Hakan Duman

Dr. Hakan Duman

orcid

Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

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

Representative Publications

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1 January 2019 in Clinical and Applied Thrombosis/Hemostasis
Verified
Journal Article
Open access
PDF file
HDHakan Duman
Hakan Duman
GÇGöksel Çinier
Göksel Çinier
EBEftal Murat Bakırcı
Eftal Murat Bakırcı
HDHandan Duman
Handan Duman
ZŞZiya Şimşek
Ziya Şimşek
NENadir Emlek
Nadir Emlek
Increased coronary thrombus burden is known to be a strong predictor of adverse cardiovascular (CV) outcomes. C-reactive protein to albumin ratio (CAR) can be used as a surrogate marker of pro-inflammation which is closely related to prothrombotic state. We aimed to evaluate the association between CAR and coronary thrombus burden in patients who presented with acute coronary syndrome (ACS). Patients who presented with ACS and treated with primary percutaneous coronary intervention were included in the study. Patients were divided into 2 groups as high thrombus burden and low thrombus burden. The study population included 347 patients with non-ST-segment elevation myocardial infarction (169 [48.7%]) and ST-segment elevation myocardial infarction (178 [51.3%]). The CAR was significantly higher in patients with higher thrombus burden (24.4 [1.2-30.2] vs 31.9 [2.2-31.3], P < .001). Independent predictors for increased thrombus burden were higher CRP level (odds ratio [OR]: 0.047; 95% confidence interval [CI]: 0.004-0.486; P = .010), lower serum albumin level (OR: 0.057; 95% CI: 0.033-0.990; P = .049), higher CAR (OR: 1.13; 95% CI: 1.03-1.23; P = .008), higher neutrophil–lymphocyte ratio (OR: 1.18; 95% CI: 1.05-1.31; P = .004), and baseline troponin I level (OR: 1.06; 95% CI: 1.01-1.13; P = .017). Novel CAR can be used as a reliable marker for increased coronary thrombus burden that is associated with adverse CV outcomes.

25 June 2013 in Echocardiography
Verified
Journal Article
Closed access
PDF file
ZSZiya Simsek
Ziya Simsek
MTM. Hakan Tas
M. Hakan Tas
HDHusnu Degirmenci
Husnu Degirmenci
AYA. Gokhan Yazıcı
A. Gokhan Yazıcı
Emrah IpekEmrah Ipek
Emrah Ipek
HSHuseyin Senocak
Huseyin Senocak

29 September 2016 in Angiology
Verified
Journal Article
Closed access
HHHikmet Hamur
Hikmet Hamur
OOOruc Alper Onk
Oruc Alper Onk
EVErtan Vuruskan
Ertan Vuruskan
HDHakan Duman
Hakan Duman
EBEftal Murat Bakirci
Eftal Murat Bakirci
ETErgun Topal
Ergun Topal
Chronic total occlusion (CTO) is a common finding in 40% of the patients with peripheral arterial disease (PAD). The aim of this study was to investigate the determinants of CTO in patients with PAD. The study included a total of 211 nonanemic patients with PAD. All patients were categorized according to the Fontaine classification. In lower extremity angiography cohorts, CTO − patients were designated as group 1 and CTO + patients were designated as group 2. Patients with CTO had significantly higher red cell distribution width (RDW), neutrophil–lymphocyte ratio, uric acid, and high-sensitivity C-reactive protein compared to patients without CTO ( P ≤ .001, P = .036, P ≤ .001, and P = .015, respectively). Albumin, total bilirubin, and direct bilirubin were significantly lower in the patients with CTO compared to patients without CTO ( P = .023, P ≤ .001, and P = .049, respectively). Multivariate logistic regression analysis showed that RDW, uric acid, and total bilirubin were independent predictors of CTO in patients with PAD. We demonstrated that increased RDW and uric acid levels and lower total bilirubin values were independently associated with CTO in patients with PAD.

