Is premature atrial contraction a heart attack?

Atrial premature beats refer to atrial extrasystoles, which may be caused by heart disease or other factors.

If the patient's accompanying symptoms are palpitations, chest tightness, etc., it usually occurs after stress and strenuous exercise. No abnormality is found in the heart examination. At this time, it is not a heart disease, but usually caused by sympathetic nerve excitation. Sympathetic nerve excitation will cause myocardial spasm, resulting in abnormal heartbeat rhythm, causing atrial extrasystoles. If the patient's accompanying symptoms are severe chest pain, pale face, wheezing, etc., coronary artery blockage occurs in the heart examination, which is caused by heart disease. After heart disease occurs, abnormal blood supply to the heart affects the beating rhythm of the myocardium, resulting in premature atrial contraction.