For example, palpitations that last for a second and are described as an "instant flip-flopping" or a "skipped beat" suggest PACs or PVCs. In contrast, those that last minutes or longer are more ...

He warned: "Palpitations are commonly felt by people ... an actual abnormal heart rhythm - anything from extra beats like PVCs (premature ventricular contraction) to arrhythmias like atrial ...