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 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 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.