نتایج جستجو برای: qt interval
تعداد نتایج: 204750 فیلتر نتایج به سال:
introduction: prolongation of qt interval might result in dangerous cardiac arrhythmias, including torsades de pointes (tdp), consequently leading to syncope or death. a limited number of studies carried out in this respect to date have shown that qt interval might increase during pregnancy. on the other hand, it has been shown that each pregnancy might result in an increase in the risk of card...
AIM To reassess QT interval rate correction. BACKGROUND The QT interval is strongly and inversely related to heart rate. To compare QT intervals between different subjects with different heart rates requires the application of a QT interval rate correction formula. To date these formulae have inappropriately assumed a fixed relation between QT interval and heart rate. An alternative method of...
Background: Cirrhosis as the final stage of progressive fibrosis of liver can affect other organs such as lungs, kidneys and heart. "Cirrhotic cardiomyopathy" involves the electrophysiological abnormalities such as QT interval prolongation. We assessed correlation between corrected QT interval prolongation and severity of cirrhosis based on Child Classification in each ECG lead. ...
conclusions right ventricular pacing increases the qt interval without increasing the jt interval. our results confirm that jtc, as an index of repolarization, is independent of ventricular depolarization. therefore, it can be applied for predicting qtc in patients with lbbb. results stimulation from the rva increased the qtc from 456.20 ± 38.63 ms to 530.67 ± 47.73 ms at a cl of 600 (p < 0.000...
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