirical antibiotics in infectious disease consultations. J Chemother 2024; 36:190-197. [PMID: 38131316 DOI: 10.1080/1120009x.2023.2296146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
It is well-established that Infectious Diseases consultation (IDC) enhances the prognosis of bloodstream infections. However, it is unclear if adoption of an institutional sepsis protocol would lead to any further improvement in a setting where IDC and infectious diseases approval (IDA) - available throughout 7 days/24 hours -are mandatory for administering broad spectrum antibiotics. We aimed to evaluate the influence of the institutional sepsis protocol developed by Department of Infectious Diseases and Clinical Microbiology on the selection of appropriate empirical antibiotics by IDC through focusing on patients who had bloodstream infections caused by Extended-spectrum β-lactamase (ESBL) producing Escherichia coli and Klebsiella pneumoniae, which poses a therapeutic challenge. One hundred and fifty-three adult patients (58 patients in the pre-protocol period and 95 patients in the post-protocol period), who received empirical antibiotic treatment for ESBL-producing E. coli and K. pneumoniae, in whom at least one systemic antibiotic was started either on the day blood cultures were drawn or not later than 24 hours were included in the study, retrospectively. The primary outcome was whether the empirical treatment regimen included a carbapenem that was accepted as the appropriate treatment based on the results of the MERINO trial. Secondary outcomes included empirical treatment based on pre-defined risk factors suggesting multidrug resistance (MDR), 30-day inpatient mortality, and appropriate antibacterial treatment according to antimicrobial susceptibility test (AST) results. The median age (Interquartile range) was 61 (48-70.5) years and 76 (49.7%) out of 153 patients were male. The patients in the post-protocol period were older compared to the pre-protocol period (54 years vs 64 years, p = 0.045). The Charlson Comorbidity Index was higher during the post-protocol period compared to the pre-protocol period (4 vs 5, p=0.038). At least one risk factor for MDR bacteria infection was present in 147 (96.1%) of the 153 patients. While the rate of risk factors for MDR bacteria infections did not differ significantly between the pre-protocol and post-protocol periods, the post-protocol period showed a significantly higher level of appropriate antibiotic treatment according to the presence of MDR risk factors compared to the pre-protocol period (44.8% vs 64.2%, p=0.019). There was a significant increase in the use of carbapenems in the post-protocol period compared to the pre-protocol period (34.5% vs. 56.8%, p=0.007). When the subgroup of patients who were likely to have infection caused by ESBL-producing bacteria is taken into consideration, the carbapenem use was more frequent in the post-protocol period (37.8% vs 68.9%, p=0.002). The rate of appropriate empirical treatment according to AST was not statistically different between pre-protocol and post-protocol period. The 30-day mortality rates were similar in both periods (24.1% vs 31.5, p=0.33). However, the rate of susceptibility to piperacillin-tazobactam was statistically higher in the pre-protocol period (82.6% vs 46.2%, p=0.016) when 39.7% of the patients received piperacillin-tazobactam as the empirical treatment. This study highlights the significance of using a structured protocol to attain appropriate empirical treatment for patients suspected of sepsis, even in a setting where IDC is readily available.
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Affiliation(s)
- Aslı Özden
- Faculty of Medicine, Hacettepe University, Ankara, Turkiye
| | - Büşra Dalgıç
- Faculty of Medicine, Hacettepe University, Ankara, Turkiye
| | - Mervenur Demir
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkiye
| | - Gülşen Hazırolan
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkiye
| | - Ömrüm Uzun
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkiye
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkiye
- Infection Control Committee Hacettepe University Hospitals, Ankara, Turkiye
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Ballı FN, Ekinci PB, Kurtaran M, Kara E, Dizman GT, Sönmezer MÇ, Hayran M, Demirkan K, Metan G. Battle of polymyxin induced nephrotoxicity: Polymyxin B versus colistin. Int J Antimicrob Agents 2024; 63:107035. [PMID: 37979889 DOI: 10.1016/j.ijantimicag.2023.107035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
OBJECTIVES Nephrotoxicity is the most serious and common adverse effect that limits the use of polymyxins. This study compared polymyxin E (colistin) and polymyxin B regarding drug-related nephrotoxicity. METHODS This study was conducted as a retrospective cohort study in a university hospital between January 2020 and July 2022. Patients older than 18 years and who received colistin or polymyxin B were identified using electronic hospital records. Kidney disease improving global outcome criteria were used for assessing nephrotoxicity. RESULTS A total of 190 patients, 95 in both groups, were evaluated. The incidence of acute kidney injury during the treatment was higher in the colistin group [52.6% (n = 50) and 34.7% (n = 33), P = 0.013]. In patients who were exposed to high-dose, the rate of nephrotoxicity was higher in patients receiving colistin [25% (n = 3) vs. 76.9% (n = 10); P = 0.017]. Nephrotoxicity was reversible in 64.4% (n = 38) of patients and the reversibility rate was similar (70% and 52.6% for colistin and polymyxin; P = 0.248). In the multivariable analysis, colistin treatment [odds ratio (OR): 3.882, 95% confidence interval (95% CI) = (1.829-8.241)], concomitant vasopressor use (OR = 2.08, CI: 1.036-4.179), and age (OR=1.036, CI: 1.014-1.058) were found to be independent markers of nephrotoxicity. CONCLUSION Nephrotoxicity was more common in patients receiving high-dose colistin than polymyxin B. Therefore, the use of appropriate doses of colistin is important in terms of preventing nephrotoxicity. In addition, advancing age and concomitant use of vasopressors contribute to polymyxin-related nephrotoxicity.
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Affiliation(s)
- Fatma Nisa Ballı
- Department of Clinical Pharmacy, Gazi University Faculty of Pharmacy, Ankara, Türkiye; Department of Clinical Pharmacy, Hacettepe University Faculty of Pharmacy, Ankara, Türkiye.
| | - Pınar Bakır Ekinci
- Department of Clinical Pharmacy, Hacettepe University Faculty of Pharmacy, Ankara, Türkiye
| | - Melek Kurtaran
- Department of Clinical Pharmacy, Hacettepe University Faculty of Pharmacy, Ankara, Türkiye
| | - Emre Kara
- Department of Clinical Pharmacy, Hacettepe University Faculty of Pharmacy, Ankara, Türkiye
| | - Gülçin Telli Dizman
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Türkiye
| | - Meliha Çağla Sönmezer
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Türkiye
| | - Mutlu Hayran
- Department of Preventive Oncology, Hacettepe University Faculty of Medicine, Ankara, Türkiye
| | - Kutay Demirkan
- Department of Clinical Pharmacy, Hacettepe University Faculty of Pharmacy, Ankara, Türkiye
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Türkiye
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Er B, Er AG, Gulmez D, Sahin TK, Metan G, Saribas Z, Arikan-Akdagli S, Uzun O. Diagnostic performance and longitudinal analysis of fungal biomarkers in COVID-19 associated pulmonary aspergillosis. Heliyon 2023; 9:e21721. [PMID: 37942162 PMCID: PMC10628712 DOI: 10.1016/j.heliyon.2023.e21721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023] Open
Abstract
Objectives Galactomannan lateral flow assay (GM-LFA) is a reliable test for COVID-19 associated pulmonary aspergillosis (CAPA) diagnosis. We aimed to assess the diagnostic performance of GM-LFA with different case definitions, the association between the longitudinal measurements of serum GM-ELISA, GM-LFA, and the risk of death. Methods Serum and nondirected bronchial lavage (NBL) samples were periodically collected. The sensitivity and specificity analysis for GM-LFA was done in different time periods. Longitudinal analysis was done with the joint model framework. Results A total of 207 patients were evaluated. On the day of CAPA diagnosis, serum GM-LFA had a sensitivity of 42 % (95 % CI: 23-63) and specificity of 82 % (95 % CI: 78-84), while NBL GM-LFA had a sensitivity of 73 % (95 % CI: 45-92), specificity of 85 % (95 % CI: 76-91) for CAPA. Sensitivity decreased through the following days in both samples. Univariate joint model analysis showed that increasing GM-LFA and GM-ELISA levels were associated with increased mortality, and that effect remained same with serum GM-ELISA in multivariate joint model analysis. Conclusion GM-LFA, particularly in NBL samples, seems to be a reliable method for CAPA diagnosis. For detecting patients with higher risk of mortality, longitudinal measurement of serum GM-ELISA can be useful.
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Affiliation(s)
- Berrin Er
- Division of Intensive Care, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ahmet Gorkem Er
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
- Department of Health Informatics, Middle East Technical University, Ankara, Turkey
| | - Dolunay Gulmez
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Taha Koray Sahin
- Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Zeynep Saribas
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Sevtap Arikan-Akdagli
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Omrum Uzun
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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Telli Dizman G, Metan G, Karahan G, Tanrıverdi ES, Hazırolan G, Otlu B, Sönmezer MÇ, Gül ND, Çınar B, Ünal S. Does marking as sterile mean really sterile? Stenotrophomonas maltophilia outbreak caused by a blood-gas injector containing liquid heparin. Infect Control Hosp Epidemiol 2023; 44:1683-1685. [PMID: 36775899 DOI: 10.1017/ice.2023.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
An outbreak investigation was initiated after detecting an increase in the number of patients with Stenotrophomonas maltophilia bloodstream infections (SM-BSIs) througout the hospital. S. maltophilia was isolated from the cultures of blood-gas ınjectors containing liquid heparin. The incidence density of SM-BSIs decreased significantly after prohibiting the use of those injectors.
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Affiliation(s)
- Gülçin Telli Dizman
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Infection Control Committee, Hospitals of Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Infection Control Committee, Hospitals of Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gizem Karahan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Elif Seren Tanrıverdi
- Department of Medical Microbiology, Molecular Microbiology Laboratory, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Gülşen Hazırolan
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe UniversityAnkara, Turkey
| | - Barış Otlu
- Department of Medical Microbiology, Molecular Microbiology Laboratory, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Meliha Çağla Sönmezer
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Nur Dilek Gül
- Infection Control Committee, Hospitals of Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Burcu Çınar
- Infection Control Committee, Hospitals of Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Serhat Ünal
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
- Infection Control Committee, Hospitals of Faculty of Medicine, Hacettepe University, Ankara, Turkey
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Telli Dizman G, Metan G, Zarakolu P, Tanrıverdi ES, Hazırolan G, Aytaç Ak H, Kılınçarslan D, Uzun M, Çelik Kavaklılar B, Arık Z, Otlu B, Ünal S. Cessation of Rectal Screening for Vancomycin-Resistant Enterococci: Experience from a Tertiary Care Hospital from Türkiye. Healthcare (Basel) 2023; 11:2641. [PMID: 37830678 PMCID: PMC10572918 DOI: 10.3390/healthcare11192641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/14/2023] Open
Abstract
OBJECTIVE Here, we compared the impact of different polices on the epidemiology of Vancomycin-resistant Enterococcus faecium bloodstream infections (VRE-BSIs) in a tertiary care hospital including two hospital buildings (oncology and adult hospitals) in the same campus. MATERIAL AND METHODS All patients who were hospitalized in high-risk units were screened weekly for VRE colonization via rectal swab between January 2006 and January 2013. After January 2013, VRE screening was only performed in cases of suspicion of VRE outbreak and during point prevalence studies to evaluate the epidemiology of VRE colonization. Contact precautions were in place for all VRE-positive patients. The incidence density rates of hospital-acquired (HA)-VRE-BSIs were compared between two periods. RESULTS While the rate of VRE colonization was higher in the second period (5% vs. 9.5% (p < 0.01) for the adult hospital, and 6.4% vs. 12% (p = 0.02 for the oncology hospital), there was no increase in the incidence rate HA-VRE BSIs after the cessation of routine rectal screening in either of the hospitals. CONCLUSION Screening policies should be dynamic and individualized according to the epidemiology of VRE as well as the workforce and cost. Periodical rectal screening of VRE can be discontinued if suspicion of an outbreak can be carefully monitored.
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Affiliation(s)
- Gülçin Telli Dizman
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye; (G.M.); (P.Z.); (M.U.); (S.Ü.)
- Infection Control Committee, Hacettepe University Hospitals, Ankara 06800, Türkiye; (H.A.A.); (D.K.)
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye; (G.M.); (P.Z.); (M.U.); (S.Ü.)
- Infection Control Committee, Hacettepe University Hospitals, Ankara 06800, Türkiye; (H.A.A.); (D.K.)
| | - Pınar Zarakolu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye; (G.M.); (P.Z.); (M.U.); (S.Ü.)
| | - Elif Seren Tanrıverdi
- Molecular Microbiology Laboratory, Department of Medical Microbiology, Faculty of Medicine, İnönü University, Malatya 44280, Türkiye; (E.S.T.); (B.O.)
| | - Gülşen Hazırolan
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye;
| | - Hanife Aytaç Ak
- Infection Control Committee, Hacettepe University Hospitals, Ankara 06800, Türkiye; (H.A.A.); (D.K.)
| | - Dilek Kılınçarslan
- Infection Control Committee, Hacettepe University Hospitals, Ankara 06800, Türkiye; (H.A.A.); (D.K.)
| | - Mertcan Uzun
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye; (G.M.); (P.Z.); (M.U.); (S.Ü.)
| | - Başak Çelik Kavaklılar
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye;
| | - Zafer Arık
- Department of Internal Medicine, Section of Oncology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye;
| | - Barış Otlu
- Molecular Microbiology Laboratory, Department of Medical Microbiology, Faculty of Medicine, İnönü University, Malatya 44280, Türkiye; (E.S.T.); (B.O.)
| | - Serhat Ünal
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara 06800, Türkiye; (G.M.); (P.Z.); (M.U.); (S.Ü.)
- Infection Control Committee, Hacettepe University Hospitals, Ankara 06800, Türkiye; (H.A.A.); (D.K.)
