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Genc AC, Karabay O, Güçlü E, Çalıca Utku A, Vatan A, Tuna N, Budak G, Şimşek A, Uzun C, Alan S, Okan HD, Genc FT, Öğütlü A. New Prognostic Parameter of West Nile Virus: Platelet Distribution Width. Vector Borne Zoonotic Dis 2024; 24:166-171. [PMID: 37824783 DOI: 10.1089/vbz.2023.0056] [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] [Indexed: 10/14/2023] Open
Abstract
Background: West Nile virus (WNV) infection is a viral disease caused by arboviruses. It can cause epidemics of febrile diseases and meningoencephalitis, especially at the end of the summer season. In this study, we aimed to determine the risk factors of WNV encephalitis with a case-control study of the patients followed in our clinic. Materials and Methods: Among the patients who applied to our hospital with sudden onset fever, headache, myalgia, nausea, vomiting, maculopapular rash, viral meningitis, or encephalitis findings in late summer and early autumn, those diagnosed with positive WNV PCR and antibody tests were defined as WNV cases. In the same date range, patients with clinically compatible but negative serological and PCR tests for WNV in our hospital were considered as the control group. Results: WNV infection was diagnosed in 26 of 48 patients who were examined with a preliminary diagnosis of WNV infection, and the other 22 patients were considered as the control group. A statistically significant difference was found between the two groups in C-reactive protein, procalcitonin, 1-h erythrocyte sedimentation rate, alkaline phosphatase, platelet, and platelet distribution width (PDW). PDW >17.85% indicated WNV infection with 82% sensitivity and 91% specificity. PDW percentage >17.85 increased the risk of WNV infection by 6.1 times. The power of the study was calculated as 83%. Conclusion: The most common findings in WNV cases were fever and confusion. WNV infection should be considered in the differential diagnosis in patients with fever and confusion in September and October in settlements on the migration route of birds. The percentage of PDW in whole blood examination can guide the differential diagnosis of WNV cases.
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Affiliation(s)
- Ahmed Cihad Genc
- Department of Internal Medicine, Hendek State Hospital, Sakarya, Turkey
| | - Oğuz Karabay
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Ertuğrul Güçlü
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Aylin Çalıca Utku
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Aslı Vatan
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Nazan Tuna
- Department of Infectious Diseases and Clinical Microbiology, Namık Kemal University Faculty of Medicine, Tekirdağ, Turkey
| | - Gökçen Budak
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Adem Şimşek
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Cem Uzun
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Sevgi Alan
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | - Hüseyin Doğuş Okan
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
| | | | - Aziz Öğütlü
- Department of Infectious Diseases and Clinical Microbiology, Sakarya University Faculty of Medicine, Sakarya, Turkey
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Güçlü E, Kocayiğit H, Okan HD, Erkorkmaz U, Yürümez Y, Yaylacı S, Koroglu M, Uzun C, Karabay O. Effect of COVID-19 on platelet count and its indices. ACTA ACUST UNITED AC 2020; 66:1122-1127. [PMID: 32935808 DOI: 10.1590/1806-9282.66.8.1122] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Easily accessible, inexpensive, and widely used laboratory tests that demonstrate the severity of COVID-19 are important. Therefore, in this study, we aimed to investigate the relationship between mortality in COVID-19 and platelet count, Mean Platelet Volume (MPV), and platelet distribution width. METHODS In total, 215 COVID-19 patients were included in this study. The patients were divided into two groups. Patients with room air oxygen saturation < 90% were considered as severe COVID-19, and patients with ≥90% were considered moderate COVID-19. Patient medical records and the electronic patient data monitoring system were examined retrospectively. Analyses were performed using the SPSS statistical software. A p-value <0.05 was considered significant. RESULTS The patients' mean age was 64,32 ± 16,07 years. According to oxygen saturation, 81 patients had moderate and 134 had severe COVID-19. Our findings revealed that oxygen saturation at admission and the MPV difference between the first and third days of hospitalization were significant parameters in COVID-19 patients for predicting mortality. While mortality was 8.4 times higher in patients who had oxygen saturation under 90 % at hospital admission, 1 unit increase in MPV increased mortality 1.76 times. CONCLUSION In addition to the lung capacity of patients, the mean platelet volume may be used as an auxiliary test in predicting the mortality in COVID-19 patients.
