The QT interval is the time from the beginning of the QRS complex (ventricular depolarization) to the end of the T wave (ventricular repolarization). The normal QT interval is controversial and ...

February 3, 2006-- A recent analysis of the prospective, population-based Rotterdam Study found that prolongation of the heart-rate corrected QT (QTc) interval increased the risk of sudden cardiac ...

A recent report from Japan describes a new nomogram of normal QT intervals at various heart rates. Based on automatic measurements of 24 h Holter electrocardiogram recordings in healthy individuals, ...

In the past decade, the single most common cause of the withdrawal or restriction of the use of drugs that have already been marketed has been the prolongation of the QT interval associated with ...

What is the best way to estimate the QT interval on the ECG? What is the equation for QTc? A good way to estimate if the QT interval prolonged is by checking its relation to the R-R interval. If the ...

March 24, 2009 (Munich, Germany and Boston, MA) - Two independent genomewide association studies (GWAS) have identified common variants at 10 gene regions that modulate the QT interval, a measure of ...

Arsenic trioxide (ATO) is a highly effective agent for the treatment of acute promyelocytic leukemia (APL). QT interval prolongation is common with ATO and can pose a barrier to effective ...

Uncertainty remains regarding the value of heart-rate-corrected QT interval (QTc) prolongation on electrocardiogram for predicting cardiovascular disease (CVD), particularly among Asian populations.