Melda Türken

Prof. Dr. Melda Türken

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in The Eurasian Journal of Medicine
Verified
Journal Article
Open access
ATAysin Kilinc Toker
Aysin Kilinc Toker
SKSukran Kose
Sukran Kose
MTMelda Türken
Melda Türken
Objective: Sepsis has been defined as a life-threatening organ dysfunction that develops as a result of impaired host response to infection. This study aimed to investigate sequential organ failure assessment (SOFA) score, systemic inflammatory response syndrome (SIRS), quick SOFA (qSOFA), and qSOFA + lactate criteria (qSOFA+L) in the diagnosis and prognosis of sepsis. Materials and Methods: A retrospective study was performed that included all patients diagnosed with sepsis between January 1, 2013 and December 31, 2017 in Izmir Tepecik Training and Research Hospital Infectious Diseases and Clinical Microbiology Clinic. Results: A total of 976 patients diagnosed with sepsis (mean age 72.5±13.7 years, 52.7% women) over five years were included in this study. Of all patients admitted to the emergency department and diagnosed with sepsis, 37.4% (n=365) were hospitalized and 52.3% (n=191) of these patients died. Emergency department mortality was 12.5% (n=122). The mortality rate was higher in patients with qSOFA and qSOFA+L criteria ≥2 in the emergency department. There was no statistically significant difference in terms of SIRS, qSOFA, or qSOFA+L criteria among patients who died in the hospital. The SOFA score (area under receiver operator characteristic curve, AUC=0.89) was highly discriminative in predicting sepsis. When the SOFA score was>11, its sensitivity and negative predictive values were both 100%. The SOFA score (AUC=0.75 and 0.72, respectively) was also highly discriminative in predicting emergency and in-hospital mortality. When the SOFA score was>11, the sensitivity and specificity of predicting emergency department mortality were 63.5% and 78.8%, respectively. The sensitivity was 65.8% and the specificity was 75.5% when describing in-hospital mortality for SOFA scores>9. Conclusion: The SOFA score was highly sensitive and predictive in the diagnosis of sepsis. The SOFA score had a high discriminative ability to predict emergency and in-hospital mortality. Cite this article as: Kilinc Toker A, Kose S, Turken M. Comparison of SOFA Score, SIRS, qSOFA, and qSOFA + L Criteria in the Diagnosis and Prognosis of Sepsis. Eurasian J Med 2021; 53(1): 40-7.

1 January 2020 in The Anatolian Journal of General Medical Research
Verified
Journal Article
Closed access
MTMelda Türken
Melda Türken
ŞKŞükran Köse
Şükran Köse

1 December 2019 in Revista da Associação Médica Brasileira
Verified
Journal Article
Open access
PDF file
BTBENGU TATAR
BENGU TATAR
ŞKŞükran Köse
Şükran Köse
NENadide Ergün
Nadide Ergün
MTMelda Türken
Melda Türken
YOYusuf Onlen
Yusuf Onlen
SILA AKHANSILA AKHAN
SILA AKHAN
SUMMARY OBJECTIVE The recent development of direct-acting antiviral agents (DAAs) has dramatically changed the treatment of chronic hepatitis C, and interferon-based regimes have become a poor treatment choice in clinical practice. Today DAAs offer shorter, well-tolerated, highly effective curative therapies. This study aimed to evaluate the effectiveness and safety of DAAs in patients with end-stage renal disease and HCV genotype 1 infection in real clinical practice. METHODS Thirty-six patients who attended our clinic, were diagnosed with chronic hepatitis C (CHC), undergoing hemodialysis, and fulfilled the criteria of age >18 years, genotype 1 infection, with a detectable HCV RNA level were considered for the study. Patients with GT1a infection received OBV/PTV/r plus DSV plus RBV for 12 weeks; GT1b infected patients received this regimen without RBV for 12 weeks. RESULTS The study was conducted on 33 patients. The mean age was 52.30 ±13.77 years, and 70 % of them were male. By the fourth week of treatment, HCV RNA levels decreased below 15 IU/ml in all patients. Sustained virologic response (SVR) 12 rate was 100%. Nine patients had side effects during treatment. Of the patients with side effects, 89.9% were in group 1a and 11.1% in group 1b. CONCLUSION In this study, treatment with OBV/PTV/r and DSV with or without RBV resulted in high rates of sustained virologic response in HCV GT1-infected patients with end-stage renal disease (ESRD). SVR was achieved in all patients with few side effects.

