I went to the ER in 1981 with Ventricular fibrillation. They put me out and zapped my heart with the paddles to reset it. They said I had WPW. They gave me some pills and said if it happens again they would have to zap a nerve in my heart. That was the only time it happened.
They told me that a one off like that happens about 30% of the time. Unfortunately, with me A Fib was not a one off and it didn’t stay gone. Oh well, someone’s got to be in that lucky 30% - good for you!