Among those experiencing AF over the past 20 years, a group of them use the term 'lone AF'. The implication is that their bouts are exceedingly rare, or even limited to one defined and confirmed event that has never repeated (to their knowledge). The term is no longer in favour because even a single event, short as it may be, is an indication that the person's myocardium is beginning a process of disorder electrically. Many go months without having recurring AF or SVT, or PACs, as examples of the typical arrhythmias, but then they'll get another, and then another, and then two inside of two weeks, and finally they're in AF for an hour each day...but usually many hours each day. Some have it come on only when they go to bed at night (must be horrible if that is something that happens reliably, and just when you want to relax). For others, it only happens when they strain, including when lifting, coughing, having a difficult bowel movement, etc. That it happens at all means that unwanted electrical signaling is getting through to the affected area when it should not be. It tends to be progressive, and therefore the cardiologist is correct....for almost all cases; in time, maybe again next month, maybe in ten years, you'll have another event. It happened that way for me, and has happened exactly that way for millions of others, including many whom have reported their experiences here and on afibbers.org forum.

your cardiologist is not God. I remember in Oklahoma when a weather forecaster predicted 100 percent chance of violent storms that day. Not one leaf moved the whole day and night.