conclusions these results revealed that cirrhosis produce prolonged qt interval and sour cherry extract has an ameliorating effect on qt prolongation probably via its antiarrhythmic property. results results were analyzed by using student t-test and one-way anova. p < 0.05 was considered as significant level. the qt interval was calculated using the bazettʼs formula and corrected qt (qtc) was o...

We read with great interest the article by Bestas et al1 entitled “The effect of adrenaline on desflurane-induced prolonged QTc interval: a randomized double-blind trial”, which is published in the current issue of European Review for Medical and Pharmacological Sciences. The Authors1 investigated the effect of adrenaline on desflurane-induced prolonged corrected QT (QTc) interval. They mention...

BACKGROUND Myocardial ischemia is one of several causes of prolonged QT dispersion. The aim of this study was to evaluate the effect that percutaneous coronary intervention has on the depolarization and repolarization parameters of surface electrocardiography in patients with chronic stable angina. METHODS We assessed the effects of full revascularization in patients with chronic stable angin...

Previous studies assessing effect of ischemia on ventricular repolarization are mostly directed toward patients with coronary artery disease (CAD); however, similar reports on cardiac syndrome X (CSX) are scarce. Whether microvascular dysfunction of CSX and ischemia induced by CAD produce comparable effect on ventricular repolarization is unclear and deserve further studies. In the present stud...

A 32-year-old male developed recurrent ventricular tachycardia after taking mega doses of loperamide and famotidine in order to experience an opiate-like euphoric effect. He was taking up to 200 mg of loperamide and multiple doses of famotidine each day. He developed palpitations and syncope. Electrocardiography demonstrated ventricular tachycardia and QT interval prolongation (corrected QT int...

BACKGROUND Cumulative exposure to lead has been shown to be associated with depression of electrocardiographic conduction, such as QT interval (time from start of the Q wave to end of the T wave). Because iron can enhance the oxidative effects of lead, we examined whether polymorphisms in iron metabolism genes [hemochromatosis (HFE), transferrin (TF) C2, and heme oxygenase-1 (HMOX-1)] increase ...