Publications by authors named "Barıs Simsek"

Objective: This study aims to evaluate the role of elevated lipoprotein (a) [Lp(a)] levels as a potential contributor to residual risk in individuals with atherosclerotic cardiovascular disease (ASCVD). Considering that approximately 90% of Lp(a) levels are genetically determined and can vary regionally, we assessed Lp(a) levels in a cohort of ASCVD patients from the Turkish population, where data is currently limited.

Methods: We conducted a retrospective analysis of data and Lp(a) measurements collected from individuals diagnosed with ASCVD at a single center.

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The CHA₂DS₂-VASc (congestive heart failure, hypertension, age, diabetes mellitus, stroke, vascular disease, sex) scoring system, which includes conventional risk factors of coronary artery disease, was originally created to quantify the risk of thromboembolism in patients with atrial fibrillation. This study evaluated the usefulness of this score to predict adverse outcomes in STEMI (ST-elevation myocardial infarction) patients without atrial fibrillation. Primary end points were identified as MACE (major adverse cardiovascular events) which included in-hospital death or cerebrovascular accident.

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: In this study, we aimed to investigate the prognostic value of the C-reactive protein to albumin ratio (CAR) for all-cause mortality in patients with chronic heart failure with reduced ejection fraction (HFrEF). : In total, 404 chronic HFrEF patients were included in this observational and retrospective study. The CAR value of each patient included in this analysis was calculated.

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Smart sensors with self-healing capabilities have recently aroused increasing interest in applications in soft electronics. However, challenges remain in balancing the sensors' self-healing and compatibility between their sensing and substrate layers. This study evaluated several self-healing polymer substrates and graphene ink-based strain-sensing coatings.

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Background: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia worldwide and is associated with an increased risk of thromboembolism, ischemic stroke, impaired quality of life, and mortality. The latest research that shows the prevalence and incidence of AF patients in Türkiye was the Turkish Adults' Heart Disease and Risk Factors study, which included 3,450 patients and collected data until 2006/07.The Turkish Real Life Atrial Fibrillation in Clinical Practice (TRAFFIC) study is planned to present current prevalence data, reveal the reflection of new treatment and risk approaches in our country, and develop new prediction models in terms of outcomes.

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Article Synopsis
  • The study explores how obesity, measured by body fat percentage (BFP) and relative fat mass (RFM), impacts outcomes in patients with non-ST-segment elevation myocardial infarction (NSTEMI), noting an "obesity paradox" where obese patients seem to have better prognoses despite having CAD.
  • A total of 748 NSTEMI patients were analyzed, revealing that obese individuals had similar peak creatine kinase-MB (CK-MB) levels compared to non-obese patients, but displayed better cardiac function and less severe coronary artery disease upon evaluation.
  • Key findings suggest that higher BFP correlates with smaller infarct size, indicating that certain measures of obesity might have beneficial effects on heart health outcomes during NSTEM
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Objective: Different results have been obtained in studies on the effect of anesthesia type applied during transcatheter aortic valve implantation on in-hospital outcomes. In this study, we aimed to investigate the association of the type of anesthesia with the lenght of stay in the intensive care unit and the need for inotropes in patients undergoing transcatheter aortic valve implantation.

Methods: A total of 140 patients who underwent transcatheter aortic valve implantation between January 2016 and January 2022 were retrospectively analyzed.

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Background: Ectatic infarct-related artery (IRA) has been shown to be associated with higher thrombus burden, no-reflow, stent thrombosis (ST) and major adverse cardiovascular events in patients with ST-elevation myocardial infarction (STEMI). The effect of ectatic non-IRA on ST without ectatic IRA is not known. We aimed to assess the effect of ectatic non-IRA presence on ST within 1 month after primary percutaneous intervention (pPCI) in patients with STEMI.

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We assessed the ability of predicting mortality and total in-hospital bleeding and adverse outcomes by the Academic Research Consortium High Bleeding Risk (ARC-HBR) criteria in ST-segment elevation myocardial infarction (STEMI) patients undergoing primary percutaneous coronary intervention (pPCI). A total of 1441 STEMI patients were recruited: HBR group 354 (25%) patients and non-HBR group of 1087 (75%) patients. A total of 131 patients (9%) had a bleeding complication during hospitalization.

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Stent under-expansion is a predictor of restenosis and stent thrombosis. It remains uncertain whether enhanced stent imaging (ESI) (CLEARstent) guidance can improve stent under-expansion. Our aim was to assess the effect of using ESI on stent under-expansion, after percutaneous coronary intervention (PCI) in a single center, cross-sectional observational study.

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Diabetes, hypertension, hyperlipidemia and smoking are associated with coronary artery disease and ST-elevation myocardial infarction (STEMI). However, patients without any classic risk factors have a higher mortality rate in the post-STEMI period. The aim of this study was to investigate the relationship between in-hospital mortality and creatinine/albumin ratio in patients with STEMI without modifiable risk factors.

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Objective: Discontinuation of metformin treatment is a frequently used approach in clinical practice in diabetic ST-segment elevation myocardial infarction patients using metformin in order to reduce the risk of contrast-induced acute kidney injury. There is insufficient evidence in the literature to support this approach. The aim of this study is to determine whether the risk of contrast-induced acute kidney injury is different in diabetic ST-segment elevation myocardial infarction patients using metformin compared to those not taking metformin.