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Işık MC, Karcıoğlu O, Hazırolan G, Gülmez D, Onur MR, Kunt MM, Arikan-Akdagli S, Metan G. Necrotizing pneumonia due to Aspergillus and Salmonella after immune checkpoint inhibitor treatment: An unusual case and review of the literature. Rev Iberoam Micol 2023; 40:26-30. [PMID: 37714729 DOI: 10.1016/j.riam.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 05/18/2023] [Accepted: 05/24/2023] [Indexed: 09/17/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitors (ICIs) are a promising new treatment for different types of cancer. The infectious complications in patients taking ICIs are rare. CASE REPORT A 58-year-old male who received chemotherapy consisting of pembrolizumab (PD-1 inhibitor) for esophagus squamous cell carcinoma one month before was admitted to the emergency room with shortness of breath soon after fiberoptic bronchoscopy, which was done for the inspection of the lower airway. A computed tomography of the chest revealed a progressive consolidation on the right upper lobe. Salmonella group D was isolated from the bronchoalveolar lavage (BAL) fluid culture. The fungal culture of the same clinical sample yielded Aspergillus niger; furthermore, a high titer (above the cut-off values) of Aspergillus antigen was found both in the BAL fluid and serum of the patient. Despite the effective spectrum and appropriate dose of antimicrobial treatment, the patient died due to disseminated intravascular coagulopathy. CONCLUSIONS Awareness of unusual pathogens in the etiology of pneumonia after ICI treatment may help to avoid underdiagnosis.
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Affiliation(s)
- Muhammed Cihan Işık
- Department of Clinical Microbiology and Infectious Diseases, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Oğuz Karcıoğlu
- Department of Chest Diseases, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülşen Hazırolan
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Dolunay Gülmez
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Ruhi Onur
- Department of Radiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Mahir Kunt
- Department of Emergency, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Sevtap Arikan-Akdagli
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gökhan Metan
- Department of Clinical Microbiology and Infectious Diseases, Hacettepe University Faculty of Medicine, Ankara, Turkey.
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Sertçelik A, Metan G, Telli Dizman G, Atılmış D, Şahan C, Kalaycı D, Alp A, Çakır B, Zarakolu P, Ünal S, Uzun Ö. Back to the First Days of the Pandemic: How Well Have We Done to Diagnose COVID-19 in Healthcare Workers? FLORA 2022. [DOI: 10.5578/flora.20229604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Ascough S, Ingram RJ, Chu KKY, Moore SJ, Gallagher T, Dyson H, Doganay M, Metan G, Ozkul Y, Baillie L, Williamson ED, Robinson JH, Maillere B, Boyton RJ, Altmann DM. Impact of HLA Polymorphism on the Immune Response to Bacillus Anthracis Protective Antigen in Vaccination versus Natural Infection. Vaccines (Basel) 2022; 10:vaccines10101571. [PMID: 36298436 PMCID: PMC9610610 DOI: 10.3390/vaccines10101571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/07/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
The causative agent of anthrax, Bacillus anthracis, evades the host immune response and establishes infection through the production of binary exotoxins composed of Protective Antigen (PA) and one of two subunits, lethal factor (LF) or edema factor (EF). The majority of vaccination strategies have focused upon the antibody response to the PA subunit. We have used a panel of humanised HLA class II transgenic mouse strains to define HLA-DR-restricted and HLA-DQ-restricted CD4+ T cell responses to the immunodominant epitopes of PA. This was correlated with the binding affinities of epitopes to HLA class II molecules, as well as the responses of two human cohorts: individuals vaccinated with the Anthrax Vaccine Precipitated (AVP) vaccine (which contains PA and trace amounts of LF), and patients recovering from cutaneous anthrax infections. The infected and vaccinated cohorts expressing different HLA types were found to make CD4+ T cell responses to multiple and diverse epitopes of PA. The effects of HLA polymorphism were explored using transgenic mouse lines, which demonstrated differential susceptibility, indicating that HLA-DR1 and HLA-DQ8 alleles conferred protective immunity relative to HLA-DR15, HLA-DR4 and HLA-DQ6. The HLA transgenics enabled a reductionist approach, allowing us to better define CD4+ T cell epitopes. Appreciating the effects of HLA polymorphism on the variability of responses to natural infection and vaccination is vital in planning protective strategies against anthrax.
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Affiliation(s)
- Stephanie Ascough
- Faculty of Medicine, Imperial College, London W12 0NN, UK
- Correspondence: (S.A.); (D.M.A.)
| | - Rebecca J. Ingram
- Wellcome-Wolfson Institute of Experimental Medicine, Queen’s University Belfast, Belfast BT7 1NN, UK
| | | | | | - Theresa Gallagher
- BioMET, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
| | - Hugh Dyson
- Defence Science Technology Laboratory, Porton Down, Salisbury SP4 0JQ, UK
| | - Mehmet Doganay
- Department of Medical Genetics, Erciyes University Hospital, Kayseri 38095, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine Ankara, Ankara 06000, Turkey
| | - Yusuf Ozkul
- Department of Medical Genetics, Erciyes University Hospital, Kayseri 38095, Turkey
| | - Les Baillie
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff CF24 4HQ, UK
| | | | - John H. Robinson
- Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Bernard Maillere
- CEA-Saclay, Département Médicaments et Technologies pour la Santé, Université Paris-Saclay, 91192 Gif-sur-Yvette, France
| | - Rosemary J. Boyton
- Faculty of Medicine, Imperial College, London W12 0NN, UK
- Lung Division, Royal Brompton and Harefield Hospitals, Guy’s and St Thomas’ NHS Foundation Trust, London SE1 9RT, UK
| | - Daniel M. Altmann
- Faculty of Medicine, Imperial College, London W12 0NN, UK
- Correspondence: (S.A.); (D.M.A.)
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Metan G, Demir Çuha M, Hazirolan G, Telli Dizman G, Tanriverdi ES, Otlu B, Tas Z, Zarakolu P, Arik Z, Topeli A, Akinci SB, Ünal S, Uzun Ö. The impact of COVID-19 pandemic on nosocomial multidrug-resistant bacterial bloodstream infections and antibiotic consumption in a tertiary care hospital. GMS Hyg Infect Control 2022; 17:Doc15. [PMID: 36157382 PMCID: PMC9487780 DOI: 10.3205/dgkh000418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
We investigated the change in the epidemiology of nosocomial bloodstream infections (BSIs) caused by multidrug-resistant bacteria during Coronavirus Disease (COVID-19) and antibiotic consumption rates at a pandemic hospital and at the Oncology Hospital which operated as COVID-19-free on the same university campus. Significant increases in the infection density rate (IDRs) of BSIs caused by carbapenem-resistant Acinetobacter baumannii (CRAB) and ampicillin-resistant Enterococcus faecium (ARE) were detected at the pandemic hospital, whereas carbapenem-resistant Klebsiella pneumoniae BSIs were increased at the non-pandemic Oncology Hospital. Pulsed field gel electrophoresis showed a polyclonal outbreak of CRAB in COVID-19 intensive care units. Antibiotic consumption rates were increased for almost all antibiotics, and was most significant for meropenem at both of the hospitals. Increased IDRs of CRAB and ARE BSIs as well as an increased consumption rate of broad-spectrum antibiotics emphasize the importance of a multimodal infection prevention strategy combined with an active antibiotic stewardship program.
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Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey,Infection Control Committee Hacettepe University Hospitals, Ankara, Turkey,*To whom correspondence should be addressed: Gökhan Metan, Hacettepe Üniversitesi Tıp Fakültesi Hastanesi İç Hastalıkları Binası Kat: 1, Enfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Anabilim Dalı, Ankara, Turkey, E-mail: ,
| | - Mervenur Demir Çuha
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülsen Hazirolan
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülçin Telli Dizman
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey,Infection Control Committee Hacettepe University Hospitals, Ankara, Turkey
| | - Elif Seren Tanriverdi
- Department of Medical Microbiology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Baris Otlu
- Department of Medical Microbiology, İnönü University Faculty of Medicine, Malatya, Turkey
| | - Zahit Tas
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Pinar Zarakolu
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Zafer Arik
- Division of Medical Oncology, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Arzu Topeli
- Section of Intensive Care Medicine, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Seda Banu Akinci
- Section of Intensive Care Medicine Department of Anesthesiology and Reanimation, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Serhat Ünal
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey,Infection Control Committee Hacettepe University Hospitals, Ankara, Turkey
| | - Ömrüm Uzun
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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10
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Bolek H, Metan G. The guideline compatibility of mucormycosis management: A retrospective review of 165 case reports from European quality (EQUAL) score perspective. J Mycol Med 2022; 32:101308. [PMID: 35872568 DOI: 10.1016/j.mycmed.2022.101308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/18/2022] [Accepted: 07/04/2022] [Indexed: 10/31/2022]
Affiliation(s)
- Hatice Bolek
- Department of Internal Medicine, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
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11
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Er B, Er AG, Gülmez D, Şahin TK, Halaçlı B, Durhan G, Ersoy EO, Alp A, Metan G, Saribas Z, Arikan‐Akdagli S, Hazırolan G, Akıncı SB, Arıyürek M, Topeli A, Uzun Ö. A screening study for
COVID
‐19‐associated pulmonary aspergillosis in critically ill patients during the third wave of the pandemic. Mycoses 2022; 65:724-732. [PMID: 35531631 PMCID: PMC9348343 DOI: 10.1111/myc.13466] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/01/2022] [Accepted: 05/03/2022] [Indexed: 12/15/2022]
Abstract
Background COVID‐19‐associated pulmonary aspergillosis (CAPA) has been reported as an important cause of mortality in critically ill patients with an incidence rate ranging from 5% to 35% during the first and second pandemic waves. Objectives We aimed to evaluate the incidence, risk factors for CAPA by a screening protocol and outcome in the critically ill patients during the third wave of the pandemic. Patients/Methods This prospective cohort study was conducted in two intensive care units (ICU) designated for patients with COVID‐19 in a tertiary care university hospital between 18 November 2020 and 24 April 2021. SARS‐CoV‐2 PCR‐positive adult patients admitted to the ICU with respiratory failure were included in the study. Serum and respiratory samples were collected periodically from ICU admission up to CAPA diagnosis, patient discharge or death. ECMM/ISHAM consensus criteria were used to diagnose and classify CAPA cases. Results A total of 302 patients were admitted to the two ICUs during the study period, and 213 were included in the study. CAPA was diagnosed in 43 (20.1%) patients (12.2% probable, 7.9% possible). In regression analysis, male sex, higher SOFA scores at ICU admission, invasive mechanical ventilation and longer ICU stay were significantly associated with CAPA development. Overall ICU mortality rate was higher significantly in CAPA group compared to those with no CAPA (67.4% vs 29.4%, p < .001). Conclusions One fifth of critically ill patients in COVID‐19 ICUs developed CAPA, and this was associated with a high mortality.
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Affiliation(s)
- Berrin Er
- Division of Intensive Care, Department of Internal Medicine Hacettepe University Faculty of Medicine Ankara Turkey
- Ankara City Hospital, Intensive Care Unit Ankara
| | - Ahmet Görkem Er
- Department of Infectious Diseases and Clinical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Dolunay Gülmez
- Department of Medical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Taha Koray Şahin
- Department of Internal Medicine Hacettepe University Faculty of Medicine Ankara Turkey
| | - Burçin Halaçlı
- Division of Intensive Care, Department of Internal Medicine Hacettepe University Faculty of Medicine Ankara Turkey
| | - Gamze Durhan
- Department of Radiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Ebru Ortaç Ersoy
- Division of Intensive Care, Department of Internal Medicine Hacettepe University Faculty of Medicine Ankara Turkey
| | - Alpaslan Alp
- Department of Medical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Zeynep Saribas
- Department of Medical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Sevtap Arikan‐Akdagli
- Department of Medical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Gülşen Hazırolan
- Department of Medical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Seda Banu Akıncı
- Division of Intensive Care, Department of Anaestesiology and Reanimation Hacettepe University Faculty of Medicine Ankara Turkey
| | - Macit Arıyürek
- Department of Radiology Hacettepe University Faculty of Medicine Ankara Turkey
| | - Arzu Topeli
- Division of Intensive Care, Department of Internal Medicine Hacettepe University Faculty of Medicine Ankara Turkey
| | - Ömrüm Uzun
- Department of Infectious Diseases and Clinical Microbiology Hacettepe University Faculty of Medicine Ankara Turkey
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12
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Şener B, Kirbaş E, Sancak B, Gözalan A, Evren E, Karahan ZC, Zeytinoğlu A, Dinç B, Alp A, Dizman GT, Metan G, Birengel S, Gülten E, Taşbakan M, Ayhan M. PERFORMANCE EVALUATION OF SIX DIFFERENT SARS-CoV-2 ANTIBODY IMMUNOASSAYS: DISEASE SEVERITY AND SERUM SAMPLING TIME AFFECT THE SENSITIVITY. Jpn J Infect Dis 2022; 75:388-394. [PMID: 35354702 DOI: 10.7883/yoken.jjid.2021.636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Comparative validation data and clinical performance data are essential for the reliable interpretation of SARS-CoV-2 antibody test results. This study aimed to assess the performance of six SARS-CoV-2 IgG immunoassays in different disease severity settings. Four automated chemiluminescence immunoassays Access (Beckman Coulter), Architect (Abbott), Atellica-IM (Siemens) and Elecsys (Roche) and two ELISA assays (SARS-CoV-2 IgG-S1-based and NCP IgG, Euroimmun) were evaluated in 143 patients and 50 pre-pandemic control sera. Accuracy and precision tests were performed for validation. Overall sensitivity differed between 73.38-88.65%, being higher in spike protein-based assays. Specificity was ≥ 98% in all immunoassays. IgG response was lower for the samples taken <20 days post-symptom onset (87.30%) than for the samples taken ≥20 days post-symptom onset (94.80%). Higher rate of antibody was detected in the clinically moderate disease group. In the asymptomatic and mild group more antibody positivity was detected with spike protein-based assays. Clinical performance of the immunoassays differs according to disease severity and antigen targeted; moderate disease leading to highest rate of IgG response. All the assays tested were eligible for the detection of SARS-CoV-2 IgG however, spike-based assays revealed relatively higher sensitivity than the nucleoprotein-based assays particularly in the asymptomatic and mild disease severity.
