Birsen Ertekin

Dr. Birsen Ertekin


Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

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

Representative Publications

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2 April 2024 in Biomarkers in Medicine
Verified
Journal Article
Closed access
AEAzmi Eyiol
Azmi Eyiol
BEBirsen Ertekin
Birsen Ertekin
Aim: The authors investigated the association of red blood cell distribution width to albumin ratio (RAR) with prognosis and severity in acute ischemic stroke (AIS). Methods: One hundred twenty-sev...

10 June 2013 in Pakistan Journal of Medical Sciences
Verified
Journal Article
Open access
PDF file
BEBirsen Ertekin
Birsen Ertekin
SKSedat Koçak
Sedat Koçak
ZDZerrin Defne Dündar
Zerrin Defne Dündar
SGSadık Girişgin
Sadık Girişgin
BCBaşar Cander
Başar Cander
TŞTahir Kemal Şahin
Tahir Kemal Şahin
Objective: To investigate diagnostic value of ischemia-modified albumin (IMA) levels in patients applying to emergency with symptoms of acute coronary syndrome (ACS) and acute ischemic stroke (AIS).Methods: Two patient groups (ACS and AIS) and a control group were constituted. The study was discontinued upon reaching 30 patients in each group. Following patient approval at the initial visit, a total of 10 ml venous blood sample was obtained from all patients with a high clinical suspicion of ACS and AIS. The Troponin I and the IMA levels were determined in the blood samples.Results: Statistically significant higher IMA values were determined in the patient groups compared to the control group (p < 0.001 for both groups). No statistically significant correlation was found between the IMA and the Troponin I values in the ACS and the AIS groups (p>0.05 for both groups). The sensitivity of IMA was 83% and 87% for ACS and AIS, respectively. The specificity of IMA was 90% and 87% for ACS and AIS, respectively.Conclusion: The sensitivity and specificity values, determined according to the optimal cut-off values in the groups demonstrated that IMA could be a useful diagnostic marker in ACS and AIS patients.doi: http://dx.doi.org/10.12669/pjms.294.3176How to cite this:Ertekin B, Kocak S, Dundar ZD, Girisgin S, Cander B, Gul M, et al. Diagnostic value of ischemia-modified albumin in acute coronary syndrome and acute ischemic stroke. Pak J Med Sci 2013;29(4):1003-1007.

1 December 2021 in Emergency Medicine International
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Journal Article
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BEBirsen Ertekin
Birsen Ertekin
Mehmet YortanlıMehmet Yortanlı
Mehmet Yortanlı
OÖOzan Özelbaykal
Ozan Özelbaykal
ADAli Doğru
Ali Doğru
AGA. Sadık Girişgin
A. Sadık Girişgin
TATARIK ACAR
TARIK ACAR
The aim of this study is to investigate the routine blood parameters of COVID-19 patients at the time of admission to the emergency department and their relationship with the severity of the disease and prognosis. A total of 500 patients, who were diagnosed with severe COVID-19 and hospitalized in the intensive care unit between 01.04.2020 and 01.02.2021 in the emergency department of a pandemic hospital, were retrospectively analyzed. Demographic, clinical, and laboratory data of the patients were obtained from the hospital registry system. Neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), and platelet-to-lymphocyte ratio (PLR) were calculated using neutrophil, lymphocyte, monocyte, and platelet counts. These patients were divided into two groups: survivors and deceased. All parameters obtained from routine blood analysis were statistically compared between these two groups. While 280 out of 500 patients survived, 220 died. Of all patients, the mean age was 67 years and 51.8% were males. There was a significant difference between the two groups in terms of age, gender, length of hospital stay, need for mechanical ventilation, white blood cell, neutrophil, lymphocyte, monocyte, eosinophil, platelet counts, CRP, ferritin, procalcitonin values, NLR, MLR, and PLR ( for all). While NLR alone and MLR + NEU and NLR + PLR + MLR combinations had the highest AUC values (0.930, 0.947, and 0.939, respectively), MLR and PLR alone showed the lowest AUC values (0.875 and 0.797, respectively). The sensitivity, specificity, positive predictive values (PPVs), and negative predictive values (NPVs) in the prediction of death according to the cutoff values of the parameters have been determined. A significant correlation was determined between age, NLR, MLR, and PLR and duration of hospital stay ( for all). Routine blood parameters and NLR, MLR, and PLR can assist emergency physicians to identify the severity and early prognosis of COVID-19 patients.

