Zubeyir Bulat

Dr. Zubeyir Bulat

orcid

Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

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

Representative Publications

View All Publications
24 March 2025 in Biomarkers in Medicine
Verified
Journal Article
Closed access
BGBarış Güven
Barış Güven
MDMuhammed Furkan Deniz
Muhammed Furkan Deniz
NGNeziha Aybuke Geylan
Neziha Aybuke Geylan
BKBarkın Kültürsay
Barkın Kültürsay
ADAyça Dönmez
Ayça Dönmez
VOVeysel Oktay
Veysel Oktay
This study aimed to identify the prognostic significance of the C-reactive protein-albumin-lymphocyte (CALLY) index for predicting all-cause mortality in acute coronary syndrome (ACS) patients who have undergone primary percutaneous coronary intervention (pPCI) for revascularization. 505 patients who presented with ACS and underwent pPCI were retrospectively included in this single center study. CALLY index and other five prognostic scores were calculated. The median follow-up was 40 months. All-cause mortality was defined as the primary endpoint. The median age of the patients was 59 years, 23.4% were female. The CALLY index was categorized into low (<0.7) and high (≥0.7). Age (p = 0.038), concomitant atrial fibrillation (p = 0.023), previous CABG (p = 0.001), ACE-I/ARB/ARNI use (p = 0.015), diuretic use (p = 0.021), and a low-CALLY index (p < 0.001) were identified as independent predictors of all-cause mortality in multivariate cox regression analysis. When compared to other prognostic scores according to AUC in ROC analysis, the CALLY index demonstrated the best ability to predict all-cause mortality. Additionally, patients with a high-CALLY index exhibited significantly better survival outcomes compared to those with a low-CALLY index (log-rank:p < 0.001). CALLY index can be utilized as a novel prognostic score for predicting all-cause mortality in ACS patients who have undergone pPCI.

20 January 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
MDMuhammed Furkan Deniz
Muhammed Furkan Deniz
BGBarış Güven
Barış Güven
AEAbdullah Omer Ebeoğlu
Abdullah Omer Ebeoğlu
OGOmer Burak Gul
Omer Burak Gul
ANAli Nayir
Ali Nayir
USUmit Yasar Sinan
Umit Yasar Sinan
Background/Objectives: Familial hypercholesterolemia (FH) is a monogenic dyslipidemia that leads to early cardiovascular events. Subclinical atherosclerosis refers to the formation of atheromatous plaques in arterial beds before any clinical events. In our study, we investigated the presence, extent, and independent predictors of subclinical atherosclerosis among patients diagnosed with FH. Methods: This was a single-center, prospective, and cross-sectional study. This original study included 215 patients diagnosed with FH from a cohort of 1145 individuals assessed according to the Dutch Lipid Clinical Network (DLCN) criteria. Carotid and femoral ultrasonography were performed, and the coronary artery calcium score was measured to screen for subclinical atherosclerosis. Apolipoprotein A-I, apolipoprotein B, and lipoprotein (a) were analyzed using the nephelometric method. Results: The study cohort comprised 136 females (63%) with a mean age of 54 (43–62) years. The stigmata rate was 18%. The rate of statin use during subclinical atherosclerosis screening was 32% and only eight patients (4%) attained LDL-C values < 70 mg/dL. Subclinical atherosclerosis was observed in 148 patients (69%), with rates of 48%, 47.5%, and 40.5% in the coronary arteries, carotid bifurcation, and femoral bifurcation, respectively. Advanced age, male sex, high pretreatment low-density lipoprotein-cholesterol (LDL-C) level, diabetes, and a low Apo A-I/Apo B ratio were identified as independent predictors of subclinical atherosclerosis. Lp(a) levels ≥ 30 mg/dL predicted coronary atherosclerosis, while diabetes and low Apo A-I/Apo B ratios predicted carotid atherosclerosis, and smoking predicted femoral atherosclerosis. Conclusions: Subclinical atherosclerosis is prevalent, and medication adherence remains suboptimal among FH patients. Screening for subclinical atherosclerosis may impact the treatment strategies, via an increase in physician commitment to treatment protocols and improving patient compliance.

Verified
Journal Article
Open access
PDF file
VOVeysel Oktay
Veysel Oktay
ŞAŞükrü Arslan
Şükrü Arslan
MGMUHAMMED HEJA Gecit
MUHAMMED HEJA Gecit
ZBZubeyir Bulat
Zubeyir Bulat
MGMehmet Emin Gokce
Mehmet Emin Gokce
Background: Left ventricular outflow tract obstruction (LVOTO) impairs survival and diminishes quality of life in patients with hypertrophic obstructive cardiomyopathy (HOCM). In this study, we aimed to investigate the safety and the efficacy of earlier alcohol septal ablation (ASA) in patients with HOCM. Methods: A total of 47 patients with mildly symptomatic HOCM (NYHA II) and having poor functional capacity despite maximal tolerated medical therapy were included. Results: The mean age of the patients was 55 ± 14, and 57% of the patients were male. All clinical endpoint targets including 30 d mortality (1% vs. 0% p < 0.01), 30 d adverse complications (10% vs. 0% p < 0.01), 30 d complete heart block resulting in need for permanent pacemaker (10% vs. 4.2% p < 0.01), more than moderate residual mitral regurgitation (5% vs. 2.1% p < 0.01), repeat procedure rate (10% vs. 4.2% p < 0.01), improvement of (NYHA) class (90% vs. 95.7% p < 0.01), rest and provoked (LVOT) gradient < 50 mmHg (90% vs. 97.8% p < 0.01) were significantly reached. Conclusions: In patients with mildly symptomatic HOCM (NYHA II), earlier ASA may be performed as an effective and safe procedure in experienced centers.

