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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 ...

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

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 ...

(HealthDay)—Azithromycin is frequently prescribed to hospitalized patients despite the presence of risk factors for QTc prolongation, according to a study published in the January issue of the Journal ...

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 ...

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 ...

Austedo and Austedo XR are prescribed to treat chorea related to Huntington’s disease and tardive dyskinesia in adults. They can cause side effects ranging from mild, such as drowsiness and insomnia, ...

Findings in Nature Genetics support the idea that balance between sodium and potassium are essential to the heart. An international group of scientists identified 10 genes connected to changes in QT ...

SAN FRANCISCO, CA—Consuming a large quantity of grapefruit juice has effects on the QT interval in healthy adults similar to those seen with moxifloxacin, an antibiotic with known QT-prolonging ...

AliveCor's at-home EKG device won FDA clearance to calculate a heart's QT interval, a measurement of how long it takes the ventricles to contract and relax. This is vital given that some drugs can ...