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 ...

A new radar device, developed by Dr. George Shaker and his research team at the University of Waterloo, could help detect ...

Whereas someone exhibiting marked prolongation of the QT interval with QTc exceeding 500 ms who was just externally defibrillated from torsades de pointes while swimming poses negligible diagnostic ...

Patients with LQTS have impaired adaptation of the QT interval in response to changes in heart rate. A study by Dr Sami Viskin and colleagues has now shown that this maladaptation is exaggerated ...

Dr. George Shaker has huge hopes for a small radar device he developed with a team of researchers at the University of Waterloo. An engineer who has pursued the possibilities of radio waves for more ...

called the QT interval, is longer than normal, which means there is a problem with the electrical system that controls the heartbeat. Hydroxyzine, in rare cases, may also cause a condition called ...