Interesting information posted here about possible vagus nerve triggers for AF. Wonder if the opposite might be true in some cases. The last time I went to ER in AF episode, it stopped the second my IV was inserted. I have terrible veins and it is always a painful process. Is it possible the shock of the IV contributed to end of the episode? My friend offered next time to stab me with a dull pencil for free! We have a quirky sense of humor.