Tayfun Şahı̇n

ORCID: 0000-0002-0851-2946
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About
Contact & Profiles
Research Areas
  • Cardiovascular Function and Risk Factors
  • Cardiac pacing and defibrillation studies
  • Cardiac Arrhythmias and Treatments
  • Atrial Fibrillation Management and Outcomes
  • Cardiac Imaging and Diagnostics
  • Cardiovascular Disease and Adiposity
  • Congenital Heart Disease Studies
  • Cardiac Valve Diseases and Treatments
  • Cardiac electrophysiology and arrhythmias
  • Infective Endocarditis Diagnosis and Management
  • Cardiovascular and Diving-Related Complications
  • Heart Failure Treatment and Management
  • Cardiovascular Health and Disease Prevention
  • Coronary Artery Anomalies
  • Lipoproteins and Cardiovascular Health
  • Thyroid Disorders and Treatments
  • Aortic Disease and Treatment Approaches
  • Diabetes Treatment and Management
  • Blood Pressure and Hypertension Studies
  • Cardiac Structural Anomalies and Repair
  • Advanced MRI Techniques and Applications
  • Cardiac tumors and thrombi
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Cardiomyopathy and Myosin Studies
  • Cardiovascular Effects of Exercise

Kocaeli Üniversitesi
2014-2024

Parallax Research (United States)
2021

Abbott Northwestern Hospital
2018

Minneapolis Heart Institute Foundation
2018

Institute of Cardiology
2017

Florida Atlantic University
2013

University Medical Center Utrecht
2012

Centro Cardiologico Monzino
2012

Guilan University of Medical Sciences
2012

Faculty (United Kingdom)
2012

Women with polycystic ovary syndrome (PCOS) carry a number of cardiovascular risk factors. Cardiovascular morbidity is elevated even in young women PCOS. Low-grade chronic inflammation, reflected levels serum C-reactive protein (CRP) and endothelial dysfunction have recently been linked to development atherosclerosis. We compared high-sensitivity (hs)CRP concentrations endothelium 37 PCOS 25 control subjects matched as group for age body mass index (BMI). Arterial smooth muscle function was...

10.1210/jc.2004-0751 article EN The Journal of Clinical Endocrinology & Metabolism 2004-11-01

The relationship betweeen subclinical hypothyroidism (SH) and cardiovascular disease has been one of the most popular topics recently. There is still some controversy concerning its impact management protocols. Our study aims to investigate presence well known preceding clinical situations atherosclerosis like endothelial dysfunction inflammation in hypothyroidism. Thirty-seven patients with (29 women, 8 men) 23 healthy volunteers (19 4 were recruited for study. Endothelial was measured by...

10.1507/endocrj.k10e-333 article EN Endocrine Journal 2011-01-01

Objective : Women with polycystic ovary syndrome (PCOS) exhibit elevated levels of serum C-reactive protein (CRP) and impaired endothelium dysfunction which are directly correlated insulin resistance. Because rosiglitazone improves sensitivity, we tested whether treatment ameliorates high-sensitivity (hs)CRP endothelial in these patients. Design Thirty-one women PCOS were recruited (mean age, 24.7±3.9 ( s.e. ) years; mean body mass index (BMI), 25.6±3.2 kg/m 2 ). All treated 4mg daily for 12...

10.1530/eje.1.01948 article EN European Journal of Endocrinology 2005-07-01

Introduction Limited data exist on long-term follow-up of severe aortic stenosis (SAS) patients who have undergone transcatheter valve implantation (TAVI) with a new generation, balloon expandable Myval heart (THV). Thus, we sought to investigate the performance and 2-year clinical outcome THV system based Valve Academic Research Consortium-3 (VARC-3) criteria. Material methods A multi-centre, registry-based, observational study was conducted, which included 207 consecutive degenerative SAS...

10.5114/aoms/176937 article EN cc-by-nc-sa Archives of Medical Science 2024-03-04

Abstract Background: The components of the metabolic syndrome are closely related with endothelial dysfunction, which is a pathophysiological issue cardiovascular diseases. Non‐alcoholic fatty liver disease (NAFLD) considered as one syndrome. aim this study was to evaluate endothelial‐dependent dilatation (EDD) and endothelial‐independent (EID) brachial artery in NAFLD. Methods: Fifteen non‐alcoholic steatohepatitis (NASH), 17 patients simple steatosis 16 healthy subjects formed group. group...