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Affiliation(s)
- Burçin Şener
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Turkey
| | - Ekin Kirbaş
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Turkey
| | - Banu Sancak
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Turkey
| | - Ayşegül Gözalan
- Department of Medical Microbiology, Faculty of Medicine, Alaaddin Keykubat University, Turkey
| | - Ebru Evren
- Department of Medical Microbiology, Faculty of Medicine, Ankara University, Turkey
| | - Zeynep Ceren Karahan
- Department of Medical Microbiology, Faculty of Medicine, Ankara University, Turkey
| | - Ayşın Zeytinoğlu
- Department of Medical Microbiology, Faculty of Medicine, Ege University, Turkey
| | - Bedia Dinç
- Medical Microbiology Laboratory, Ankara Bilkent City Hospital, Turkey
| | - Alpaslan Alp
- Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Turkey
| | - Gülçin Telli Dizman
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Hacettepe University, Turkey
| | - Gökhan Metan
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Hacettepe University, Turkey
| | - Serhat Birengel
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Ankara University, Turkey
| | - Ezgi Gülten
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Ankara University, Turkey
| | - Meltem Taşbakan
- Department of Clinical Microbiology and Infectious Diseases, Faculty of Medicine, Ege University, Turkey
| | - Müge Ayhan
- Department of Clinical Microbiology and Infectious Diseases, Ankara Bilkent City Hospital, Turkey
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13
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Sartelli M, Labricciosa FM, Coccolini F, Coimbra R, Abu-Zidan FM, Ansaloni L, Al-Hasan MN, Ansari S, Barie PS, Caínzos MA, Ceresoli M, Chiarugi M, Claridge JA, Cicuttin E, Dellinger EP, Fry DE, Guirao X, Hardcastle TC, Hecker A, Leppäniemi AK, Litvin A, Marwah S, Maseda E, Mazuski JE, Memish ZA, Kirkpatrick AW, Pagani L, Podda M, Rasa HK, Sakakushev BE, Sawyer RG, Tumietto F, Xiao Y, Aboubreeg WF, Adamou H, Akhmeteli L, Akin E, Alberio MG, Alconchel F, Magagi IA, Araúz AB, Argenio G, Atanasov BC, Atici SD, Awad SS, Baili E, Bains L, Bala M, Baraket O, Baral S, Belskii VA, Benboubker M, Ben-Ishay O, Bordoni P, Boumédiène A, Brisinda G, Cavazzuti L, Chandy SJ, Chiarello MM, Cillara N, Clarizia G, Cocuz ME, Cocuz IG, Conti L, Coppola R, Cui Y, Czepiel J, D'Acapito F, Damaskos D, Das K, De Simone B, Delibegovic S, Demetrashvili Z, Detanac DS, Dhingra S, Di Bella S, Dimitrov EN, Dogjani A, D'Oria M, Dumitru IM, Elmangory MM, Enciu O, Fantoni M, Filipescu D, Fleres F, Foghetti D, Fransvea P, Gachabayov M, Galeiras R, Gattuso G, Ghannam WM, Ghisetti V, Giraudo G, Gonfa KB, Gonullu E, Hamad YTEY, Hecker M, Isik A, Ismail N, Ismail A, Jain SA, Kanj SS, Kapoor G, Karaiskos I, Kavalakat AJ, Kenig J, Khamis F, Khokha V, Kiguba R, Kim JI, Kobe Y, Kok KYY, Kovacevic BM, Kryvoruchko IA, Kuriyama A, Landaluce-Olavarria A, Lasithiotakis K, Lohsiriwat V, Lostoridis E, Luppi D, Vega GMM, Maegele M, Marinis A, Martines G, Martínez-Pérez A, Massalou D, Mesina C, Metan G, Miranda-Novales MG, Mishra SK, Mohamed MIH, Mohamedahmed AYY, Mora-Guzmán I, Mulita F, Musina AM, Navsaria PH, Negoi I, Nita GE, O'Connor DB, Ordoñez CA, Pantalone D, Panyko A, Papadopoulos A, Pararas N, Pata F, Patel T, Pellino G, Perra T, Perrone G, Pesce A, Pintar T, Popivanov GI, Porcu A, Quiodettis MA, Rahim R, Mitul AR, Reichert M, Rems M, Campbell GYR, Rocha-Pereira N, Rodrigues G, Villamil GER, Rossi S, Sall I, Kafil HS, Sasia D, Seni J, Seretis C, Serradilla-Martín M, Shelat VG, Siribumrungwong B, Slavchev M, Solaini L, Tan BK, Tarasconi A, Tartaglia D, Toma EA, Tomadze G, Toro A, Tovani-Palone MR, van Goor H, Vasilescu A, Vereczkei A, Veroux M, Weckmann SA, Widmer LW, Yahya A, Zachariah SK, Zakaria AD, Zubareva N, Zuidema WP, Di Carlo I, Cortese F, Baiocchi GL, Maier RV, Catena F. It is time to define an organizational model for the prevention and management of infections along the surgical pathway: a worldwide cross-sectional survey. World J Emerg Surg 2022; 17:17. [PMID: 35300731 PMCID: PMC8928018 DOI: 10.1186/s13017-022-00420-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/28/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The objectives of the study were to investigate the organizational characteristics of acute care facilities worldwide in preventing and managing infections in surgery; assess participants' perception regarding infection prevention and control (IPC) measures, antibiotic prescribing practices, and source control; describe awareness about the global burden of antimicrobial resistance (AMR) and IPC measures; and determine the role of the Coronavirus Disease 2019 pandemic on said awareness. METHODS A cross-sectional web-based survey was conducted contacting 1432 health care workers (HCWs) belonging to a mailing list provided by the Global Alliance for Infections in Surgery. The self-administered questionnaire was developed by a multidisciplinary team. The survey was open from May 22, 2021, and June 22, 2021. Three reminders were sent, after 7, 14, and 21 days. RESULTS Three hundred four respondents from 72 countries returned a questionnaire, with an overall response rate of 21.2%. Respectively, 90.4% and 68.8% of participants stated their hospital had a multidisciplinary IPC team or a multidisciplinary antimicrobial stewardship team. Local protocols for antimicrobial therapy of surgical infections and protocols for surgical antibiotic prophylaxis were present in 76.6% and 90.8% of hospitals, respectively. In 23.4% and 24.0% of hospitals no surveillance systems for surgical site infections and no monitoring systems of used antimicrobials were implemented. Patient and family involvement in IPC management was considered to be slightly or not important in their hospital by the majority of respondents (65.1%). Awareness of the global burden of AMR among HCWs was considered very important or important by 54.6% of participants. The COVID-19 pandemic was considered by 80.3% of respondents as a very important or important factor in raising HCWs awareness of the IPC programs in their hospital. Based on the survey results, the authors developed 15 statements for several questions regarding the prevention and management of infections in surgery. The statements may be the starting point for designing future evidence-based recommendations. CONCLUSION Adequacy of prevention and management of infections in acute care facilities depends on HCWs behaviours and on the organizational characteristics of acute health care facilities to support best practices and promote behavioural change. Patient involvement in the implementation of IPC is still little considered. A debate on how operationalising a fundamental change to IPC, from being solely the HCWs responsibility to one that involves a collaborative relationship between HCWs and patients, should be opened.
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Affiliation(s)
| | | | - Federico Coccolini
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | - Raul Coimbra
- Comparative Effectiveness and Clinical Outcomes Research Center, Riverside University Health System Medical Center, Riverside, USA
| | - Fikri M Abu-Zidan
- Department of Surgery, College of Medicine and Health Sciences, UAE University, Al-Ain, United Arab Emirates
| | - Luca Ansaloni
- Department of Surgery, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Majdi N Al-Hasan
- Department of Internal Medicine, University of South Carolina School of Medicine, Columbia, USA
| | - Shamshul Ansari
- Department of Microbiology, Chitwan Medical College and Teaching Hospital, Bharatpur, Chitwan, Nepal
| | - Philip S Barie
- Department of Surgery, Weill Cornell Medicine, New York, USA
| | | | - Marco Ceresoli
- Department of General and Emergency Surgery, Milano-Bicocca University, School of Medicine and Surgery, Milan, Italy
| | - Massimo Chiarugi
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | - Jeffrey A Claridge
- MetroHealth Medical Center, Case Western Reserve University, Cleveland, OH, USA
| | - Enrico Cicuttin
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | | | - Donald E Fry
- Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - Xavier Guirao
- Surgical Endocrine Head and Neck Unit, Department of General Surgery, Parc Tauli, Hospital Universitari, Sabadell, Spain
| | - Timothy Craig Hardcastle
- Trauma and Burn Service, Department of Surgery, University of KwaZulu-Natal, Durban, South Africa
| | - Andreas Hecker
- Department of Surgery, University Hospital of Giessen, Giessen, Germany
| | - Ari K Leppäniemi
- Abdominal Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Andrey Litvin
- Department of Surgical Disciplines, Immanuel Kant Baltic Federal University, Regional Clinic Hospital, Kaliningrad, Russia
| | - Sanjay Marwah
- Department of Surgery, BDS Post-Graduate Institute of Medical Sciences, Rohtak, India
| | - Emilio Maseda
- Surgical Critical Care, Department of Anesthesia, Hospital Valdecilla, Santander, Spain
| | - John E Mazuski
- Department of Surgery, Washington University in Saint Louis, Saint Louis, USA
| | - Ziad Ahmed Memish
- Research and Innovation Center, King Saud Medical City, College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia
| | - Andrew W Kirkpatrick
- General, Acute Care, Abdominal Wall Reconstruction, and Trauma Surgery, Foothills Medical Centre, Calgary, Canada
| | - Leonardo Pagani
- Antimicrobial Stewardship Program, Bolzano Central Hospital, Bolzano, Italy
| | - Mauro Podda
- Department of Emergency Surgery, Cagliari University Hospital "D. Casula", AOU Cagliari, Cagliari, Italy
| | | | - Boris E Sakakushev
- General Surgery, UMHAT St George Plovdiv, RIMU/Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Robert G Sawyer
- Department of Surgery, Homer Stryker, M.D., School of Medicine, Western Michigan University, Kalamazoo, USA
| | - Fabio Tumietto
- Infectious Diseases Unit, IRCCS Azienda Ospedaliero Universitaria di Bologna, Bologna, Italy
| | - Yonghong Xiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | | | | | - Lali Akhmeteli
- Department of Surgery, TSMU First University Clinic, Tbilisi, Georgia
| | - Emrah Akin
- Department of Surgery, Sakarya University Educational and Research Hospital, Sakarya, Turkey
| | | | - Felipe Alconchel
- Department of Surgery and Transplantation, Virgen de La Arrixaca University Hospital, El Palmar, Spain
| | | | - Ana Belén Araúz
- Infectious Diseases Unit, Hospital Santo Tomás, Panama City, Panama
| | - Giulio Argenio
- Emergency Surgery Unit, AOU San Giovanni di Dio e Ruggi d'Aragona, University of Salerno, Salerno, Italy
| | - Boyko C Atanasov
- Department of Surgery, UMHAT Eurohospital Plovdiv, RIMU/Research Institute at Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Semra Demirli Atici
- Department of Surgery, University of Health Sciences Tepecik Training and Research Hospital, Izmir, Turkey
| | - Selmy Sabry Awad
- Department of Trauma and Acute Care Surgery, Mansoura University Hospital, Mansoura University, Mansoura, Egypt
| | - Efstratia Baili
- Second Department of Surgery, IASO General Hospital, Athens, Greece
| | - Lovenish Bains
- Department of Surgery, Maulana Azad Medical College, New Delhi, India
| | - Miklosh Bala
- Department of Surgery, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Oussama Baraket
- Department of Surgery, Department of Surgery, Bizerte Hospital, Tunis El Manar University, Tunis, Tunisia
| | - Suman Baral
- Department of Surgery, Dirghayu Pokhara Hospital, Pokhara, Nepal
| | - Vladislav A Belskii
- Department of Anesthesiology and Intensive Care, Privolzhskiy District Medical Center, Nizhny Novgorod, Russia
| | - Moussa Benboubker
- HAIs Control Committee, HASSAN II University Hospital Fez, Fez, Morocco
| | - Offir Ben-Ishay
- Department of Surgery, Rambam Health Care Campus, Haifa, Israel
| | - Pierpaolo Bordoni
- Department of Surgery, ASST Valtellina e Alto Lario, Sondrio Hospital, Sondrio, Italy
| | | | - Giuseppe Brisinda
- Medical and Surgical Sciences Department, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Laura Cavazzuti
- Medical Directorate, Arcispedale Santa Maria Nuova Hospital, Local Health Authority-IRCSS of Reggio Emilia, Reggio Emilia, Italy
| | - Sujith J Chandy
- Department of Pharmacology and Clinical Pharmacology, Christian Medical College, Vellore, India
| | - Maria Michela Chiarello
- Department of Surgery, Ospedale San Giovanni di Dio, Azienda Sanitaria Provinciale, Crotone, Italy
| | - Nicola Cillara
- Department of Surgery, PO Santissima Trinità ASSL Cagliari, Cagliari, Italy
| | - Guglielmo Clarizia
- Department of Surgery, ASST Valtellina e Alto Lario, Sondrio Hospital, Sondrio, Italy
| | - Maria-Elena Cocuz
- Faculty of Medicine, University Transilvania of Brasov, Brasov, Romania
| | - Iuliu Gabriel Cocuz
