Recently had a long bout of a-fib so severe was hospitalized with shortness of breath
and heartrate near 200. Was put on
Metoprolol (beta-blocker) and Xarelto (anticoag), and heartrate still was high, so beta-blocker was doubled to 100mg day (50 am, 50 pm). After about a month, had the cardioversion procedure, which stabilized heartrate. Beta-blocker reduced to 50 mg a day. About a month later, had Echo-cardio test and things had "returned to normal.