1 January 2014 in Kafkas Journal of Medical Sciences
Verified
Journal Article
Closed access
ŞKŞükran Köse
Şükran Köse
AMAliye Mandıracıoğlu
Aliye Mandıracıoğlu
GÇGülsün Çavdar
Gülsün Çavdar
YUYıldız Ulu
Yıldız Ulu
MTMelda Türken
Melda Türken
NNNeşe Nohutçu
Neşe Nohutçu

6 May 2021 in Current HIV Research
Verified
Journal Article
Closed access
PDF file
MTMelda Türken
Melda Türken
HAHividar Altan
Hividar Altan
SASabri Atalay
Sabri Atalay
SKSukran Kose
Sukran Kose
Background: The clinical spectrum of SARS-CoV-2 infection may vary from simple colds to a severe acute respiratory syndrome, metabolic acidosis, septic shock, and multiple organ failure. Current evidence indicates that the risk of severe illness increases with age, in the male sex, and with certain chronic medical problems. Many people living with HIV have other conditions that increase their risk. Case presentation: In the first 3 months of the pandemic, four patients with HIV were hospitalized in our clinic because of COVID-19. The disease severity was mild in two patients with normal CD4+ T count. However, one patient with a low CD4+T count died and the other developed retinal detachment one month after discharge. The deceased patient had a malignancy. Conclusion: In this study, the effect of the immunological status of the patients on the course of COVID-19 and the developing vascular complications was evaluated in 4 patients with HIV.

22 January 2024 in Mikrobiyoloji Bulteni
Verified
Journal Article
Closed access
SBSEYİT ALİ BÜYÜKTUNA
SEYİT ALİ BÜYÜKTUNA
CÖCaner Öksüz
Caner Öksüz
ATAlper Tahmaz
Alper Tahmaz
FYFigen Sarıgül Yıldırım
Figen Sarıgül Yıldırım
MTMelda Türken
Melda Türken
ŞKŞükran Köse
Şükran Köse
Human immunodeficiency virus (HIV)/acquired immundeficiency syndrome (AIDS) is a critical global public health problem that significantly affects both life expectancy and the overall quality of life of in dividuals in all age groups. The landscape of HIV infection has changed significantly in recent years due to the introduction of effective combination antiretroviral therapies (ART). A key component of first -line ART regimens for HIV treatment is abacavir, a nucleoside HIV reverse transcriptase inhibitor. Although ab acavir is effective in suppressing viral replication and managing disease, its clinical utility is overshadowed by the potential for life -threatening hypersensitivity reactions in HLA-B*57:01-positive patients. In our country, local data obtained from various centers regarding the prevalence of HLA-B*57:01 in HIV -1 -infected patients are available. In this study, it was aimed to determine the prevalence of the HLA-B*57:01 genotype in HIV -infected patients who were followed up and treated in many regions of our country. This retrospective study consists of the data of the patients aged 18 years and over diagnosed with HIV -1 infection between 01.01.2019 and 31.07.2022. Age, gender, place of birth, mode of transmission of the disease, death status, CD4+ T cell count and HIV RNA levels at the first clinical presentation, HLA-B*57:01 positivity, and the method used, clinical stage of the disease, virological response time with the treatment they received were recorded from the patient files. Data were collected from 16 centers and each center used different methods to detect HLA-B*57:01. These methods were sequence -specific oligonucleotide probe hybridization (SSOP), DNA sequence -based typing (SBT), single -specific primer-polymerase chain reaction (SSP-PCR), allele -specific PCR (AS-PCR) and quantitative PCR (Q-PCR). A total of 608 HIV -infected individuals, 523 males (86%) and 85 females (14%), were included in the study. The mean age of the patients was 36.9 +/- 11.9 (18-73) years. The prevalence of HLA-B*57:01 allele was found to be 3.6% (22 patients). The number of CD4+ T lymphocytes in HLA-B*57:01 allele -positive patients was > 500/ mm(3) in 10 patients (45.5%), while the number of CD4+ T lymphocytes in HLA-B*57:01 negative pa- tients was > 500/mm(3) in 216 patients (36.9%) (p> 0.05). Viral load at the time of diagnosis was found to be lower in patients with positive HLA-B*57:01 allele but it was not statistically significant (p> 0.05). Although different treatment algorithms were used in the centers following the patients, it was observed that the duration of virological response was shorter in HLA-B*57:01 positive patients (p= 0.006). Although the presence of the HLA-B*57:01 allele has a negative impact due to its association with hypersensitivity, it is likely to continue to attract interest due to its association with slower progression of HIV infection and reduced risk of developing AIDS. In addition, although the answer to the question of whether it is cost-effective to screen patients for HLA-B*57:01 before starting an abacavir-containing ART regimen for the treatment of HIV infection is being sought, it seems that HIV treatment guidelines will continue to recommend screening to identify patients at risk in this regard.