- Pathophysiology Department, George Emil Palade University of Medicine, Pharmacy, Sciences and Technology, George Emil Palade of Targu Mures, Targu Mures, Romania
| | - Luigi Conti
- Department of Surgery, Ospedale G. Da Saliceto, AUSL Piacenza, Piacenza, Italy
| | | | - Yunfeng Cui
- Department of Surgery, Tianjin Nankai Hospital, Nankai Clinical School of Medicine, Tianjin Medical University, Tianjin, China
| | - Jacek Czepiel
- Department of Infectious and Tropical Diseases, Jagiellonian University Medical College, Krakaw, Poland
| | - Fabrizio D'Acapito
- Department of Surgery, Forlì Morgagni-Pierantoni Hospital, AUSL Romagna, Forlì, Italy
| | | | - Koray Das
- Department of Surgery, University of Health Sciences, Adana City Training and Research Hospital, Adana, Turkey
| | - Belinda De Simone
- Emergency and Metabolic Minimally Invasive Surgery, Poissy-Saint-Germain-en-Laye Hospital, Yvelines, France
| | - Samir Delibegovic
- Department of Surgery, University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina
| | - Zaza Demetrashvili
- Department of Surgery, Kipshidze Central University Hospital, Tbilisi, Georgia
| | - Dzemail S Detanac
- Department of Surgery, General Hospital Novi Pazar, Novi Pazar, Serbia
| | - Sameer Dhingra
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research (NIPER), Hajipur, Bihar, India
| | - Stefano Di Bella
- Clinical Department of Medical, Surgical and Health Sciences, Trieste University, Trieste, Italy
| | - Evgeni N Dimitrov
- Department of Surgical Diseases, University Hospital "Prof. Dr. Stoyan Kirkovich", Stara Zagora, Bulgaria
| | - Agron Dogjani
- Department of Surgery, University of Medicine of Tirana, Tirana, Albania
| | - Mario D'Oria
- Division of Vascular and Endovascular Surgery, Cardiovascular Department, University Hospital of Trieste, Trieste, Italy
| | | | | | - Octavian Enciu
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Massimo Fantoni
- Dipartimento Di Scienze Di Laboratorio E Infettivologiche, Fondazione Policlinico Gemelli IRCCS, Rome, Italy
| | - Daniela Filipescu
- Cardiac Anaesthesia and Intensive Care 2, Emergency Institute of Cardiovascular Diseases, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Francesco Fleres
- Department of Surgery, ASST Valtellina e Alto Lario, Sondrio Hospital, Sondrio, Italy
| | | | - Pietro Fransvea
- Medical and Surgical Sciences Department, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy
| | - Mahir Gachabayov
- Department of Abdominal Surgery, Vladimir City Emergency Hospital, Vladimir, Russia
| | - Rita Galeiras
- Critical Care Unit, Complexo Hospitalario Universitario, La Coruna, Spain
| | - Gianni Gattuso
- Department of Infectious Diseases, Carlo Poma" Hospital ASST, Mantova, Italy
| | - Wagih M Ghannam
- Department of Surgery, Mansoura Faculty of Medicine, Mansoura, Egypt
| | - Valeria Ghisetti
- Laboratory of Microbiology and Virology, Amedeo di Savoia Hospital and ASL Città di Torino, Turin, Italy
| | - Giorgio Giraudo
- Department of Surgery, Aso Santa Croce e Carle, Cuneo, Italy
| | - Kebebe Bekele Gonfa
- Department of Surgery, Madda Walabu University Goba Referral Hospital, Bala-Robe, Ethiopia
| | - Emre Gonullu
- Department of Surgery, Sakarya University, Adapazarı, Turkey
| | | | - Matthias Hecker
- Medical Clinic II, University Hospital Giessen, Glessen, Germany
| | - Arda Isik
- Department of Surgery, Istanbul Medeniyet University, Istanbul, Turkey
| | - Nizar Ismail
- Trauma and Orthopaedics, Stoke Mandeville Hospital, Aylesbury, UK
| | - Azzain Ismail
- Trauma and Orthopaedics Woodend Hospital, Aberdeen, UK
| | | | - Souha S Kanj
- Infectious Diseases Division, American University of Beirut Medical Center, Beirut, Lebanon
| | - Garima Kapoor
- Department of Microbiology, Gandhi Medical College, Bhopal, India
| | - Ilias Karaiskos
- 1St Department of Internal Medicine-Infectious Diseases, Hygeia Hospital, Marousi, Greece
| | - Alfie J Kavalakat
- Department of Surgery, Jubilee Mission Medical College and RI, Thrissur, India
| | - Jakub Kenig
- Department of General Surgery, Jagiellonian University Medical College, Kraków, Poland
| | - Faryal Khamis
- Infectious Diseases and Internal Medicine Department, Royal Hospital, Muscat, Oman
| | - Vladimir Khokha
- Department of Emergency Surgery, City Hospital, Mozyr, Belarus
| | - Ronald Kiguba
- Pharmacology and Therapeutics, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Jae Il Kim
- Department of Surgery, Inje University Ilsan Paik Hospital, Goyang, South Korea
| | - Yoshiro Kobe
- Department of Surgery, Chiba Emergency Medical Center, Chiba, Japan
| | - Kenneth Yuh Yen Kok
- Discipline of Medicine, Pengiran Anak Puteri Rashidah Sa'adatul Bolkiah Institute of Health Sciences, Brunei Darussalam University, Darussalam, Brunei
| | | | | | - Akira Kuriyama
- Emergency and Critical Care Center, Kurashiki Central Hospital, Kurashiki, Japan
| | | | | | - Varut Lohsiriwat
- Department of Surgery, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Davide Luppi
- Department of Surgery, ASMN IRCCS, Reggio Emilia, Italy
| | - Gustavo Miguel Machain Vega
- General Surgery, Universidad Nacional de Asunción-Facultad de Ciencias Medicas, Hospital de Clínicas, Asuncion, Paraguay
| | - Marc Maegele
- Department of Trauma and Orthopedic Surgery, Cologne-Merheim Medical Center (CMMC), University Witten/Herdecke, Cologne, Germany
| | | | - Gennaro Martines
- Department of Surgery, Azienda Ospedaliero Universitaria Policlinico, Bari, Italy
| | - Aleix Martínez-Pérez
- Department of General and Digestive Surgery, Hospital Universitario Doctor Peset, Valencia, Spain
| | - Damien Massalou
- Acute Care Surgery, Centre Hospitalier Universitaire de Nice, Nice University Hospital, Nice, France
| | - Cristian Mesina
- Department of Surgery, Emergency County Hospital of Craiova, Craiova, Romania
| | - Gökhan Metan
- Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - María Guadalupe Miranda-Novales
- Infectious Diseases Department, Paediatric Hospital, Analysis and Synthesis Research Unit, Social Security Mexican Institute, Mexico City, Mexico
| | - Shyam Kumar Mishra
- Clinical Microbiology, Tribhuvan University Teaching Hospital, Institute of Medicine, Kathmandu, Nepal
| | | | | | - Ismael Mora-Guzmán
- Department of Surgery, Hospital General La Mancha Centro, Alcazar de San Juan, Spain
| | - Francesk Mulita
- Department of Surgery, General University Hospital of Patras, Rio, Greece
| | - Ana-Maria Musina
- Department of Surgery, University of Medicine and Pharmacy Grigore T Popa, Iasi, Romania
| | - Pradeep H Navsaria
- Trauma Centre, Groote Schuur Hospital and University of Cape Town, Cape Town, South Africa
| | - Ionut Negoi
- Department of Surgery, Emergency Hospital of Bucharest, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | | | | | | | - Desiré Pantalone
- Emergency Surgery Department, AOU Careggi-Università di Firenze, Florence, Italy
| | - Arpád Panyko
- IVth Department of Surgery, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | | | - Nikolaos Pararas
- Surgical Department, Dr. Sulaiman Al Habib Hospital, Alfaisal University, Riyadh, Saudi Arabia
| | - Francesco Pata
- Department of Surgery, Nicola Giannettasio Hospital, Corigliano-Rossano, Italy
| | - Tapan Patel
- Department of Surgery, Baroda Medical College, Vadodara, India
| | - Gianluca Pellino
- Department of Advanced Medical and Surgical Sciences, Università degli Studi della Campania "Luigi Vanvitelli", Naples, Italy
| | - Teresa Perra
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Azienda Ospedaliero Universitaria di Sassari, Sassari, Italy
| | - Gennaro Perrone
- Department of Emergency Surgery, Parma University Hospital, Parma, Italy
| | - Antonio Pesce
- Department of Surgery, Azienda USL of Ferrara-University of Ferrara, Ferrara, Italy
| | - Tadeja Pintar
- Abdominal Surgery Department, UMC Ljubljana, Ljubljana, Slovenia
| | | | - Alberto Porcu
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, Azienda Ospedaliero Universitaria di Sassari, Sassari, Italy
| | | | - Razrim Rahim
- Department of Surgery, Universiti Sains Islam Malaysia, Nilai, Malaysia
| | - Ashrarur Rahman Mitul
- Unit of Pediatric Surgery, Bangladesh Shishu Hospital and Institute, Dhaka, Bangladesh
| | - Martin Reichert
- Department of Surgery, University Hospital of Giessen, Giessen, Germany
| | - Miran Rems
- Department for General and Abdominal Surgery, General Hospital Jesenice, Jesenice, Slovenia
| | | | | | - Gabriel Rodrigues
- Department of Surgery, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Gustavo Eduardo Roncancio Villamil
- Department of Medicine, Division of Infectious Diseases, Universidad Pontificia Bolivariana, Medellín, Colombia
- Research Group on Cardiovascular and Pulmonary Diseases, Clínica Cardio VID, Medellín, Colombia
| | - Stefano Rossi
- Emergency Surgery Department, San Filippo Neri Hospital, Rome, Italy
| | - Ibrahima Sall
- Department of Surgery, Military Teaching Hospital, Hôpital Principal de Dakar, Dakar, Senegal
| | - Hossein Samadi Kafil
- Drug Applied Research Center, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Diego Sasia
- Department of Surgery, Aso Santa Croce e Carle, Cuneo, Italy
| | - Jeremiah Seni
- Department of Microbiology and Immunology, Weill Bugando School of Medicine, Catholic University of Health and Allied Sciences, Mwanza, Tanzania
| | | | - Mario Serradilla-Martín
- Department of Surgery, Instituto de Investigación Sanitaria Aragón, Miguel Servet University Hospital, Zaragoza, Spain
| | - Vishal G Shelat
- Department of Surgery, Tan Tock Seng Hospital, Novena, Singapore
| | | | - Mihail Slavchev
- Department of Surgery, University Hospital Eurohospital, Plovdiv, Bulgaria
| | - Leonardo Solaini
- Department of Medical and Surgical Sciences, University of Bologna, Forlì, Italy
| | - Boun Kim Tan
- Infection Prevention and Control Unit, Centre des Massues, French Red Cross, Lyon, France
| | - Antonio Tarasconi
- Department of Emergency Surgery, Parma University Hospital, Parma, Italy
| | - Dario Tartaglia
- General, Emergency and Trauma Surgery Department, Pisa University Hospital, Pisa, Italy
| | - Elena Adelina Toma
- Department of Surgery, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Gia Tomadze
- Department of Surgery, Tbilisi State Medical University, Tbilisi, Georgia
| | - Adriana Toro
- Department of General Surgery, E. Muscatello Augusta Hospital, Augusta, Italy
| | - Marcos Roberto Tovani-Palone
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Harry van Goor
- Department of Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alin Vasilescu
- Department of Surgery, St. Spiridon University Hospital "Grigore T Popa" University of Medicine and Pharmacy, Iasi, Romania
| | - Andras Vereczkei
- Department of Surgery, Medical Center University of Pécs, Pécs, Hungary
| | - Massimiliano Veroux
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Catania, Italy
| | | | - Lukas Werner Widmer
- Department of Visceral Surgery and Medicine, Bern University Hospital, Bern, Switzerland
| | | | - Sanoop K Zachariah
- Department of Surgery, Kerala Institute of Medical Sciences, Thiruvananthapuram, Kerala, India
| | - Andee Dzulkarnaen Zakaria
- Department of Surgery, School of Medical Sciences and University Hospital Sains Malaysia, Sains Malaysia University, Penang, Malaysia
| | - Nadezhda Zubareva
- Department of General Surgery, Perm State Medical University N.a. Academician E.A. Wagner, Perm, Russia
| | - Wietse P Zuidema
- Department of Surgery, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Isidoro Di Carlo
- Department of Medical and Surgical Sciences and Advanced Technologies, University of Catania, Catania, Italy
| | - Francesco Cortese
- Emergency Surgery Department, San Filippo Neri Hospital, ASL Roma 1, Rome, Italy
| | - Gian Luca Baiocchi
- Department of Surgery, AAST Cremona, Cremona, Italy
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Ronald V Maier
- Harborview Medical Center, Department of Surgery, University of Washington, Seattle, WA, USA
| | - Fausto Catena
- Department of Surgery, Bufalini" Hospital, Cesena, Italy
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Oral H, Sönmezer MÇ, Yıldız AE, Hazırolan G, Metan G, İnkaya AÇ. Disseminated Brucella melitensis infection following canakinumab treatment. Travel Med Infect Dis 2021; 45:102227. [PMID: 34856407 DOI: 10.1016/j.tmaid.2021.102227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Hakan Oral
- Hacettepe University, Department of Internal Medicine, Ankara, Turkey
| | - Meliha Çağla Sönmezer
- Hacettepe University, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | | | - Gülşen Hazırolan
- Hacettepe University, Department of Microbiology, Ankara, Turkey
| | - Gökhan Metan
- Hacettepe University, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Ahmet Çağkan İnkaya
- Hacettepe University, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey.
