Association between ventricular premature contraction burden and ventricular repolarization duration.

Objective: Premature ventricular contraction is generally known as benign in the absence of structural heart disease; however, premature ventricular contraction-induced left ventricular systolic dysfunction or ventricular arrhythmias are defined in some cases. Ventricular repolarization duration differs between myocardial cells, which causes myocardial electrical heterogeneity and is thought to be responsible for ventricular arrhythmias. In our study, we aimed to evaluate the association of ventricular repolarization parameters including Tp-Te interval, Tp-Te/QT ratio, and QRS-T angle with premature ventricular contraction frequency in patients with premature ventricular contraction burden.

A New Current to The Armamentarium: Is the CHA2DS2-Vasc-HS Score Predictive of Low Left Internal Mammary Artery (LIMA) Flow in Patients Underwent Coronary Bypass Surgery?

Introduction: Left internal mammary artery (LIMA) grafts should be used in patients undergoing CABG. No other procedure results in patency equivalent to that of the left anterior descending coronary artery (LAD)-LIMA bypass graft. The CHA2DS2-Vasc-HS scoring system can be used to successfully predict CAD severity in stable CAD patients.

Comparison of IQOS (heated tobacco) and cigarette smoking on cardiac functions by two-dimensional speckle tracking echocardiography.

Aims: IQOS is a novel tobacco product claimed to be safer than conventional cigarette smoking due to the heat-not-burn system. This study aimed to evaluate the acute effects of IQOS smoking on myocardial systolic and diastolic functions and also compare the acute impacts of IQOS with cigarette smoking.

Methods: In this prospective study, twenty-seven healthy participants who were using IQOS were included.

[Percutaneous closure of secundum atrial septal defects in pediatric and adult patients: short- and mid-term follow-up results].

Objectives: We aimed to evaluate the short- and mid-term results of patients with atrial septal defect (ASD) who were treated with percutaneous closure.

Study Design: Seventy-nine patients with secundum ASD (54 female and 25 male; mean age 26.2±17.

[Percutaneous closure of patent ductus arteriosus: short term results].

Objectives: To evaluate short term results of percutaneous patent ductus arteriosus (PDA) closure in a cohort of pediatric and adult patients following closure with the Amplatzer Ductal Occluder (ADO-1 and ADO-2) and Amplatzer Septal Occluder (ASO) devices.

Study Design: A total of 48 patients (17 male and 31 female; range 3 to 39 years) were included in this study. All patients were evaluated with transthoracic echocardiography (TTE) before intervention.

Correlations between oxidative DNA damage, oxidative stress and coenzyme Q10 in patients with coronary artery disease.

The correlation of coronary artery disease (CAD) with pro-oxidant/antioxidant balance and oxidative DNA damage was investigated. Seventy-seven patients with CAD and 44 healthy individuals as control were included in this study. The comparative ratios of ubiquinol-10/ubiquinone-10, 8-hydroxy-2(')-deoxyguanosine/deoxyguanosine and the level of MDA measured by HPLC and the activities of GPX and SOD by colorimetric approach in blood samples obtained from patients with CAD were unraveled.

Trace elements, heavy metals and vitamin levels in patients with coronary artery disease.

Aim: In the present study, we aimed to assess serum concentrations of zinc (Zn), copper (Cu), iron (Fe), cadmium (Cd), lead (Pb), manganese (Mn), vitamins A (retinol), D (cholecalciferol) and E (α-tocopherol) in patients with coronary artery disease (CAD) and to compare with healthy controls.

Methods: A total of 30 CAD patients and 20 healthy subjects were included in this study. Atomic absorption spectrophotometry (UNICAM-929) was used to measure heavy metal and trace element concentrations.

Accelerated atherosclerosis in haemodialysis patients; correlation of endothelial function with oxidative DNA damage.

Background: Accelerated atherosclerosis is the major cause of mortality in patients on chronic haemodialysis (HD). The aim of this study was to evaluate the relationship between oxidative DNA damage [8-hydroxy-2'-deoxyguanosine/deoxyguanosine ratio (8-OHdG/dG ratio)], oxidative stress biomarkers and endothelial function in HD patients as an indicator of atherosclerosis.

Methods: Forty-four chronic HD patients without known atherosclerotic disease and 55 age- and sex-matched healthy individuals were included in the study.

[The levels of the leptin and adiponectin according to body mass index and their relationship with oxidative parameters].

Objective: Obesity is an important risk factor of atherosclerosis and its prevalence in humans is increasing. Recent studies suggest that the leptin and adiponectin play important roles in obesity, and they are associated with complications of obesity. However, the mechanism of effects has not been outstandingly established.