20 September 2026 in Preprints.org
Verified
Preprint
Open access
PDF file
ZBZubeyir Bulat
Zubeyir Bulat
MGMehmet Emin Gokce
Mehmet Emin Gokce
ŞAŞükrü Arslan
Şükrü Arslan
MGMUHAMMED HEJA Gecit
MUHAMMED HEJA Gecit
MBMehmet Emin Bilgin
Mehmet Emin Bilgin
VOVeysel Oktay
Veysel Oktay
New-onset atrial fibrillation (NOAF) is a frequent complication among patients with non-ST-elevation myocardial infarction (NSTEMI) and is associated with adverse outcomes, making early identification of predictors essential for risk stratification and management. This retrospective cohort study evaluated the prognostic value of the Clinical SYNTAX Score (CSS) compared with the anatomical SYNTAX Score (SS), GRACE, and CHA2DS2-VASc scores in predicting in-hospital NOAF and long-term outcomes among 979 NSTEMI patients undergoing coronary angiography. Predictors of NOAF, all-cause mortality, and major adverse cardiovascular events (MACE: death, myocardial infarction, stroke) were identified using logistic and Cox regression models, with receiver operating characteristic (ROC) analysis used to compare the discriminative power of CSS against SS, GRACE, and CHA2DS2-VASc over a median follow-up of 86 months (IQR: 0.1–144). NOAF developed in 80 patients (8.2%), with age, female gender, left atrial diameter, left ventricular diastolic dysfunction, and CSS (p=0.014) identified as independent predictors. CSS demonstrated superior discriminative ability (AUC: 0.724; 95% CI: 0.673–0.775) compared with SS (AUC: 0.644; 95% CI: 0.588–0.699), and a CSS threshold ≥17.77 predicted NOAF with 75% sensitivity and 65% specificity. In Cox regression analysis, in-hospital NOAF, age, hypertension, reduced ejection fraction (<60%), and CSS independently predicted long-term all-cause mortality, while NOAF, EF<60%, age, early AF recurrence, hypertension, and CSS independently predicted MACE; SS was not a significant predictor in either model. These findings indicate that CSS outperforms SS in predicting in-hospital NOAF and long-term outcomes in NSTEMI patients, offering a practical and comprehensive tool for early rhythm monitoring and risk-guided management.

26 September 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
SASelda Aydın
Selda Aydın
AMAli Mert
Ali Mert
AEAhmet Emecen
Ahmet Emecen
BSBalint Gergely Szabo
Balint Gergely Szabo
FAFirdevs Aksoy
Firdevs Aksoy
HEHakan Erdem
Hakan Erdem
Background/Objectives: Cardiac implantable electronic device-related infective endocarditis (CIED-RIE) is a serious condition with significant morbidity and mortality. Although recent advances in imaging and therapeutic approaches have improved management, diagnosing and treating CIED-RIE continues to be challenging. This study aimed to identify factors associated with mortality in CIED-RIE patients. Methods: We conducted a retrospective, multicenter international study of adult patients diagnosed with CIED-RIE between January 2014 and June 2024. Data on demographics, clinical presentation, microbiological findings, imaging results, treatment modalities, and outcomes were collected and analyzed to determine predictors of short-term mortality. Results: A total of 197 patients (mean age: 65.3 ± 14.4 years; 75.1% male) were included. The most common device type was permanent pacemaker (48.2%). Staphylococcus species were the predominant pathogens (62.4%). Surgical intervention was performed in 67.5% of patients, and 90-day mortality occurred in 19.3%. Multivariable analysis identified higher Charlson comorbidity index (HR: 1.31), tricuspid valve involvement (HR: 2.35), vegetation size ≥ 10 mm (HR: 2.53), pulmonary embolism (HR: 3.92), and absence of surgical intervention (HR: 2.90) as independent predictors of increased 90-day mortality. Conclusions: Early identification of high-risk patients and prompt multidisciplinary management, including surgical intervention when indicated, are critical to improving outcomes in patients with CIED-RIE.

26 December 2024 in Preprints.org
Verified
Preprint
Open access
PDF file
MDMuhammed Furkan Deniz
Muhammed Furkan Deniz
BGBarış Güven
Barış Güven
AEAbdullah Omer Ebeoğlu
Abdullah Omer Ebeoğlu
OGOmer Burak Gul
Omer Burak Gul
ANAli Nayir
Ali Nayir
USUmit Yasar Sinan
Umit Yasar Sinan
Background/Objectives: Familial hypercholesterolemia (FH) is a monogenic dyslipidemia that leads to early cardiovascular events. Subclinical atherosclerosis refers to the formation of atheromatous plaques in arterial territories before any clinical events. In our study, we investigated the presence, extent and independent predictors of subclinical atherosclerosis among patients diagnosed with FH. Methods: This was a single-center, prospective and cross-sectional study involving a cohort of 215 patients diagnosed with FH. Carotid and femoral ultrasonography were performed, and coronary artery calcium score was measured to screen for subclinical atherosclerosis. Apolipoprotein A-I, apolipoprotein B and Lipoprotein (a) were analyzed using the nephelometric method. Results: The study cohort comprised 136 females (63%) with a mean age of 54 (43–62) years. The stigmata rate was 18%. The rate of statin use during subclinical atherosclerosis screening was 32% and only eight patients (4%) attained LDL-C values