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15
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Özdemir N, Dizdar Ö, Yazıcı O, Aksoy S, Dede DS, Budakoğlu B, Metan G, Alp A, Budakoğlu II, Öksüzoğlu ÖBÇ, Özet A, Kılıçkap S, Turhal NS, Çelik İ, Erman M, Ata N, Çelik O, Hayran M. Clinical features and outcomes of COVID-19 in patients with solid tumors: Turkish National Registry Data. Int J Cancer 2021; 148:2407-2415. [PMID: 33284987 DOI: 10.1002/ijc.33426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022]
Abstract
We present demographic, clinical, laboratory characteristics and outcomes of the patients with solid malignancies and novel coronavirus disease (COVID-19) collected from the National COVID-19 Registry of Turkey. A total of 1523 patients with a current or past diagnosis of solid tumors and diagnosed with COVID-19 (confirmed with PCR) between 11 March and 20 May 2020 were included. The primary outcome was 30-day mortality. Median age was 61 (range: 18-94), and 752 (49%) were male. The most common types of cancers were breast (19.8%), prostate (10.9%) and colorectal cancer (10.8%). 65% of the patients had at least one comorbidity. At least one COVID-19-directed therapy was given in 73% of the patients.. Hospitalization rate of the patients was 56.6% and intensive care unit admission rate was 11.4%. Seventy-seven (5.1%) patients died within 30 days of diagnosis. The first multivariate model which included only the demographic and clinical characteristics showed older age, male gender and presence of diabetes and receipt of cytotoxic therapy to be associated with increased 30-day mortality, while breast and prostate cancer diagnoses were associated with lower 30-day mortality. In the second set, we further included laboratory parameters. The presence of leukocytosis (OR 6.7, 95% CI 3.3-13.7, P < .001), lymphocytopenia (OR 3,1, 95% CI 1,6-6,1, P = .001) and thrombocytopenia (OR 3,4 95% CI 1,5-8,1, P = .005) were found to be associated with increased 30-day mortality. Relatively lower mortality compared to Western countries and China mainly results from differences in baseline risk factors but may also implicate the importance of intensive supportive care.
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Affiliation(s)
- Nuriye Özdemir
- Department of Medical Oncology, Gazi University School of Medicine, Ankara, Turkey
| | - Ömer Dizdar
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Ozan Yazıcı
- Department of Medical Oncology, Gazi University School of Medicine, Ankara, Turkey
| | - Sercan Aksoy
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Didem Sener Dede
- Department of Medical Oncology, Anakar Yildirim Beyazit University School of Medicine, Ankara, Turkey
| | - Burçin Budakoğlu
- Department of Medical Oncology, Medikalpark Medical Center, Ankara, Turkey
| | - Gökhan Metan
- Department of Infectious diseases and Clinical Microbiology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Alpaslan Alp
- Department of Clinical Microbiology, Hacettepe University School of Medicine, Ankara, Turkey
| | - Isıl Irem Budakoğlu
- Department of Medical Education and Informatics, Gazi University School of Medicine, Ankara, Turkey
| | - Ömür Berna Çakmak Öksüzoğlu
- Department of Medical Oncology, Dr. Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital, University of Health Sciences, Ankara, Turkey
| | - Ahmet Özet
- Department of Medical Oncology, Gazi University School of Medicine, Ankara, Turkey
| | - Saadettin Kılıçkap
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Nazim Serdar Turhal
- Department of Medical Oncology, İstanbul Anadolu Medical Center and President of Turkish Medical Oncology Association, Istanbul, Turkey
| | - İsmail Çelik
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Mustafa Erman
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Naim Ata
- Strategy Development Department of the Ministry of Health, Ankara, Turkey
| | - Osman Çelik
- Strategy Development Department of the Ministry of Health, Ankara, Turkey
| | - Mutlu Hayran
- Department of Preventive Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
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16
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Özdemir A, Demir Çuha M, Telli Dizman G, Alp A, Metan G, Şener B. [SARS-CoV-2 Seroprevalence Among Healthcare Workers: Retrospective Analysis of the Data From A University Hospital in Turkey]. MIKROBIYOL BUL 2021; 55:223-232. [PMID: 33882653 DOI: 10.5578/mb.20219908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
COVID-19 infection caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) continues to affect people as a global threat, and the number of cases is increasing every day. Healthcare workers who face potential COVID-19 exposure are at high risk of SARS-CoV-2 transmission. Estimating the prevalence of infection among healthcare professionals, determining the related risk factors and applying effective infection control measures are essential for the continuity of the health system. The aim of this study was to investigate the seroprevalence of SARS-CoV-2 among healthcare workers in our hospital who have participated extensively in the monitoring of COVID-19 patients. In the study, the anti-SARS-CoV-2 IgG antibody test results of 774 healthcare workers between March 24, 2020, and September 10, 2020 were analyzed retrospectively. Age, sex, profession, and the status of being diagnosed with COVID-19 before the antibody test were determined for the healthcare workers in the study. When the anti-SARS-CoV-2 IgG antibody results were evaluated, it was determined that 57 healthcare workers were positive, 708 healthcare workers were negative, and 9 healthcare workers were borderline. The seroprevalence among the workers of our hospital was found to be 7.4%. The antibody positivity rate was 75.6% in individuals diagnosed with COVID-19 by SARS-CoV-2 PCR (polymerase chain reaction) and/or thoracic computed tomography and it was found to be 3.5% in individuals without the diagnosis. The semi-quantitative antibody index values of the healthcare workers who were seropositive and diagnosed with COVID-19 before the test (n= 31) and those who did not (n= 26) were statistically compared and a significant difference was found between the two groups (p<0.01). In our study, the highest seropositivity was observed among residents (12.3%) and among nurses (11.1%), respectively. When the seropositivity rates of the residents and the nurses were compared with other occupational groups, the differences were found to be statistically significant (p= 0.04, p= 0.04, respectively). In conclusion, the seroprevalence of SARS-CoV-2 was determined as 7.4% among healthcare workers in a tertiary hospital with high patient admissions during the COVID-19 pandemic. Considering that SARS-CoV-2 seroprevalence was announced as 0.81% in the press release made by the Ministry of Health of Turkey in July 2020, it is seen that the rate of seroprevalence among health care workers is significantly larger than the community. Determination of the seroprevalence in the general population and large-scale studies are needed for risk assessment in healthcare professionals.
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Affiliation(s)
- Adem Özdemir
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Mervenur Demir Çuha
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Gülçin Telli Dizman
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Alpaslan Alp
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Gökhan Metan
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Burçin Şener
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
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Er B, Er AG, Metan G, Halaçlı B, Ortaç Ersoy E, Hazırolan G, Alp A, Sarıbaş Z, Arıkan Akdağlı S, Topeli A, Uzun Ö. Is COVID-19 a risk factor for invasive pulmonary aspergillosis in critically ill patients? Tuberk Toraks 2021; 69:118-120. [PMID: 33853317 DOI: 10.5578/tt.20219918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Berrin Er
- Division of Intensive Care, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ahmet Görkem Er
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Burçin Halaçlı
- Division of Intensive Care, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ebru Ortaç Ersoy
- Division of Intensive Care, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Gülşen Hazırolan
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Alpaslan Alp
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Zeynep Sarıbaş
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Sevtap Arıkan Akdağlı
- Department of Medical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Arzu Topeli
- Division of Intensive Care, Department of Internal Medicine, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Ömrüm Uzun
- Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, Ankara, Turkey
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UyaroĞlu OA, BaŞaran NÇ, ÖziŞik L, Dİzman GT, EroĞlu İ, Şahİn TK, TaŞ Z, İnkaya AÇ, TanriÖver MD, Metan G, GÜven GS, Ünal S. Thirty-day readmission rate of COVID-19 patients discharged from a tertiary care university hospital in Turkey: an observational, single-center study. Int J Qual Health Care 2021; 33:5940459. [PMID: 33104780 PMCID: PMC7665548 DOI: 10.1093/intqhc/mzaa144] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/01/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023] Open
Abstract
Background The 30-day readmission rate is an important indicator of patient safety and hospital’s quality performance. In this study, we aimed to find out the 30-day readmission rate of mild and moderate severity COVID-19 patients discharged from a tertiary care university hospital and to demonstrate the possible factors associated with readmission. Methods This is an observational, single-center study. Epidemiological and clinical data of patients who were hospitalized with a diagnosis of COVID-19 were retrieved from a research database where patient information was recorded prospectively. Readmission data was sought from the hospital information management system and National Health Record System to detect if the patients were readmitted to any hospital within 30 days of discharge. Adult patients (≥18 years-old) hospitalized in COVID-19 wards with a diagnosis of mild or moderate COVID-19 between March 20, 2020 (when the first case was admitted to our hospital), and April 26, 2020 were included. Results From March 26 to May 1, there were 154 mild or moderate severity (non-critical) COVID-19 patients discharged from COVID-19 wards, of which 11 (7.1%) were readmitted The median time of readmission was 8.1 days (IQR=5.2). Two patients (18.1%) were categorized to have mild disease and the remaining 9 (81.9%) as moderate disease. Two patients who were over 65 years of age and had metastatic cancers and hypertension developed sepsis and died in the hospital during the readmission episode. Malignancy (18.7% vs 2.1%, P = 0.04) and hypertension (45.5% vs 14%, P = 0.02) were more common in those who were readmitted. Conclusions This is one of the first studies to report on 30-day readmission rate of COVID-19 in the literature. More comprehensive studies are needed to reveal the causes and predictors of COVID-19 readmissions.
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Affiliation(s)
- Oğuz Abdullah UyaroĞlu
- Faculty of Medicine, Department of Internal Medicine, Section of General Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Nursel Çalik BaŞaran
- Faculty of Medicine, Department of Internal Medicine, Section of General Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Lale ÖziŞik
- Faculty of Medicine, Department of Internal Medicine, Section of General Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Gülçİn Tellİ Dİzman
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - İmdat EroĞlu
- Faculty of Medicine, Department of Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Taha Koray Şahİn
- Faculty of Medicine, Department of Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Zahİt TaŞ
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Ahmet Çağkan İnkaya
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Mıne Durusu TanriÖver
- Faculty of Medicine, Department of Internal Medicine, Section of General Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Gökhan Metan
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Gülay Saİn GÜven
- Faculty of Medicine, Department of Internal Medicine, Section of General Internal Medicine, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
| | - Serhat Ünal
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Hacettepe University, Sıhhiye, Ankara, 06430, Turkey
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19
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Özmen Çapın BB, Sönmezer MÇ, Tortop S, Ünalan T, Bölek H, Altıntop SE, İnkaya AÇ, Metan G, Ergüven S. [The Importance of Awareness for Malaria Regarding Prophylaxis and Early Diagnosis: Two Imported Malaria Cases in Turkey]. MIKROBIYOL BUL 2019; 53:472-479. [PMID: 31709945 DOI: 10.5578/mb.68419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In spite of the fact that Plasmodium vivax is the leading causative agent of malaria in our country, imported malaria cases have been reported, recently. In this report, two malaria cases originated from sub-Saharan Africa, and their diagnostic and therapeutic approaches were aimed to be presented. First case, 45-year-old male, who has been working in Republic of Ghana, was admitted to Hacettepe University Hospitals Emergency Service with complaints of fever, sweating and shivering, after returning to Turkey. On admission, his general condition was fine and his physical examination revealed no pathological finding. After his admission, a fever episode occured and his blood tests revealed anemia, trombocytopenia and increased alkaline phosphatase level. Second case, 39-year-old-male admitted to the emergency service with the complaints of fever, shivering and myalgia. His physical examination revealed decreased breath sounds and splenomegaly, his laboratory tests resulted in pansitopenia and elevated liver enzymes. In the thick blood smears of the patients ring formed young trophozoites are detected and in the thin films multiple ring forms demonstrated in one erythrocyte with the absence of mature trophozoites and schizont forms, which were compatible with falciparum malaria. The rapid antigen test (Digamed, Belgium) of the second case found to be positive for both Plasmodium falciparum and P.vivax and this patient followed-up in intensive care unit due to his deterioration of general condition, respiratory distress, hematuria and change of consciousness. Neither cases were commenced on malaria prophylaxis. Both patients have been in countries which chloroquine resistance is commonly seen, they were treated with artemether/lumefantrine as current World Health Organization recommended. Targeting hypnozoites of P.vivax, primaquine was added to the therapy of the second patient. Both patients resulted in cure. In conclusion, while travelling to endemic countries, people should be informed about the importance of malaria prophylaxis and prophylaxis should be commenced immediately and continued appropriately. Additionally, malaria should always be considered in the differential diagnosis of high fever for the patients who admitted to the hospital with a travelling history to these countries.
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Affiliation(s)
- Büşra Betül Özmen Çapın
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Meliha Çağla Sönmezer
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Sema Tortop
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Tuğçe Ünalan
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
| | - Hatice Bölek
- Hacettepe University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey
| | - Sabri Engin Altıntop
- Hacettepe University Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey
| | - Ahmet Çağkan İnkaya
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Gökhan Metan
- Hacettepe University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Sibel Ergüven
- Hacettepe University Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey
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20
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Metan G, Zarakolu P, Otlu B, Tekin İ, Aytaç H, Bölek EÇ, Metin BC, Arsava EM, Ünal S. Emergence of colistin and carbapenem-resistant Acinetobacter calcoaceticus-Acinetobacter baumannii (CCR-Acb) complex in a neurological intensive care unit followed by successful control of the outbreak. J Infect Public Health 2019; 13:564-570. [PMID: 31672426 DOI: 10.1016/j.jiph.2019.09.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/18/2019] [Accepted: 09/25/2019] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Colistin and carbapenem-resistant Acinetobacter calcoaceticus- Acinetobacter baumannii complex (CCR-Acb complex) was isolated from two consecutive patients in the neurological intensive care unit (NICU). An urgent reaction to this desperate situation was required. PATIENTS AND METHODS Screening cultures were taken from the other patients sharing the NICU with index patients and repeated periodically. NICU was closed for new admissions. Infection control precautions (ICP) such as hand hygiene, cohorting patients colonized with CCR-Acb complex, cohorting the staff caring for these patients, daily bathing with chlorhexidine gluconate impregnated clothes, using gowns when contacting with patients and patient care area, and sodium hypochlorite tablets for environmental cleaning were enforced. RESULTS Screening cultures revealed carbapenem-resistant Acb complex in 12 out of 32 patients and 8 of them were colonized with CCR-Acb complex. NICU was opened for new admissions one month later. No further new cases with CCR-Acb complex were detected by screening cultures after 6 weeks with enforcement of ICP. Moreover, the rate of nosocomial infections caused by other multi-drug resistant Gram-negative bacilli (MDR-GNB) decreased significantly when rates before and after closing the NICU were compared. CONCLUSION ICP were effective not only to limit the spread of CCR-Acb complex but also decreased the incidence of other MDR-GNB infections when applied adequately.
