The BasicsWhat Is Atrial Fibrillation?

Atrial fibrillation, or AFib, is a quivery, fluttery heartbeat. You might also hear the doctor call it arrhythmia.

The Costs of Atrial Fibrillation (AFib)

If you have AFib, treating it cuts your risk of having a stroke. But it can be costly, even if you have insurance.

Latest Research on Atrial Fibrillation

Today, researchers are still hard at work on finding ways to treat, manage, and prevent AFib and its complications.

TypesWhich Type of Atrial Fibrillation Do You Have?

AFib doesn’t so much have types as it has durations. Doctors classify it by how long it lasts, or what causes it.

What Is Paroxysmal Atrial Fibrillation?

When your heartbeat returns to normal within 7 days, on its own or with treatment, it's known as paroxysmal AFib.

AFib With Rapid Ventricular Response (RVR)

Atrial fibrillation with rapid ventricular response is a fancy name for an irregular heartbeat.

What Is Lone AFib?

Some younger people with no sign of heart disease or other health issues can also get AFib. Some experts call it lone AFib.