2 September 2022 in Biomarkers in Medicine
Verified
Journal Article
Open access
TATARIK ACAR
TARIK ACAR
BEBirsen Ertekin
Birsen Ertekin
Mehmet YortanlıMehmet Yortanlı
Mehmet Yortanlı
SKSedat Koçak
Sedat Koçak
Aim: The study investigated heparin-binding protein (HBP) levels in patients with severe COVID-19 pneumonia and their relation to prognosis. Methods: A total of 134 patients with serious COVID-19 p...

16 December 2022 in International Journal of General Medicine
Verified
Journal Article
Open access
PDF file
BEBirsen Ertekin
Birsen Ertekin
TATARIK ACAR
TARIK ACAR
Purpose: The present study aimed to investigate the relationship between prognosis and the red cell distribution width (RDW) and the RDW-albumin ratio (RAR) in patients with coronavirus diseases 2019 (COVID-19), since serum albumin and RDW levels may reflect inflammatory conditions. Patients and Methods: A total of 289 patients who had been diagnosed with severe COVID-19 in the emergency department were retrospectively analyzed. The RAR levels were calculated by dividing RDW-CV by albumin. Patient groups (survivors, dying patients, those who received mechanical ventilation (MV) support or not, and those who needed vasopressors or not) were compared with regard to RDW-SD, RDW-CV and the RAR levels. Results: RDW-SD, RDW-CV and the RAR levels were found to be statistically significantly higher in patients who died, and who received MV and vasopressor support, compared to those who survived and did not receive support (p< 0.001 for all). In addition, while the cut-off value of RAR was > 5.43, the sensitivity was 91.6%, the specificity was 93.7%, NPV was 93.1% and the AUC was 0.965 in predicting mortality (p< 0.001). Logistic regression analysis showed that RDW-SD and RAR were independent risk factors for mortality in patients with severe COVID-19. Conclusion: Elevated RDW and RAR levels at the time of admission may independently predict mortality and the need for vasopressor or MV support.

1 January 2018 in Turkish Journal of Trauma and Emergency Surgery
Verified
Journal Article
Closed access
SKSedat Koçak
Sedat Koçak
KOKo
Ko
TATar Acar
Tar Acar
BEBirsen Ertekin
Birsen Ertekin
BACKGROUND: Acute mesenteric ischemia (AMI) is associated with a high mortality rate, yet diagnostic difficulties persist. Although many biomarkers have been investigated for diagnostic purposes, as well as imaging methods, a sufficiently specific and sensitive marker has not been identified. This research was designed to examine whether heparin-binding protein (HBP), which has a role in the early phase of inflammation, could be useful in the diagnosis of AMI. METHODS: Serum samples obtained from a previously performed rabbit model of AMI were used in the study. HBP, C-reactive protein (CRP) and interleukin 6 (IL-6) levels were measured in blood samples obtained at baseline and 1, 3, and 6 hours from subjects that were separated into 3 groups: control, sham, and ischemia. The change in each marker over time and comparisons of the groups were evaluated statistically. RESULTS: A significant difference was not detected at the first hour in any of the studied markers. At the third hour, the CRP and IL-6 levels in the ischemia group indicated a significant increase in comparison with the control and sham groups (p<0.001). The HBP values showed a significant increase at the sixth hour in the ischemia group in comparison with the others (p<0.001). CONCLUSION: The HBP level demonstrated a slower increase in a rabbit model of AMI compared with CRP and IL-6. However, it still has the potential to become an early diagnostic biomarker. Diagnostic sensitivity and specificity should be evaluated in further clinical trials.