As more consumer-facing devices add features to measure the heart’s electrical activity, companies are looking for new ways to turn this data into valuable health information. AliveCor, a startup that ...

Plausible explanations for differences in the prognostic impact of prolonged QTc interval among the studies are the occurrence of chance, bias and uncontrolled confounding variables. Chance could have ...

The maternal heart significantly adapts to the circulatory needs of pregnancy, but the effect of pregnancy on ventricular repolarization is poorly understood. The aim of this study was to quantify ...

Inappropriate chemotherapy decisions may occur through use of a commonly used formula that overestimates the risk of a cardiac adverse event, warn researchers. Many cancer drugs carry a risk of QT ...

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 ...