نتایج جستجو برای: prolonged qtc interval
تعداد نتایج: 283643 فیلتر نتایج به سال:
BACKGROUND In a recent cohort study, prolongation of the corrected QT interval (QTc) was associated with an independent increased risk of sudden cardiac death (SCD). We evaluated determinants of prolonged QTc and the relationship of prolonged QTc to SCD risk among patients with coronary artery disease in the general population. METHODS AND RESULTS A case-control design was used. Cases were SC...
OBJECTIVE Glycemic variability (GV) is a new term with the episodes of hyper and hypoglycemia in diabetic patients. Both prolonged QT interval and QTd are potential risk factors for malignant ventricular arrhythmias affecting the mortality of different groups of patients including diabetes mellitus. In this study, we aimed to evaluate if the glucose variability increasing the QTc interval and Q...
Heart Rate-Corrected QT Interval Helps Predict Mortality after Intentional Organophosphate Poisoning
INTRODUCTION In this study, we investigated the outcomes for patients with intentional organophosphate poisoning. Previous reports indicate that in contrast to normal heart rate-corrected QT intervals (QTc), QTc prolongation might be indicative of a poor prognosis for patients exposed to organophosphates. METHODS We analyzed the records of 118 patients who were referred to Chang Gung Memorial...
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: prolongation of qt interval is one of the most important abnormalities in cardiovascular system of cirrhotic patients. the aim of this survey was determination of propranolol effect on frequency adjusted qt interval (qtc). materials and methods: thirty six cirrhotic patients (m/f=20/16, mean age:56 â± 3.8 years) and 40 healthy age and sex matched controls (m/f=25/15, mean age: 58 â±...
Objective Prolonged QT interval predisposes to ventricular arrhythmias and sudden cardiac death. However, the association between QT interval and mortality by the level of pre-existing kidney function has not been investigated. Methods We followed 6565 participants from the National Health and Nutrition Examination Survey III for a median of 13.3 years. Sample divided according to corrected Q...
Sudden death is a leading cause of mortality in sickle cell disease, implicating ventricular tachyarrhythmias. Prolonged QTc on an electrocardiogram (ECG), commonly seen with myocardial ischemia, is a known risk for polymorphic ventricular tachycardia (VT). We hypothesized that prolonged QTc is associated with mortality in sickle cell disease. ECG were analyzed from a cohort of 224 sickle patie...
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