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Objective: Access site-related vascular complications are common complications of trans- catheter aortic valve replacement. In this study, we aimed to investigate the efficacy and safety of prophylactic cannulation of the ipsilateral distal femoral artery in the management of access site-related vascular complications.

Methods: One hundred sixty-four patients, who were evaluated by the Heart Team of our institution and found eligible for transcatheter aortic valve replacement procedure between January 2016 and August 2019, were included in this retrospective study.

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Studies reported conflicting results on the effect of renin-angiotensin-aldosterone system (RAAS) blocker use on acute kidney injury (AKI) in patients undergoing elective coronary angiography but association in elderly patients with ST-elevation myocardial infarction (STEMI) is not known. Also, there are limited data on the effect of inflammatory markers on AKI. We aimed to investigate the effects of RAAS blocker pretreatment and inflammatory markers on AKI in this population.

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Objective: Percutaneous closure of atrial septal defects is challenging in cases where the device is perpendicular to the septum during the procedure. Hence, different techniques, maneuvers, and auxiliary equipment may be required. We aimed to demonstrate the effectiveness of the FlexCath steerable catheter application in percutaneous closure of atrial septal defect cases in which the device was perpendicular to the septum.

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Atrial fibrillation (AF) is associated with increased morbidity in myocardial infarction (MI), especially thromboembolic risk increases. The PRECISE-DAPT (The PREdicting bleeding Complications In patients undergoing Stent implantation and subsEquent Dual Anti-Platelet Therapy) score was created to predict the bleeding risk of dual antiplatelet therapy. The purpose of this study was to evaluate the association between new-onset AF and the PRECISE-DAPT score in ST-segment-elevation myocardial infarction (STEMI).

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Several studies have shown that high uric acid (UA) and low serum albumin (SA) values increase the risk of cardiovascular disease and mortality in ST-elevation myocardial infarction (STEMI). We determined whether the uric acid/albumin ratio (UAR) is a predictor of mortality in STEMI patients. All patients who presented at our center with a diagnosis of STEMI and underwent percutaneous intervention from 2015 to 2020 were screened consecutively; 4599 patients were included.

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Objective: In this study, we aimed to determine whether admission hemoglobin versus post-percutaneous coronary intervention (PCI) hemoglobin level at 24 hours is a predictor of in-hospital mortality for patients with ST elevation myocardial infarction (STEMI) without evidence of clinical hemorrhage who underwent primary PCI.

Methods: In this study, we included 1,444 consecutive patients with STEMI who underwent primary PCI at a tertiary heart hospital. The primary outcome of the study was the in-hospital all-cause mortality.

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Article Synopsis
  • The study evaluated the predictive value of the C-reactive protein/albumin ratio (CAR) for acute kidney injury (AKI) in non-ST-segment elevation myocardial infarction (NSTEMI) patients with chronic kidney disease (CKD).
  • A total of 420 NSTEMI patients were analyzed, and it was found that a higher CAR ratio (especially in the T3 group) significantly correlated with an increased incidence of AKI, with 34% of T3 patients developing AKI.
  • The study highlighted that CAR is a promising indicator for predicting AKI in this patient population, with CAR levels above 0.20 showing 74% sensitivity and 45% specificity for AKI development.
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Background: High-intensity statin (HIS) therapy is widely recommended for secondary prevention after an acute myocardial infarction (AMI). The 2019 European Society of Cardiology (ESC)/European Atherosclerosis Society (EAS) dyslipidemia guidelines have lowered the target low-density lipoprotein cholesterol (LDL-C) level, which necessitates a more frequent use of nonstatin therapies.

Objectives: The objectives of the study were to investigate the rate of LDL-C target attainment for secondary prevention in AMI patients.

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Background: No‑reflow (NR) is a strong and independent predictor of poor cardiovascular outcomes among patients with ST‑segment elevation myocardial infarction (STEMI).

Aims: The aim of the study was to investigate the association of the acute‑to‑chronic (A/C) glycemic ratio with no‑reflow (NR) in STEMI patients following primary percutaneous coronary intervention (PCI).

Methods: This retrospective study included 905 patients with STEMI.

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Background: Although ST-segment elevation (STE) has been used synonymously with acute coronary occlusion (ACO), current STE criteria miss nearly one-third of ACO and result in a substantial amount of false catheterization laboratory activations. As many other electrocardiographic (ECG) findings can reliably indicate ACO, we sought whether a new ACO/non-ACO myocardial infarction (MI) paradigm would result in better identification of the patients who need acute reperfusion therapy.

Methods: A total of 3000 patients were enrolled in STEMI, non-STEMI and control groups.

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Introduction: In the present study, we aimed to evaluate compliance to lipid lowering guidelines regarding statin prescription on discharge and statin adherence rates during a follow-up period of one year in patients hospitalised with a diagnosis of acute coronary syndrome (ACS).

Methods: In-hospital records of 3506 ACS patients, of which 771 had experienced an ST-elevation myocardial infarction (STEMI) and 2735 had experienced a non-STEMI, were collected. We calculated medication possession ratios (MPRs) for each subject.

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Background: We identified a specific pattern that does not display contiguous ST-segment elevation (STE), indicating acute inferior myocardial infarction (MI) with concomitant critical stenoses on the other coronary arteries. We sought to define the frequency, underlying anatomic substrate, diagnostic power and prognostic implications of this pattern.

Methods: One thousand patients with a diagnosis of non-STEMI were enrolled as the study group.

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