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Affiliation(s)
- Gökhan Metan
- Hacettepe University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey; Hacettepe University, Hospital Infection Control Committee, Ankara, Turkey.
| | - Pınar Zarakolu
- Hacettepe University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Barış Otlu
- İnönü University, Faculty of Medicine, Department of Medical Microbiology, Malatya, Turkey
| | - İlknur Tekin
- Hacettepe University, Hospital Infection Control Committee, Ankara, Turkey
| | - Hanife Aytaç
- Hacettepe University, Hospital Infection Control Committee, Ankara, Turkey
| | - Ertuğrul Ç Bölek
- Hacettepe University, Faculty of Medicine, Department of Internal Medicine, Ankara, Turkey
| | - Baki C Metin
- Hacettepe University, Faculty of Medicine, Department of Public Health, Ankara, Turkey
| | - Ethem M Arsava
- Hacettepe University, Faculty of Medicine, Department of Neurology, Ankara, Turkey
| | - Serhat Ünal
- Hacettepe University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Ankara, Turkey; Hacettepe University, Hospital Infection Control Committee, Ankara, Turkey
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Zarakolu P, Ayaz ÇM, Metan G. [Various antibiotic combinations against carbapenem resistant Acinetobacter baumannii infections and in vitro synergy test results (2002-2016)]. MIKROBIYOL BUL 2019; 52:190-197. [PMID: 29933736 DOI: 10.5578/mb.61903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Carbapenem resistant Acinetobacter baumannii is a bacterium that causes various hospital acquired infections, primarily ventilator-associated pneumonia and bloodstream infections. The multidrug resistance problem of the bacteria all over the world, is also a problem in our center. As the treatment options are decreasing combination therapies become a current issue. It is believed that in vitro synergy tests may guide to the selection of antibiotic combinations. The aim of this study was to present the antibiotic combinations used in the treatment of carbapenem resistant A.baumannii infections and the synergy test results of these combinations. A total of 71 carbapenem-resistant A.baumannii isolates from various clinical samples of patients in Hacettepe University Adult and Oncology Hospitals was included in the study. All isolates were from nosocomial infections that were being requested for synergy testing by the consulting physicians in the Department of Infectious Diseases and Clinical Microbiology between January 2002 and December 2016. Only one isolate from one patient was included in the analysis. The synergy test for these isolates was performed by E-test method. Of the total, 41 (58%) isolates were from various clinical samples of patients in intensive care units and 30 (42%) were from patients in different wards. Twenty-three of the isolates were obtained from bronchoalveolar lavage (BAL) fluid, 18 from pus, 14 from deep tracheal aspirate, 6 from central venous catheter, 5 from blood and 5 from other various samples. The fractional inhibition concentration (FIC) index for each combination was calculated and the results were interpreted as synergistic, additive, indifferent and antagonist. A total of 38 different combinations of antibiotics were tested. According to the frequency of synergistic activity, the combinations were; meropenem-colistin (11/12), meropenem-amikacin (7/9), meropenem-tobramycin (9/13), rifampicin-colistin (7/11), cefaperazone-sulbactam-tobramycin (8/16) and sefaperazon-sulbactam-amikacin (5/10). The most common antagonistic combinations were tigecyclin-colistin (2/6), meropenem-tobramycin (3/13), cefepim-tobramycin (4/19), rifampicin-colistin (2/11) combinations. In our center, different combinations of antibiotics are being used for the treatment of carbapenem-resistant A.baumannii due to the changing and increasing antibiotic resistance of the bacteria over the years. Sensitivity tests as well as synergy tests are used when selecting different combinations of antibiotics. However generalizability of the synergistic effect of combinations is limited. It is important to repeat these studies at regular intervals. In addition there is also a need for further studies to evaluate the correlation between in vitro laboratory results and in vivo clinical compliance.
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Affiliation(s)
- Pınar Zarakolu
- Hacettepe University Faculty of Medicine, Department Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Çağlayan Merve Ayaz
- Hacettepe University Faculty of Medicine, Department Infectious Diseases and Clinical Microbiology, Ankara, Turkey
| | - Gökhan Metan
- Hacettepe University Faculty of Medicine, Department Infectious Diseases and Clinical Microbiology, Ankara, Turkey
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22
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Metan G. Is Aspergillus lateral device ready to implement to the daily practice? The question rising from the new European Invasive Aspergillosis management guideline. J Mycol Med 2019; 29:97-98. [DOI: 10.1016/j.mycmed.2018.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/12/2018] [Accepted: 11/22/2018] [Indexed: 10/27/2022]
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23
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Metan G, Keklik M, Dinç G, Pala Ç, Yıldırım A, Saraymen B, Köker MY, Kaynar L, Eser B, Çetin M. Performance of Galactomannan Antigen, Beta-d-Glucan, and Aspergillus-Lateral-Flow Device for the Diagnosis of Invasive Aspergillosis. Indian J Hematol Blood Transfus 2017; 33:87-92. [PMID: 28194062 PMCID: PMC5280847 DOI: 10.1007/s12288-016-0653-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 02/02/2016] [Indexed: 02/08/2023] Open
Abstract
Aspergillus lateral-flow device (LFD) was recently introduced as a practical tool for the diagnosis of invasive aspergillosis (IA). We investigated the performance of Aspergillus-LFD as a point-of-care test for the diagnosis of IA. Serum samples were collected twice weekly from patients who received intensive chemotherapy for acute leukemia, or recepients of allogeneic stem cell transplantation. Aspergillus galactomannan (GM) antigen, 1,3-beta-d-glucan and Aspergillus-LFD tests were carried out according to manufacturers' recommendations. GM testing was repeated with a modified procedure which was proven to increase the sensitivity. Aspergillus-LFD was performed without applying any pretreatment procedure to allow the kit to fit as a point-of-care test. Fungal infections were categorized according to European Organization for Research and Treatment of Cancer/Invasive Fungal Infections Cooperative Group and the National Institute of Allergy and Infectious Diseases Mycoses Study Group (EORTC/MSG) criteria. A total of 75 neutropenia episodes in 64 patients were prospectively followed between February 2012 and January 2013. Probable IA was diagnosed in 11 patients, probable pulmonary fungal disease was diagnosed in one patient, and rhinocerebral aspergillosis was diagnosed in one patient. Fungemia was detected in two patients. Aspergillus-LFD was positive in serum of a patient with probable IA and in the bronchoalveolar lavage fluid of an other patient with probable IA. Aspergillus-LFD was false positive in serum of two patients. Although there was no radiological finding of IA or documented fungemia, fever resolved after empirical caspofungin therapy in one of these patients. The sensitivity of Aspergillus-LFD as a point-of-care test without any pretreatment of serum sample is low.
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Affiliation(s)
- Gökhan Metan
- 0000 0001 2331 2603grid.411739.9Departments of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- 0000 0001 2342 7339grid.14442.37Enfeksiyon Hastalıkları Anabilim Dalı, Hacettepe Üniversitesi Tıp Fakültesi, İç Hastalıkları Binası, Kat:1, Sıhhıye, 06100 Ankara, Turkey
| | - Muzaffer Keklik
- 0000 0001 2331 2603grid.411739.9Departments of Hematology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Gökçen Dinç
- 0000 0001 2331 2603grid.411739.9Departments of Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Çiğdem Pala
- 0000 0001 2331 2603grid.411739.9Departments of Hematology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Afra Yıldırım
- 0000 0001 2331 2603grid.411739.9Departments of Radiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Berkay Saraymen
- 0000 0001 2331 2603grid.411739.9Departments of Immunology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Kök-Biotechnics, Erciyes Technopark, Kayseri, Turkey
| | - Mustafa Yavuz Köker
- 0000 0001 2331 2603grid.411739.9Departments of Immunology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
- Kök-Biotechnics, Erciyes Technopark, Kayseri, Turkey
| | - Leylagül Kaynar
- 0000 0001 2331 2603grid.411739.9Departments of Hematology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Bülent Eser
- 0000 0001 2331 2603grid.411739.9Departments of Hematology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mustafa Çetin
- 0000 0001 2331 2603grid.411739.9Departments of Hematology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Metan G, Elmali F. The influence of the control group characteristics for the diagnostic performance of 1,3-beta-D-glucan in invasive aspergillosis. J Mycol Med 2016; 26:408-410. [PMID: 27663204 DOI: 10.1016/j.mycmed.2016.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 08/12/2016] [Accepted: 08/20/2016] [Indexed: 12/25/2022]
Affiliation(s)
- G Metan
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
| | - F Elmali
- Department of Biostatistics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Zarakolu P, Metan G, Ünal S, Karahan ZC, Tekeli A. Bacterial factors influencing the mortality for methicillin-resistant Staphylococcus aureus (MRSA) bacteremia. Infect Dis (Lond) 2016; 48:649-50. [PMID: 27167630 DOI: 10.1080/23744235.2016.1180710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Pınar Zarakolu
- a Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology , Hacettepe University , Ankara , Turkey
| | - Gökhan Metan
- a Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology , Hacettepe University , Ankara , Turkey
| | - Serhat Ünal
- a Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology , Hacettepe University , Ankara , Turkey
| | - Zeynep Ceren Karahan
- b Faculty of Medicine, Department of Medical Microbiology , Ankara University , Ankara , Turkey
| | - Alper Tekeli
- b Faculty of Medicine, Department of Medical Microbiology , Ankara University , Ankara , Turkey
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Metan G, Kaynar L, Yozgat N, Elmali F, Kurkcuoglu CA, Alp E, Cetin M. A change for the antibacterial treatment policy to decrease carbapenem consumption at a hematopoieteic stem cell transplant center. Antimicrob Resist Infect Control 2015. [PMCID: PMC4475158 DOI: 10.1186/2047-2994-4-s1-p175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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27
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Arıkan Akdağlı S, Azap A, Başaran Demirkazık F, Ener B, Aşcıoğlu Hayran S, Özdemir Kumbasar Ö, Metan G, Odabaşı Z, Uzun Ö, Akan H. Diagnosis of Invasive Fungal Diseases in Hematological Malignancies: A Critical Review of Evidence and Turkish Expert Opinion (TEO-2). Turk J Haematol 2015; 31:342-56. [PMID: 25541650 PMCID: PMC4454048 DOI: 10.4274/tjh.2014.0218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
One of the most problematic issues in hematological malignancies is the diagnosis of invasive fungal diseases. Especially, the difficulty of mycological diagnosis and the necessity of immediate intervention in molds have led to the adoption of “surrogate markers” that do not verify but rather strongly suggest fungal infection. The markers commonly used are galactomannan (GM), beta-glucan, and imaging methods. Although there are numerous studies on these diagnostic approaches, none of these markers serve as a support for the clinician, as is the case in human immunodeficiency virus (HIV) or cytomegalovirus (CMV) infections. This paper has been prepared to explain the diagnostic tests. As molecular tests have not been standardized and are not used routinely in the clinics, they will not be mentioned here.
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Ulu-Kilic A, Atalay MA, Metan G, Cevahir F, Koç N, Eser B, Çetin M, Kaynar L, Alp E. Saprochaete capitata as an emerging fungus among patients with haematological malignencies. Mycoses 2015; 58:491-7. [PMID: 26155743 DOI: 10.1111/myc.12347] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 05/20/2015] [Accepted: 05/27/2015] [Indexed: 02/05/2023]
Abstract
Saprochaete capitata is a very rare pathogen that causes invasive disease particularly in patients with haematological malignancies. We recognised a clustering of S. capitata fungaemia in recent years. So, we report our 6-year surveillance study of fungaemia among patients with haematological malignancies and haematopoietic stem cell transplant. We performed a retrospective and observational study. Hospitalised patients aged >18 years with haematological malignancies were included in the study. A total of 51 fungaemia episodes of 47 patients were analysed. The characteristics of fungaemia in patients with S. capitata compared to patients with candidemia. Median duration of neutropenia was 21.5 days in patients with S. capitata fungaemia, whereas this duration was significantly shorter in patients with candidemia (8 days). Interval between first and last positive culture was significantly longer in patients with S. capitata fungaemia (P < 0.05). Previous use of caspofungin was significantly more common in patients with S. capitata fungaemia. Thirty-day mortality was found 40% for patients with candidemia, whereas it was 39% for patients with S. capitata. In conclusion, despite its limitations this study showed that a novel and more resistant yeast-like pathogen become prevalent due to use of caspofungin in patients with long-lasting neutropenia which was the most noteworthy finding of this 6-year surveillance study.
