What’s the difference between paroxysmal and persistent atrial fibrillation?

Paroxysmal atrial fibrillation comes and goes on its own. Episodes start suddenly, can last anywhere from a few minutes to a few days, and many people have long symptom-free periods in between. Over time, episodes may become more frequent or last longer, which can influence treatment decisions.

Persistent atrial fibrillation lasts longer than 7 days and usually doesn’t settle without treatment. It tends to be more continuous and can cause more noticeable symptoms. In some cases, persistent AF may progress over time, making early management important. Your cardiologist will assess which type of AF you have, as this helps guide the most effective treatment plan, including whether ablation is likely to help.