Prolonged premature beats are not necessarily coronary heart disease, prolonged premature beats may be myocardial infarction, myocarditis and other diseases, coronary heart disease may also appear prolonged premature beats. You should go to the regular hospital for further examination to clarify the cause of the disease and standardize the treatment. Premature beats are ectopic beats that occur early in the heart, more commonly known as atrial premature beats and ventricular premature beats, which are common arrhythmias. Premature beats can also be seen in normal people in emotional excitement, nervousness, excessive alcohol consumption, etc. caused by the attack. In more severe cases of myocardial ischemia, the myocardial tissue as well as the conduction system may be affected, and various types of arrhythmias may occur. If myocardial ischemia occurs repeatedly, prolonged premature beats may occur, and the more common ones are myocardial infarction, myocarditis, and rheumatic heart valve disease. And coronary heart disease is due to coronary artery atherosclerosis caused by the narrowing of the lumen or even occlusion, it is ischemia as the main manifestation of the disease. When myocardial ischemia occurs frequently and affects the normal electrical activity of the heart, long-term premature beats may occur. When prolonged premature beats occur, it is recommended to seek prompt medical attention, follow the doctor’s instructions for further examination, clarify the cause with the help of the doctor, and carry out targeted treatment or therapy.