The human heart beats 80,000-120,000 times a day. Long-term ECGs record every heartbeat, and the recording is then ...

we monitored patient electrocardiogram (ECG) readings and vital signs. We compared long-term changes in heart rate, heart rate variability, QT interval, and blood pressure between the two groups.

It has also been possible to obtain long-term ambulatory ECG recordings ... CAST trials showed increased sudden death with few antiarrhythmics QT interval prolongation 4–6% 1.5-fold increase ...

Smartwatches and smart devices offer possibilities for ambulatory ECG recording and therefore measuring and monitoring the QT interval. We performed a systematic review of studies on smartwatches and ...

Long QT syndrome (LQTS) is an inherited genetic disorder associated with QT prolongation on the electrocardiogram ... In adulthood, an increased QTc interval remains a significant independent ...