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Affiliation(s)
- Aysegul Ulu-Kilic
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mustafa Altay Atalay
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Gökhan Metan
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Fatma Cevahir
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Nedret Koç
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Bülent Eser
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Mustafa Çetin
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Leyla Kaynar
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Emine Alp
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Metan G, Türe Z, Kaynar L, Berk E, Gürsoy Ş, Alp E, Kılıç H, Çetin M. Tigecycline for the treatment of Clostridium difficile infection refractory to metronidazole in haematopoietic stem cell transplant recipients. J Chemother 2015; 27:354-7. [PMID: 25407220 DOI: 10.1179/1973947814y.0000000225] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University , Kayseri, Turkey
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30
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Metan G, Pala Ç, Kaynar L, Cevahir F, Alp E. A nightmare for haematology clinics: extensively drug-resistant (XDR) Acinetobacter baumannnii. Infez Med 2014; 22:277-282. [PMID: 25551842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The purpose of our study was to share experience on demographic characteristics and clinical outcome of the patients infected with extensively drug-resistant Acinetobacter baumannii (XDRAB) in haematology clinics, focusing on the period with a sudden increase in the number of XDRAB cases. A regular patient-based infection control programme was set up in haematology clinics and haematopoietic stem cell transplant centre starting from 2008. An infection control nurse visited all patients daily. A form including demographic data and laboratory results were recorded for all patients. The source of infections was identified according to the criteria proposed by the Centers for Disease Control and Prevention. While haematology ward-acquired XRDAB was rare before 2012, between January 2012 and July 2013, 29 A. baumannii infection episodes were detected in 28 patients. All but one isolate were MDR and 72.4% (21 out of 29) were XDR. Blood cultures revealed A. baumannii in 26 out of 29 episodes. While the haematological malignancy was relapsing or not under remission in 15 patients, four patients were under remission, and 10 patients were newly diagnosed. The mortality rate was 81.2%. All patients with a poor outcome died in the first week after the index blood culture was performed. In 16 out of 29 episodes, the patients died before the culture results became available. Colistin was initiated for the treatment in 11 out of 29 episodes. Three patients received colistin combined with sulbactam or sulbactam containing beta-lactams; the remaining eight patients who received colistin monotherapy were already under carbapenems. In conclusion, XDRAB infections can easily become nightmares for haematology clinics without any reliable treatment option.
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Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology; Department of Haematology, Erciyes University Faculty of Medicine; Infection Control Unit, Erciyes University Hospital, Kayseri, Turkey
| | - Çiğdem Pala
- Department of Infectious Diseases and Clinical Microbiology; Department of Haematology, Erciyes University Faculty of Medicine; Infection Control Unit, Erciyes University Hospital, Kayseri, Turkey
| | - Leylagül Kaynar
- Department of Infectious Diseases and Clinical Microbiology; Department of Haematology, Erciyes University Faculty of Medicine; Infection Control Unit, Erciyes University Hospital, Kayseri, Turkey
| | - Fatma Cevahir
- Department of Infectious Diseases and Clinical Microbiology; Department of Haematology, Erciyes University Faculty of Medicine; Infection Control Unit, Erciyes University Hospital, Kayseri, Turkey
| | - Emine Alp
- Department of Infectious Diseases and Clinical Microbiology; Department of Haematology, Erciyes University Faculty of Medicine; Infection Control Unit, Erciyes University Hospital, Kayseri, Turkey
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Metan G, Türe Z, Pala Ç, Kaynar L, Yıldırım A, Elmalı F, Tutar N, Yozgat N, Eser B. A Single Center Experience for Antifungal Prophylaxis in Patients with Acute Myelogenous Leukemia. Indian J Hematol Blood Transfus 2014; 31:339-45. [PMID: 26085718 DOI: 10.1007/s12288-014-0472-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 10/24/2014] [Indexed: 11/25/2022] Open
Abstract
We aimed to provide real-life information about the effectivity of different types of primary antifungal prophylaxis (AFP) in patients with acute myeloid leukemia (AML). Records of AML patients who received remission-induction chemotherapy between June 2010 and February 2013 were retrospectively reviewed. A total of 85 AML remission-induction chemotherapy cycles were identified in 80 patients. Fluconazole prophylaxis (FP) was administered in 29 cycles, and posaconazole prophylaxis was given in 56 cycles. Failure in the AFP was observed in 45 (57.9 %) out of 85 cycles. Any type of invasive fungal diseases were detected in 15 (26.8 %) out of 56 cycles receiving posaconazole and 15 (51.7 %) out of 29 cycles receiving fluconazole (p = 0.023). Relapsing or refractory AML, longer duration of neutropenia and FP were more common in patients with AFP failure. Multivariate logistic regression analysis showed that type of AFP (odds ratio (OR) 3.63; 95 % confidence interval (CI) 1.19-11.07), presence of neutropenia longer than 21 days (OR 3.96; 95 % CI 1.36-11.46), and refractory or relapsing AML (OR 6.09; 95 % CI 2.09-17.73) were independent factors associated with failure of AFP. We observed superiority of posaconazole on fluconazole in the prophylaxis of AML patients receiving remission-induction chemotherapy.
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Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases and Clinical Microbiology, Gevher Nesibe Hastanesi, Enfeksiyon Hastaliklari Klinigi, Erciyes Universitesi Tip Fakultesi, Kat:10 Talas Yolu, 38039 Kayseri, Turkey
| | - Zeynep Türe
- Department of Infectious Diseases and Clinical Microbiology, Gevher Nesibe Hastanesi, Enfeksiyon Hastaliklari Klinigi, Erciyes Universitesi Tip Fakultesi, Kat:10 Talas Yolu, 38039 Kayseri, Turkey
| | - Çiğdem Pala
- Department of Hematology, Erciyes University, Kayseri, Turkey
| | - Leylagül Kaynar
- Department of Hematology, Erciyes University, Kayseri, Turkey
| | - Afra Yıldırım
- Department of Radiology, Erciyes University, Kayseri, Turkey
| | - Ferhan Elmalı
- Department of Biostatistics, Erciyes University, Kayseri, Turkey
| | - Nuri Tutar
- Department of Chest Diseases, Erciyes University, Kayseri, Turkey
| | - Nuran Yozgat
- Hospital Pharmacy Unit, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Bülent Eser
- Department of Hematology, Erciyes University, Kayseri, Turkey
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Kalın G, Metan G, Demiraslan H, Doganay M. Feasibility of a new clinical severity scoring index for Crimean-Congo Hemorrhagic fever. J Chemother 2014; 27:353. [PMID: 25360564 DOI: 10.1179/1973947814y.0000000221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Gamze Kalın
- Department of Clinical Microbiology and Infectious Diseases, Yozgat State Hospital , Turkey
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Ascough S, Ingram RJ, Chu KK, Reynolds CJ, Musson JA, Doganay M, Metan G, Ozkul Y, Baillie L, Sriskandan S, Moore SJ, Gallagher TB, Dyson H, Williamson ED, Robinson JH, Maillere B, Boyton RJ, Altmann DM. Anthrax lethal factor as an immune target in humans and transgenic mice and the impact of HLA polymorphism on CD4+ T cell immunity. PLoS Pathog 2014; 10:e1004085. [PMID: 24788397 PMCID: PMC4006929 DOI: 10.1371/journal.ppat.1004085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 03/07/2014] [Indexed: 11/23/2022] Open
Abstract
Bacillus anthracis produces a binary toxin composed of protective antigen (PA) and one of two subunits, lethal factor (LF) or edema factor (EF). Most studies have concentrated on induction of toxin-specific antibodies as the correlate of protective immunity, in contrast to which understanding of cellular immunity to these toxins and its impact on infection is limited. We characterized CD4+ T cell immunity to LF in a panel of humanized HLA-DR and DQ transgenic mice and in naturally exposed patients. As the variation in antigen presentation governed by HLA polymorphism has a major impact on protective immunity to specific epitopes, we examined relative binding affinities of LF peptides to purified HLA class II molecules, identifying those regions likely to be of broad applicability to human immune studies through their ability to bind multiple alleles. Transgenics differing only in their expression of human HLA class II alleles showed a marked hierarchy of immunity to LF. Immunogenicity in HLA transgenics was primarily restricted to epitopes from domains II and IV of LF and promiscuous, dominant epitopes, common to all HLA types, were identified in domain II. The relevance of this model was further demonstrated by the fact that a number of the immunodominant epitopes identified in mice were recognized by T cells from humans previously infected with cutaneous anthrax and from vaccinated individuals. The ability of the identified epitopes to confer protective immunity was demonstrated by lethal anthrax challenge of HLA transgenic mice immunized with a peptide subunit vaccine comprising the immunodominant epitopes that we identified. Anthrax is of concern with respect to human exposure in endemic regions, concerns about bioterrorism and the considerable global burden of livestock infections. The immunology of this disease remains poorly understood. Vaccination has been based on B. anthracis filtrates or attenuated spore-based vaccines, with more recent trials of next-generation recombinant vaccines. Approaches generally require extensive vaccination regimens and there have been concerns about immunogenicity and adverse reactions. An ongoing need remains for rationally designed, effective and safe anthrax vaccines. The importance of T cell stimulating vaccines is inceasingly recognized. An essential step is an understanding of immunodominant epitopes and their relevance across the diverse HLA immune response genes of human populations. We characterized CD4 T cell immunity to anthrax Lethal Factor (LF), using HLA transgenic mice, as well as testing candidate peptide epitopes for binding to a wide range of HLA alleles. We identified anthrax epitopes, noteworthy in that they elicit exceptionally strong immunity with promiscuous binding across multiple HLA alleles and isotypes. T cell responses in humans exposed to LF through either natural anthrax infection or vaccination were also examined. Epitopes identified as candidates were used to protect HLA transgenic mice from anthrax challenge.
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Affiliation(s)
- Stephanie Ascough
- Department of Medicine, Imperial College London, London, United Kingdom
| | - Rebecca J. Ingram
- Centre for Infection and Immunity, Queen's University Belfast, Belfast, United Kingdom
| | - Karen K. Chu
- Department of Medicine, Imperial College London, London, United Kingdom
| | | | - Julie A. Musson
- Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Mehmet Doganay
- Department of Infectious Disease, Erciyes University Hospital, Kayseri, Turkey
| | - Gökhan Metan
- Department of Infectious Disease, Erciyes University Hospital, Kayseri, Turkey
| | - Yusuf Ozkul
- Department of Medical Genetics, Erciyes University Hospital, Kayseri, Turkey
| | - Les Baillie
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | | | - Stephen J. Moore
- BIOMET, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Theresa B. Gallagher
- BIOMET, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Hugh Dyson
- Defence Science Technology Laboratory, Porton Down, Salisbury, United Kingdom
| | - E. Diane Williamson
- Defence Science Technology Laboratory, Porton Down, Salisbury, United Kingdom
| | - John H. Robinson
- Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Bernard Maillere
- CEA, iBiTecS, Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), Gif Sur Yvette, France
| | | | - Daniel M. Altmann
- Department of Medicine, Imperial College London, London, United Kingdom
- * E-mail:
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Abstract
The role of ribavirin in the treatment of Crimean-Congo hemorrhagic fever (CCHF) is scarce. We retrospectively reviewed treatment features of 81 hospitalized patients with laboratory confirmed CCHF between January 2007 and December 2010. The median age of the patients was 45 years and 47 were male. Out of 81 patients, 6 received ribavirin. Demographic characteristics and laboratory findings of the patients who received ribavirin were not different from the patients who did not receive antiviral. There were no statistically significant difference in duration of symptoms before admission (P = 0·47) between the two groups. Of the patients, 29 who did not receive ribavirin and four from the ribavirin treated group had severe disease based on the Swanpoel criteria (P = 0·22). Two patients from each group died. There was no statistically significant difference in case fatality (P = 0·14) and duration of hospitalization (P = 0·11). Treatment of CCHF without ribavirin seems to be safe based on the findings of this study.
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Ben-Ami R, Halaburda K, Klyasova G, Metan G, Torosian T, Akova M. A multidisciplinary team approach to the management of patients with suspected or diagnosed invasive fungal disease. J Antimicrob Chemother 2013; 68 Suppl 3:iii25-33. [DOI: 10.1093/jac/dkt390] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Kaynar L, Metan G, Gökahmetoğlu S, Kurnaz F, Mumcuoğlu H, Öztürk A, Şıvgın S, Pala C, Yıldız O, Eser B, Ünal A, Çetin M. Can low-dose preemptive valganciclovir replace standard intravenous ganciclovir treatment in recipients of allogeneic stem cell transplantation? J Chemother 2013; 25:286-91. [PMID: 24070136 DOI: 10.1179/1973947813y.0000000082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The aim of this retrospective study was to compare the efficacy and safety of standard intravenous ganciclovir (GCV) with low-dose oral valganciclovir (VGC) in preemptive treatment of cytomegalovirus (CMV) infection in patients who received allogeneic stem cell transplantation (ASCT). Fifty-nine adult ASCT patients with asymptomatic 68 CMV reactivations were included. For preemptive CMV treatment, VGC (900 mg/day) in 44 reactivations or GCV (5 mg/kg twice daily during the first week and once daily afterwards) in 24 CMV reactivations were administered for 21 days. Two consecutive negative results for PCR and/or CMV antigenemia were considered as treatment success. All patients with CMV reactivations were on immunosuppressive treatment. While no positivity was identified in any of the patients who received GCV on day 21, low-titer CMV positivity was noted in three of the patients in the VGC group (P = 0·264). In all three patients, VGC was continued at same dose and no positivity result was detected after 2-3 weeks. Low-grade neutropenia and high grade thrombocytopenia were significantly higher in the GCV group than in the VGC group (P = 0·018 and P = 0·04 respectively). Preemptive strategy of oral low-dose VGC appears preferable to the prevention of CMV disease in ASCT. These results require confirmation in prospective larger clinical studies.
