A premature ventricular contraction occurs when a focus in the ventricle generates an action potential before the next scheduled sinoatrial nodal action potential. Premature, occurring earlier ...

The continuous stretching of cardiac muscle cells during exercise could trigger arrhythmias in athletes ... Detraining decreases the mechanical stretch by shortening the action potential duration and ...

Scar-dependent ventricular tachycardia, or VT, is a dangerous, sporadic, rapid heart rhythm caused by scar tissue on the heart muscle from ... be used to identify potential treatment areas without ...