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 ...

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 ...

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

BitMEX co-founder Arthur Hayes is fairly confident that Bitcoin’s drop to $77,000 marks the “bottom,” as quantitative ...

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 ...

The QT/QTc intervals are normal (280/440 msec). Prominent atrial waveforms occur before each QRS complex (^); they are negative in leads I and aVF and positive in leads aVR and V1 (^). A second ...

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 ...

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 ...