Supra-ventricular tachycardia (SVT)

A rapid rhythm disturbance originating from the upper heart regions (above the ventricles)

Generally, rhythm disorders originating from the upper heart regions are considered to have a lower risk potential compared with those originating from ventricles, although the risk estimation depends on the rapidity and the duration of the disorder and on the basic health or disease status of the heart that must cope with it.