If some symptoms of cardiac arrhythmias do not pose a serious health hazard and can disappear on their own over time, others only exacerbate the ailment that caused them and lead to its rapid development. If some symptoms of cardiac arrhythmias do not pose a serious health hazard and can disappear on their own over time, others only exacerbate the ailment that caused them and lead to its rapid development. Among cardiovascular diseases, a special place is occupied by rhythm disturbance, which in medical terminology is referred to as "cardiac arrhythmia." Most often, this disease is not dangerous, but sometimes there may be undesirable consequences in the form of surgical intervention.