In my case the surgery
was successful, and was a repair, not a replacement
, so my hope was high that I'd beat AFib with the next electrocardioversion. But, it seems my left atrial chamber had enlarged too much, I can no longer hold an electrocardioversion, longer than you, the last one lasted a week, but not long enough for it to be a solution.
Metoprolol controls my maximum HR well, if I take 100 to 150 mg a day my rest HR stays under 90.