What Is Paroxysmal Atrial Fibrillation?
Episodes of this arrhythmia occur intermittently and may last less than seven days. It may increase your risk of having other episodes of irregular heartbeat. AFib is categorized by how long the arrhythmia lasts. Cecilie_Arcurs / Getty Images Some people with AFib will never experience symptoms. Paroxysmal atrial fibrillation symptoms last seven days or less. If AFib lasts longer than a week, it is persistent atrial fibrillation. If AFib lasts more than a year, it’s called long-standing persistent AFib....