5 doctors weighed in:
Is atrial fibrillation or flutter a more serious condition?
5 doctors weighed in

Dr. Dennis Clifford
Internal Medicine - Pulmonary Critical Care
3 doctors agree
In brief: Both can be
Atrial fibrillation and flutter are both common arrythmias.
Flutter tends to degenerate into fibrillation; the difference is that flutter tends to be regular and fibrillation irregular. Generally speaking, irregular is worse than regular because there is a higher risk of clots forming in the heart which can then cause strokes and other potential problems. Most flutter will become fibrillation.

In brief: Both can be
Atrial fibrillation and flutter are both common arrythmias.
Flutter tends to degenerate into fibrillation; the difference is that flutter tends to be regular and fibrillation irregular. Generally speaking, irregular is worse than regular because there is a higher risk of clots forming in the heart which can then cause strokes and other potential problems. Most flutter will become fibrillation.
Dr. Dennis Clifford
Dr. Dennis Clifford
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Dr. Ryan Cooley
Internal Medicine - Cardiology
In brief: Same
They both are risk factors for stroke and can cause similar symptoms.
The main difference is that flutter is easy to cure by ablation.

In brief: Same
They both are risk factors for stroke and can cause similar symptoms.
The main difference is that flutter is easy to cure by ablation.
Dr. Ryan Cooley
Dr. Ryan Cooley
Thank
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