Background: Both QTd and Tp-e/QT ratio have been linked to increased risk for arrhythmia and mortality. But Significance of QTd in STEMI Patients is not documented in all studies and Tp-e/QT ratio is a novel index which is understudied in these patients. Therefore, the present study is aimed to determine the short term, in-hospital prognostic value of QTd and Tp-e/QT ratio in thrombolysed STEMI...

BACKGROUND The purpose of this study was to examine the effects of carvedilol therapy on autonomic control of the heart and QT-interval dispersion (QTd) among children with idiopathic dilated cardiomyopathy (DCM) whose symptoms were not adequately controlled with standard congestive heart failure therapy. MATERIAL AND METHODS Patients with DCM who were treated with carvedilol were enrolled in...

Abstract Background Patients with anorexia nervosa (AN) are at higher risk of sudden cardiac death. Although the underlying aetiology for this association remains unclear. It may be related to prolongation QT interval, which can degenerate into fatal ventricular arrhythmias. However, presence prolonged heart rate-corrected interval (QTc) in AN controversial, and two previous meta-analyses on QT...

We read with great interest the article entitled 'A 24-hour ambulatory ECG monitoring in assessment of QT interval duration and dispersion in rowers with physiological myocardial hypertrophy' by Lutfullin IY et al. [1] published in the Biology of Sport journal. In the study, the effects of myocardial hypertrophy on cardiac repolarization parameters were investigated in endurance athletes using ...

BaCKgRound: The effects of varenicline, an effective drug for smoking cessation, on atrioventricular and ventricular conductance remain unknown. oBjeCTive: To evaluate the effects of varenicline on heart rate, PR interval, QT interval and QT dispersion (QTd). MeTHodS: A total of 60 smokers were prospectively enrolled in the present study. Twelve-lead electrocardiogram recordings were obtained f...

We read the article entitled ‘‘The effect of esmolol on corrected-QT interval, corrected-QT interval dispersion changes seen during anesthesia induction in hypertensive patients taking an angiotensin-converting enzyme inhibitor’’ by Ceker et al. with interest.1 The authors investigated the effects of esmolol on the hemodynamic, correctedQT (QTc) interval and corrected-QT interval dispersion (QT...

We read the article titled “Influence of the left ventricular types on QT intervals in hypertensive patients” by Kunisek et al. (1) published in the January issue of Anatol J Cardiol with great interest. In this welldesigned research, the authors investigated the effects of left ventricular hypertrophy (LVH) types on cardiac repolarization parameters and severity of ventricular arrhythmias usin...

Introduction: Coronavirus disease 2019 (COVID-19) has been associated with cardiac arrhythmias. Several electrocardiographic markers have used to predict the risk of arrhythmia in patients COVID-19. We aim investigate (ECG) ventricular repolarization indices COVID-19.
 Methodology: performed a comprehensive systematic literature search from PubMed, EuropePMC, SCOPUS, Cochrane Central Datab...