10 September 2020 in Current Cardiology Reviews
Verified
Journal Article
Open access
PDF file
LALutfu Askin
Lutfu Askin
HDHakan Duman
Hakan Duman
AÖAli Gökhan Özyıldız
Ali Gökhan Özyıldız
OTOkan Tanriverdi
Okan Tanriverdi
STSerdar Turkmen
Serdar Turkmen
: Like other adipokines, omentin-1 is secreted from visceral adipose tissue and plays a vital role in the development of chronic inflammatory diseases, including cardiovascular events. Recent studies have shown that circulating omentin-1 levels are associated with various metabolic risk factors, such as high blood pressure, increased waist circumference, dyslipidemia, and glucose intolerance. The decrease in serum omentin level is an independent predictor of Coronary Artery Disease (CAD) and is associated with the severity of this disease. Since there is no relevant review in the literature, we aimed to summarize the studies on the relationship between omentin-1 and CAD.

2 September 2015 in Angiology
Verified
Journal Article
Closed access
HHHikmet Hamur
Hikmet Hamur
HDHakan Duman
Hakan Duman
EBEftal Murat Bakirci
Eftal Murat Bakirci
ZKZafer Kucuksu
Zafer Kucuksu
SDSelami Demirelli
Selami Demirelli
HDHusnu Degirmenci
Husnu Degirmenci
We investigated whether serum bilirubin level (a marker of heme oxygenase activity) is a predictor of thrombus burden in patients with acute myocardial infarction. Patients (n = 229; male 72.9%; mean age 63 ± 13.4 years) who were admitted with ST-segment elevation myocardial infarction (STEMI) were enrolled. Patients were divided into 2 groups. Group 1 was defined as low thrombus burden and group 2 was defined as high thrombus burden. Patients with high thrombus burden had higher total bilirubin levels (14.4 [4.3-22.9] vs 7.7 [2.4-20.3] µmol/L, P ≤ .001), (0.84 [0.25-1.34] vs 0.45 [0.14-1.19] mg/dL P ≤ .001) and direct bilirubin levels (3.1 [2.1-8.4] vs 1.7 [0.5-6.5] µmol/L, P ≤ .001), (0.18 [0.03-0.49] vs 0.10 [0.03-0.38] mg/dL, P ≤ .001). At multivariate analysis, total bilirubin (odds ratio: 1.05, 95% confidence interval: 1.03-1.08, P ≤ .001) was the independent predictor of high thrombus burden. In conclusion, total bilirubin level is independently associated with high thrombus burden in patients with STEMI.

11 July 2016 in Angiology
Verified
Journal Article
Closed access
HHHikmet Hamur
Hikmet Hamur
HDHakan Duman
Hakan Duman
LDLevent Demirtas
Levent Demirtas
EBEftal Murat Bakirci
Eftal Murat Bakirci
MDMurtaza Emre Durakoglugil
Murtaza Emre Durakoglugil
EVErtan Vuruskan
Ertan Vuruskan
Bilirubin may have important antiatherosclerotic effects. Prediabetes (PD), the intermediate stage before diabetes mellitus, is associated with increased cardiovascular morbidity and mortality. We evaluated the relationship between serum bilirubin levels and carotid intima–media thickness (cIMT), as a surrogate marker of subclinical atherosclerosis, in patients with PD. We enrolled 170 consecutive patients with PD. The patients underwent ultrasonography to evaluate cIMT. The patients were divided into groups according to cIMT values (<0.9 vs ≥0.9 mm). The patients with cIMT ≥ 0.9 mm had significantly higher diastolic blood pressure, neutrophil–lymphocyte ratio (NLR), and glycated hemoglobin values compared with patients having cIMT < 0.9 mm, whereas total and direct bilirubin values were significantly lower in this group. Multivariate regression analyses revealed NLR and total bilirubin as the independent predictors of subclinical atherosclerosis. The present study demonstrated that NLR and lower total bilirubin levels were independent predictors of subclinical atherosclerosis in patients with PD. Simple measures such as NRL and total bilirubin may provide predictive information regarding the risk of cardiovascular disease in patients with PD.