BACKGROUND Stress nuclear myocardial perfusion imaging (MPI) is an established method for diagnosis and prognosis of coronary artery disease (CAD). However, radiation exposure limits its clinical application. Magnetocardiography (MCG) has been proposed as a non-contact, rapid and non-radiation technique with high reproducibility. The aim of the study was to evaluate the diagnostic efficacy of r...

BACKGROUND Many medications commonly used in hospitals can cause prolonged corrected QT interval (QTc), putting patients at risk for torsade de pointes (TdP), a potentially fatal arrhythmia. However, documentation of QTc for hospitalized patients receiving QT-prolonging medications is often not consistent with American Heart Association standards. OBJECTIVE To examine effects of education and...

BACKGROUND Patients with transfusion-dependent beta-thalassemia major (TM) are at risk for myocardial iron overload and cardiac complications. Spatial repolarization heterogeneity is known to be elevated in patients with certain cardiac diseases, but little is known in TM patients. The purpose of this study was to evaluate spatial repolarization heterogeneity in patients with TM, and to investi...

Prolongation of QTC is an electrocardiographic finding indicating prolongation of cardiac repolarization, which increases the risk for torsades de pointes, a form of ventricular tachycardia that can lead to sudden cardiac death. Sudden cardiac death in the setting of antipsychotic treatment was first described in the 1960s with thioridazine; since that time, many other psychotropic medications ...

OBJECTIVE The aim of this study was to examine whether or not levofloxacin has any relationship with QT prolongation in a real clinical setting by analyzing a clinical data warehouse of data collected from different hospital information systems. METHODS Electronic prescription data and medical charts from 3 different hospitals spanning the past 9 years were reviewed, and a clinical data wareh...

OBJECTIVE The interlead variation in duration of the Q-T interval on the surface electrocardiogram (Q-T interval dispersion [QTd]) has been shown to predict mortality in type 2 diabetic patients. We evaluated the prevalence of QTd prolongation in the EURODIAB population and its relation to corrected Q-T interval (QTc), sex, age, duration of diabetes, blood glucose control, and complications. RE...

BACKGROUND A variety of ECG changes occur as an aftermath of stroke. Prolongation of the QTc interval is a well-documented change. We analyzed QTc interval prolongation among patients with acute hemorrhagic strokes. METHODS This observational study was conducted at the Emergency Department of Sulaymaniyah General Teaching Hospital and Shar Hospital from September 1st, 2014 to August 31st, 201...

BACKGROUND In myocardial infarction patients, heart rate-adjusted QT interval (QTc), an electrocardiographic indicator of sympathetic balance, is prognostic for survival. METHODS AND RESULTS In a 28-year follow-up, the association between QTc and all-cause, cardiovascular, and ischemic heart disease mortality was studied in a population of 3,091 apparently healthy Dutch civil servants and the...

upload poisoning is one of the most dangerous and common poisoning in iranian children. depression of the respiratory and central nervous systems may lead to significant toxicity. even low doses of uploads are dangerous in pediatrics under 6 years old. methadone is the most toxic of the uploads; small doses as low as a single tablet can lead to death. according to this information we decided to...

BACKGROUND In congenital long-QT syndrome, age, sex, and genotype have been associated with cardiac events, but their effect on the trend in QTc interval has never been established. We, therefore, aimed to assess the effect of age and sex on the QTc interval in children and adolescents with type 1 (LQT1) and type 2 (LQT2) long-QT syndrome. METHODS AND RESULTS QTc intervals of 12-lead resting ...