Extrasystole is an extraordinary excitation or contraction of the heart. It is considered the most common arrhythmia in clinical practice.
Extrasystoles are divided into two large groups - natural and pathological. The first option is a normal variant for extrasystole, and the second is a sign of some serious disruption of the cardiovascular system. There are both single-cycle and multi-cycle (two-cycle, etc.) variants of pathological forms. Rhythm disturbances occur against the background of angina pectoris, heart attack or hypoxia, appear most often at night during sleep and are associated with