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Limited exercise tolerance on sotalol
I am a 71 year old male with a 20 year history of AFib. It was controlled on medication (propafenone) until about 18 months ago. Had a cryo ablation that did not work. Was started on sotalol and it works well to control the AF. I am grateful for that.
There is a problem, however, due to the betablocker effects of sotalol that limits my max HR to about 60. This significantly limits my ability to exercise (which I enjoy), especially in hot weather. My doctor has suggested that we could try dofetilide or amiodarone. They both look like they has significant side effects.
Any thoughts or suggestions?