Atrial premature beats, or atrial precontractions, are generally not harmful. Atrial pre-systole refers to atrial agitation that originates in any part of the atrium other than the sinus node (the normal pacing point of the heart). Atrial pre-systole is mostly functional, and about 60% of normal adults are found to have atrial pre-systole after 24-hour electrocardiographic (ECG) monitoring, so it is generally not harmful. In a variety of organic heart disease such as pulmonary heart disease, coronary artery disease, cardiomyopathy and other patients, the incidence of atrial pre-systole increased significantly, and can often cause other rapid atrial arrhythmia, if the cause of atrial fibrillation or atrial flutter (atrial flutter and atrial fibrillation for the atrial arrhythmia of a kind, which will lead to blood out of the heart obstacle) is a greater danger. Atrial pre-systole does not usually require treatment, but it should be treated when there are significant symptoms or when supraventricular tachycardia is triggered by atrial pre-systole. Alcohol, tobacco and coffee can trigger atrial pre-systole and patients should be counseled to stop or reduce their consumption. Therapeutic drugs include propafenone and amiodarone. If you experience frequent palpitations (rapid heartbeat, often accompanied by panic), which may be accompanied by fatigue and chest tightness, go to a regular hospital and follow your doctor’s advice for early treatment.