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Ates O, Metan G, Dundar T, Kiziltepe M, Kocyigit I, Unal A, Sipahioglu M, Oymak O, Tokgoz B. Diagnosis of Aspergillus niger peritonitis in a peritoneal dialysis patient by peritoneal galactomannan and β-D-glucan detection. Perit Dial Int 2013; 33:216-8. [PMID: 23478377 DOI: 10.3747/pdi.2012.00042] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
Brucellosis is a worldwide zoonosis caused by Brucella species. The disease remains a significant economic and public health problem particularly in the Mediterranean countries. Clinical manifestations of brucellosis are variable and often nonspecific, simulating infectious and noninfectious diseases. Osteoarticular involvement is the most common focal complication of brucellosis and morbidity. Mortality rate due to brucellosis is low, mostly secondary to endocarditis and central nerve involvement of disease. The diagnosis of brucellosis depends on the clinical presentations and laboratory tests. Detection of Brucella species by culture method is sometimes unsuccessful; therefore, serological tests are preferred. These tests are easy to perform, and results can be obtained within a short span of time. Several serologic tests have been developed for the diagnosis of human brucellosis, including the standard agglutination tube (SAT) test, anti-human globulin (Coombs) test, indirect fluorescence antibody (IFA) test, and enzyme-linked immunosorbent assay (ELISA). SAT is the primary test used in many clinical laboratories. IFA and ELISA are simple and reliable for the detection of immunoglobulin classes especially in complicated cases. Polymerase chain reaction (PCR) technique is highly sensitive and specific for the determination of Brucella spp. from peripheral blood and other tissues. Recent patents are especially based on molecular assays in the diagnosis of brucellosis. However, PCR is still expensive and may not be appropriate for daily practice.
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Affiliation(s)
- Aysegul Ulu-Kilic
- Department of Infectious Disease and Microbiology, Erciyes University, Faculty of Medicine, 38039 Kayseri/Turkey.
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Ingram RJ, Harris A, Ascough S, Metan G, Doganay M, Ballie L, Williamson ED, Dyson H, Robinson JH, Sriskandan S, Altmann DM. Exposure to anthrax toxin alters human leucocyte expression of anthrax toxin receptor 1. Clin Exp Immunol 2013; 173:84-91. [PMID: 23607659 DOI: 10.1111/cei.12090] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2013] [Indexed: 12/12/2022] Open
Abstract
Anthrax is a toxin-mediated disease, the lethal effects of which are initiated by the binding of protective antigen (PA) with one of three reported cell surface toxin receptors (ANTXR). Receptor binding has been shown to influence host susceptibility to the toxins. Despite this crucial role for ANTXR in the outcome of disease, and the reported immunomodulatory consequence of the anthrax toxins during infection, little is known about ANTXR expression on human leucocytes. We characterized the expression levels of ANTXR1 (TEM8) on human leucocytes using flow cytometry. In order to assess the effect of prior toxin exposure on ANTXR1 expression levels, leucocytes from individuals with no known exposure, those exposed to toxin through vaccination and convalescent individuals were analysed. Donors could be defined as either 'low' or 'high' expressers based on the percentage of ANTXR1-positive monocytes detected. Previous exposure to toxins appears to modulate ANTXR1 expression, exposure through active infection being associated with lower receptor expression. A significant correlation between low receptor expression and high anthrax toxin-specific interferon (IFN)-γ responses was observed in previously infected individuals. We propose that there is an attenuation of ANTXR1 expression post-infection which may be a protective mechanism that has evolved to prevent reinfection.
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Affiliation(s)
- R J Ingram
- Section of Infectious Diseases and Immunity, Department of Medicine Imperial College, Hammersmith Hospital, London
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Metan G, Demiraslan H, Kaynar LG, Zararsız G, Alp E, Eser B. Factors influencing the early mortality in haematological malignancy patients with nosocomial Gram negative bacilli bacteraemia: a retrospective analysis of 154 cases. Braz J Infect Dis 2013; 17:143-9. [PMID: 23485438 PMCID: PMC9427368 DOI: 10.1016/j.bjid.2012.09.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 08/09/2012] [Accepted: 09/26/2012] [Indexed: 11/24/2022] Open
Abstract
Background The aim of this study is to assess the factors influencing the early mortality (7-day after index blood culture) in haematological malignancy patients with Gram negative bacilli (GNB) bacteraemia. Methods Infection control committee records were reviewed to identify the cases between March 2006 and June 2011. Only one bacteraemic episode per patient was included in the study. Results A total of 154 patients with GNB bacteraemia were identified. The early mortality rate was 19.5% (30 out of 154). Blood cultures revealed Enterobacteriacea in 120 patients (Escherichia coli; 86, Klebsiella spp.; 28, Enterobacter cloacea; 6) and glucose non-fermenting GNB in 34 patients (Pseudomonas aeruginosa; 15, Acinetobacter baumannii; 11, Stenotrophomonas maltophilia; 7, Burkholderia cepacia; 1). Forty (33.3%) out of 120 Enterobacteriaceae were extended spectrum beta-lactamase (ESBL) producers and 18 (52.9%) out of 34 glucose non-fermenting GNB were multidrug resistant. Carbapenems were administered as first line therapy in 139 out of 154 patients. In univariate analysis Pitt's bacteraemia score, presence of aplastic anaemia, bacteraemia caused by glucose non-fermentating GNB, inappropriate empirical antibacterial treatment, presence of severe sepsis or septic shock, unable to achieve microbiological cure, and intensive care unit (ICU) acquired bacteraemia were associated with mortality. Multivariate analysis showed ICU acquired bacteraemia (OR, 12.55; 95% CI, 2.34–67.38, p = 0.003) as an independent factor associated with early mortality. Conclusion Haematological malignancy patients who require ICU care are at high risk for early mortality related to GNB bacteraemia. Based on the local findings pointing out high rate of multidrug resistance, carbapenems combined with colistin seems to be a reasonable approach as empirical treatment of these patients. However, increasing carbapenem resistance rate is of concern.
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Metan G, Koç AN, Kaynar LG, Atalay A, Oztürk A, Eser B, Cetin M. What is the role of the (1→3)-β-D-glucan assay in the screening of patients undergoing autologous haematopoietic stem-cell transplantation? Mycoses 2013; 56:34-8. [PMID: 22497588 DOI: 10.1111/j.1439-0507.2012.02195.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The aim of this study is to determine the clinical contribution of (1→3)-β-d-glucan (BDG) screening in the case of patients undergoing autologous haematopoietic stem-cell transplantation (HSCT). The records at our stem-cell transplantation centre were reviewed to identify the patients who underwent autologous HSCT between April 2009 and December 2010. Patients were classified as having proven invasive aspergillosis (IA), probable IA, or possible IA on the basis of the criteria established by the European Organization for Research and Treatment of Cancer and Mycoses Study Group (independent of the BDG results). During the study period, the patients were screened for BDG twice a week from transplant (day 0) until engraftment. Three patients were diagnosed with probable IA and five were diagnosed with possible IA. A total of 354 serum samples from 79 patients who met the study inclusion criteria were used for statistical analysis. At the cut-off value of 80 pg ml(-1) , the sensitivity was 27.2% [95% confidence interval (CI); 7.3-60.6]; specificity, 94.4% (95% CI; 91.3-96.5); positive predictive value, 6.2%; and negative predictive, 93.7%. The clinical contribution of the BDG assay as a screening test was relatively limited in this cohort of patients undergoing autologous HSCT.
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Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
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Metan G. The interaction between piperacillin–tazobactam and Aspergillus galactomannan antigenemia assay: is the story over? Infection 2012; 41:293-4. [DOI: 10.1007/s15010-012-0327-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 08/20/2012] [Indexed: 11/28/2022]
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Uysal B, Metan G. Bradycardia in a patient with Crimean-Congo hemorrhagic fever related to ribavirin treatment. J Vector Borne Dis 2012; 49:193-194. [PMID: 23135017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Affiliation(s)
- Burcu Uysal
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Erciyes University, Kayseri, Turkey
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Metan G, Nedret Koc A, Ağkuş Ç, Kaynar LG, Alp E, Eser B. Can bacteraemia lead to false positive results in 1,3-beta-d-glucan test? Analysis of 83 bacteraemia episodes in high-risk patients for invasive fungal infections. Rev Iberoam Micol 2012; 29:169-71. [DOI: 10.1016/j.riam.2011.07.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Revised: 07/03/2011] [Accepted: 07/29/2011] [Indexed: 10/17/2022] Open
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Ascough S, Ingram RJ, Metan G, Maillere B, Doganay M, Ozkul Y, Kim LU, Ballie L, Moore S, Huwar TB, Sriskandan S, Altmann DM. Comment on “Frequency of Epitope-Specific Naive CD4+ T Cells Correlates with Immunodominance in the Human Memory Repertoire”. J I 2012; 188:5205-6; author reply 5206. [DOI: 10.4049/jimmunol.1290018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kayabas U, Karahocagil M, Ozkurt Z, Metan G, Parlak E, Bayindir Y, Kalkan A, Akdeniz H, Parlak M, Simpson A, Doganay M. Naturally Occurring Cutaneous Anthrax: Antibiotic Treatment and Outcome. Chemotherapy 2012; 58:34-43. [DOI: 10.1159/000335593] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
<i>Objectives:</i> Cutaneous anthrax (CA) is the most common clinical presentation in human anthrax, but the duration of antibiotic therapy in naturally occurring CA is controversial. The aim of this study was to compare the clinical outcomes of patients receiving antibiotic treatment for either 3-5 days (group 1) or 7-10 days (group 2) in uncomplicated CA. <i>Methods:</i> A total of 66 patients were enrolled; 29 (44%) in group 1 and 37 (56%) in group 2. Infections were classified as mild (n = 22, 33%) or severe (n = 44, 67%) CA. <i>Results:</i> There were no significant differences between the groups in symptom resolution time, fever clearance time, healing of lesions, development and healing of eschars, requirement for surgical intervention or the development of complications. Both edema resolution time and duration of hospital stay were longer in group 2. There were no therapeutic failures, relapses or deaths in either group. Steroid therapy was used in 32% of patients with severe CA, but a beneficial effect on resolution of edema was not demonstrated. <i>Conclusions:</i> These results suggest that short-course antibiotic therapy is as effective as standard-duration therapy in uncomplicated CA and that steroid therapy may not be effective.
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Metan G, Koç AN, Atalay A, Kaynar LG, Ozturk A, Alp E, Eser B. What should be the optimal cut-off of serum 1,3-β-D-glucan for the detection of invasive pulmonary aspergillosis in patients with haematological malignancies? ACTA ACUST UNITED AC 2011; 44:330-6. [PMID: 22188426 DOI: 10.3109/00365548.2011.638319] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The detection of 1,3-β-d-glucan (BDG), a cell wall component of several medically important fungi, is a promising tool for the diagnosis of invasive pulmonary aspergillosis. The aim of this study was to evaluate the diagnostic accuracy of the BDG test in invasive pulmonary aspergillosis (IPA) by focusing on the optimal cut-off value. METHODS The records of the Infection Control Committee were reviewed to identify patients with haematological malignancies and stem cell transplantation who had at least 1 BDG (Fungitell kit) measurement during the period January 2008 through April 2011. The European Organization for Research and Treatment of Cancer and the Mycoses Study Group (EORTC/MSG) criteria (independent of BDG results) were used to categorize the patients with IPA. Patients with possible IPA were not included in the study. RESULTS A total of 128 patients (50 with proven or probable IPA) were included in the study. At the manufacturer's recommended cut-off value of 80 pg/ml, the sensitivity of BDG was 66% (95% CI 51.2-78.7), specificity 75.6% (95% CI 64.6-84.5), positive predictive value (PPV) 63.4%, and negative predictive value (NPV) 77.6%. A receiver operating characteristic (ROC) curve was constructed to define the optimum serum BDG cut-off for the diagnosis of IPA. At a cut-off value of 181 pg/ml, the sensitivity was 52% (95% CI 37.4-66.3), specificity 94.8% (95% CI 87.4-98.6), PPV 86.7%, and NPV 75.5%. CONCLUSIONS Although higher cut-off levels increased the specificity of the BDG test, sensitivity decreased to an unacceptable level; the commercially recommended cut-off value appears to be appropriate for screening purposes.
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Affiliation(s)
- Gökhan Metan
- Department of Infectious Diseases, Faculty of Medicine, Erciyes University, Kayseri, Turkey.
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Akdur O, Ozkan S, Durukan P, Koyuncu M, Ikizceli I, Metan G. A forgotten diagnosis in emergency department: tetanus. BRATISL MED J 2011; 112:469-471. [PMID: 21863620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Tetanus is a serious and acute life-threatening disease caused by toxins of "Clostridium tetani". Although it is generally a disease of developing countries, its lower incidence is encountered also in developed countries. Since the principal treatment of this disease is known to be based on vaccination and wound care, the emergency physicians play a key role in its management. MATERIAL AND METHOD In the present study, we reviewed its uncommon clinical course along with demographic and clinical features of five cases that have presented with various complaints to our Emergency Department. Presenting signs, demographic features, injury history, and the time from the occurrence of injury to the beginning of symptoms were evaluated. RESULTS Four of five cases were female. The mean age of cases was 56.8 (34-73). Three of them had hand injury, one had foot injury, and the fifth case had facial injury. The initial symptoms included difficult jaw movement, back muscle spasm, and pain. Two cases died. CONCLUSION Tetanus cases may present to ED with different symptoms. Therefore, physicians should be aware of the early signs of tetanus. Careful and meticulous wound management of cases presented to ED following an injury should be considered a significant factor, which can help in reducing the tetanus cases (Tab. 2, Ref. 18).
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Affiliation(s)
- O Akdur
- Department of Emergency Medicine, Erciyes University Faculty of Medicine, Kayseri, Turkey.
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Metan G, Alp E, Yildiz O, Percin D, Aygen B, Sumerkan B. Clinical Experience with Tigecycline in the Treatment of Carbapenem-Resistant AcinetobacterInfections. J Chemother 2010; 22:110-114. [DOI: 10.1179/joc.2010.22.2.110] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Metan G, Ağkuş Ç, Buldu H, Koç AN. The interaction between piperacillin/tazobactam and assays for Aspergillus galactomannan and 1,3-beta-d-glucan in patients without risk factors for invasive fungal infections. Infection 2010; 38:217-21. [DOI: 10.1007/s15010-010-0003-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Accepted: 01/12/2010] [Indexed: 10/19/2022]
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