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 ...

Objective: To assess health care practitioners' ability to correctly measure the QT interval, and to identify factors and medications that may increase the risk of QT-interval prolongation and ...

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 ...

The QT interval is the time from the beginning of the QRS complex, representing ventricular depolarization, to the end of the T wave, resulting from ventricular repolarization. The normal QT interval ...

The duration of the QT interval as measured by 12-lead electrocardiography is a measure of myocardial repolarization and is widely used to describe cardiac abnormalities, to determine the presence of ...

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 ...

Having access to less intrusive QT interval measurement with flexibility around the time and place of the appointment is important 3.1 Psychiatric service user experts explained that it is important ...

HealthDay News — For healthy females, oral progesterone administration attenuates drug-induced QT interval lengthening, according to a study published online April 6 in JACC: Clinical ...