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. It can result in fast heart rates and a heart that doesn’t work as well as it should.
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. It can result in fast heart rates and a heart that doesn’t work as well as it should.