10.1111/j.1445-5994.2007.01481.x article EN Internal Medicine Journal 2007-08-28

Abstract Purpose The aim of this study was to investigate the long‐term prognosis non‐interventionally followed patients with myocardial bridge and angiographic milking left anterior descending (LAD) coronary artery. Methods All angiography records from May 2000 November 2007 were reevaluated who had more than 70% narrowing during systole on LAD eligible for present study. Follow‐up carried out by physical examination, echocardiography, treadmill exercise testing. clinical situations...

10.1002/clc.20570 article EN Clinical Cardiology 2009-08-01

BACKGROUND:Atrial fibrillation (AF) and renal dysfunction are two common comorbidities in patients with chronic heart failure reduced ejection fraction (HFrEF). This study evaluated the effect of permanent AF on function HFrEF investigated associations atrial fibrillation, neutrophil gelatinase-associated lipocalin (NGAL), neutrophil-to-lymphocyte ratio (NLR) adverse clinical outcome. MATERIAL AND METHODS:Serum NGAL levels measured by ELISA NLR were compared between sinus rhythm (HFrEF-SR,...

10.12659/msm.898608 article EN Medical Science Monitor 2016-12-05

Aim Left ventricular function, volumes and regional wall motion provide valuable diagnostic information are of long-term prognostic importance in patients with dilated cardiomyopathy (DCM). This study was designed to compare the effectiveness two-dimensional echocardiography gated single photon emission computed tomography (SPECT) evaluate these parameters DCM. Methods Gated SPECT were performed 45 DCM, 10 normal subjects as control group. Patients divided into two groups according aetiology...

10.1097/01.mnm.0000170938.98581.14 article EN Nuclear Medicine Communications 2005-07-06

Background: Atrial fibrillation (AF) occurs due to various etiologies that carry different risks for thromboembolism. However, the effect of on left atrial appendage (LAA) function has not been investigated. This study aimed examine LAA in AF occurred under and compare findings with a novel tissue Doppler imaging (TDI) technique by using transesophageal echocardiography (TEE). Methods: was assessed 84 patients permanent according [mitral stenosis 20 (24%), hypertension 44 (52%),...

10.1111/j.1540-8175.2008.00794.x article EN Echocardiography 2009-01-21

Abstract Background: Cardiac resynchronization therapy (CRT) is an effective option in the treatment of patients with heart failure (HF) and wide QRS. Fragmented QRS (fQRS) on 12‐lead electrocardiography has been shown to predict cardiac events several patient populations. However, relationship between number leads fQRS response CRT not investigated. Hypothesis: The may CRT. Methods: One hundred five HF undergoing were prospectively studied. presence was assessed using standardized criteria....

10.1002/clc.22061 article EN Clinical Cardiology 2012-10-18

The study aimed to compare diastolic and systolic dysfunctions detected by echocardiography (ECHO) multigated radionuclide angiography (MUGA) in patients with cancer the first 3 months after anthracycline-comprising chemotherapy. Children leukemia solid tumors who had chemotherapy were enrolled study. ECHO MUGA performed all before course month of completing Cumulative anthracycline doses per body surface calculated. Left ventricular functions measured both techniques. Twenty-one a median...

10.1080/08880010500313603 article EN Pediatric Hematology and Oncology 2005-12-02

Several studies exist on the left atrial appendage function (LAA) in permanent fibrillation (AF). However, knowledge about right (RAA) is limited. We investigated RAA with TEE and tissue Doppler imaging (TDI) AF patients different etiologies evaluated predictive parameters of spontaneous echo contrast (SEC) thrombi.Patients developed due to three (20 mitral stenosis, 44 hypertension, 20 hyperthyroidism) 23 subjects sinus rhythm were included into study. was examined pulsed-wave TDI...

10.1111/j.1540-8175.2009.01027.x article EN Echocardiography 2010-03-16

<b><i>Background: </i></b>The aim of this study was to examine the cardiac effects anthracycline therapy based on speckle-tracking echocardiography (STE) and identify patients at risk for cardiotoxicity. <b><i>Patients Methods: included 35 breast cancer (BC) 15 lymphoma who were treated with anthracycline-based chemotherapy. Conventional STE performed 1 month prior after Longitudinal strain analysis via using automated functional imaging....

10.1159/000356850 article EN Onkologie 2013-01-01
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