Atrial flutter and atrial fibrillation (AFib) both occur when the electrical signals that make your heart chambers contract occur faster than typical. However, they differ in the organization of ...

Atrial flutter is a type of abnormal heart rhythm that causes a rapid but regular heartbeat. It can lead to severe complications without treatment from a doctor. Atrial flutter occurs when the upper ...

Atrial fibrillation (AFib) and atrial flutter are both arrhythmias, or atypical heart rhythms. Both conditions share similar causes, risk factors, symptoms, and treatments but differ in other ways.

When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...