Other symptoms may include: dizziness, fainting, chest tightness or chest pain, difficulty breathing and tiredness. Most people with atrial flutter notice a rapid pulsation from the heart beating quickly in the chest. When this orderly flow of electricity is disrupted by a short circuit, abnormal heart rhythms result. The heart uses electrical currents to tell the heart cells when to contract so that they contract in a coordinated fashion. The heart is composed of millions of heart cells. How does the short circuit cause atrial flutter? In many cases the cause of the atrial flutter cannot be determined (this is known as idiopathic atrial flutter). Some causes of electrical short circuits in the heart include high blood pressure, heart valve disease, heart muscle disease, previous heart attacks, congenital heart disease (heart disease present since birth), lung disease and previous heart surgery. What causes atrial flutter?Ītrial flutter is caused by an electrical short circuit in the heart. Atrial flutter can last for a few minutes or may continue indefinitely (or until stopped with treatment). The heart rate during atrial flutter is often between 100 and 300 beats-per-minute. The normal resting heart rate is about 70 beats-per-minute. Atrial flutter causes the heart to beat very rapidly. Atrial flutter is an abnormal heart rhythm.
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