Atrial flutter is one of the more common abnormal heart rhythms (arrhythmias). It’s caused by an abnormal electrical circuit in the upper chambers of the heart (atria) that makes the atria beat quickly and flutter instead of fully squeezing.
Atrial flutter is one of the more common abnormal heart rhythms (arrhythmias). It’s caused by an abnormal electrical circuit in the upper chambers of the heart (atria) that makes the atria beat quickly and flutter instead of fully squeezing.