Multifactorial: It is difficult to say if your symptoms are in fact due to afib. If you are in atrial fibrillation a significant amount of time, that might explain sob. Beta blockers can make some patients short of breath so that is another possibility. Rate seems pretty well controlled but you might consider an ambulatory monitor say for 3 weeks to determine your actual afib burden. Ask your cardiologist.
Answered 7/4/2013
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