Whether sinus arrhythmia st changes are serious or not cannot be generalized. Some of these physiological changes are not serious, while some pathological changes can be more serious.
Sinus arrhythmia is when the heart beats at intervals greater than 0.12 seconds per beat, whereas st alterations are when the st segment appears to be shifted up or down. Generally, sinus arrhythmia is associated with the respiratory cycle, mostly seen in some adolescents, with no clear significance; some normal young people can also appear st segment changes without any discomfort, which are normal phenomena and not serious.
Some pathologic st elevation or depression and other changes, it may be the heart’s blood supply obstacles or acute pericarditis, viral myocarditis and other diseases, if this is also accompanied by panic, chest tightness and other symptoms, may be more serious.
If the examination suggests sinus arrhythmia st, go to the hospital as soon as possible, to clarify the cause of the disease, in the doctor’s advice and guidance for treatment.