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Affiliation(s)
- Ertuğrul Güçlü
- . Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Havva Kocayiğit
- . Sakarya University Training and Research Hospital, Division of Anesthesiology, Sakarya, Turkey
| | - Hüseyin Doğuş Okan
- . Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Unal Erkorkmaz
- . Sakarya University Faculty of Medicine, Department of Biostatistics, Sakarya, Turkey
| | - Yusuf Yürümez
- . Sakarya University Faculty of Medicine, Department of Emergency Medicine, Sakarya, Turkey
| | - Selcuk Yaylacı
- . Sakarya University Faculty of Medicine, Department of Internal Medicine, Sakarya, Turkey
| | - Mehmet Koroglu
- . Sakarya University Faculty of Medicine, Department of Medical Microbiology, Sakarya, Turkey
| | - Cem Uzun
- . Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Oğuz Karabay
- . Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
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Abstract
Background The first case of a novel coronavirus (COVID-19) infection was detected in Wuhan, fever and respiratory symptoms have been frequently reported in patients infected with this virus. Aim It was aimed to compare the symptoms of patients with COVID-19 positivity and patients without COVID-19 positivity hospitalized with suspicion of COVID-19. Methods Patients presenting to the Sakarya University Training and Research Hospital with suspicion of COVID-19 were included in the study. Samples were obtained from the patients and PCR tests were performed; the patients were grouped as COVID-19 positive and COVID-19 negative; these two groups were questioned for 15 symptoms and the results were compared. Results A total of 297 patients with suspicion of COVID-19 were included in the study. COVID-19 was positive in 143 patients and negative in 154 patients. The most common symptoms in the COVID-19 positive group were: cough (56.6%), weakness (56.6%), taste disorder (35.7%), myalgia (34.3%), and fever (33.6%); and in the COVID-19 negative group: cough (63%), weakness (45.5%), dyspnea (29.9%), headache (27.3%) and fever (24.7%). When these two groups were compared, taste disorder, smell disorder and diarrhea were significantly higher in the COVID-19 positive group (p = <0,00001, p = 0,00001 and p = 0,02). Conclusion Our study showed that taste and smell disorders and diarrhea were important markers in COVID-19 infection.
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Affiliation(s)
- Aylin Çalıca Utku
- Specialist Doctor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Gökçen Budak
- Specialist Doctor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Oğuz Karabay
- Professor Doctor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Ertuğrul Güçlü
- Associate Professor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Hüseyin Doğuş Okan
- Specialist Doctor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Aslı Vatan
- Specialist Doctor of Infectious Disease and Clinical Microbology, Department of Infectious Diseases and Clinical Microbiology, Sakarya University Training and Research Hospital, Sakarya, Turkey
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Karabay O, Güçlü E, Şimşek A, Okan HD, Öğütlü A, Coşgun Y, Menemenlioğlu D. [Travel Related Fever and Rash: Two Cases of Dengue Fever]. MIKROBIYOL BUL 2019; 53:348-353. [PMID: 31414637 DOI: 10.5578/mb.68050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
The frequency of travel-related infections in the world has increased due to the easily and widespread use of travel facilities in the 21st century. Vector-borne diseases are an important part of infectious diseases. Dengue fever is one of the travel-related infections that has been reported increasingly in recent years through the development of diagnostic methods. The aim of this report was to present two Dengue fever cases originating from travel. There was a story of mosquito bite during a trip to Sri Lanka travel in our first case. The patient was 30 years old and maculopapular rash appeared on the fifth day of contact. Three days after the onset of the rash, she has admitted to our clinic, complaining with fever and chills. Increased leukopenia and muscle enzymes were detected in the laboratory analysis. Real-time reverse transcriptase polimerase chain reaction (RT-PCR) was positive in the serum sample. The patient was followed up with supportive care and discharged by improvement. The second case, a 24-year-old male, had a story of mosquito bite during his trip to Malaysia. After the patient complained of fever, chills, fever, nausea, vomiting and muscle pain, the Dengue virus (DENV) NS1 antigen test performed in this country was found to be positive. In the second case, there was no maculopapular rash and laboratory analysis showed an increase in leukopenia, thrombocytopenia and muscle enzymes. RT-PCR positivity was detected in the serum sample. The patient was followed up with supportive treatment and discharged with cure. DENV infections are caused by DENV which is common in the tropical areas of the world. There are four DENV-1, DENV-2, DENV-3 and DENV-4 serotypes. DENV infections can present different clinical manifestations such as asymptomatic disease, viral syndrome, Dengue haemorrhagic fever, and Dengue shock syndrome. Dengue fever is often accompanied by arthritis, maculopapular rash and high fever. Our cases were defined as Dengue fever according to this definition. In the diagnosis of the disease, it is necessary first to be suspicious of the disease and the travel history must be questioned. In the definitive diagnosis, virus isolation, antigen, nucleic acid detection and serological tests are used. The virus can be isolated from blood, serum, urine and tissues. In the first five days after beginning of the symptoms associated with DENV infections, serum RT-PCR and Dengue NS1 antigen test may be positive.
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Affiliation(s)
- Oğuz Karabay
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Ertuğrul Güçlü
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Adem Şimşek
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Hüseyin Doğuş Okan
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Aziz Öğütlü
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
| | - Yasemin Coşgun
- Public Health General Directorate of Turkey, Department of Microbiology Reference and Biological Products Laboratories, National Arboviruses and Viral Zoonoses Laboratory, Ankara, Turkey
| | - Dilek Menemenlioğlu
- Sakarya University Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Sakarya, Turkey
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