Did you Dr. not go over the results with you? If not, you should follow-up with him/her to make sure they give you a treatment plan. They should have explained all of this to you.
While someone here might have some insight for you, please know we are not doctors so we can't give you specific advice. I have heard though that EKGs are not good at determining atrial size so you should ask about getting an echo if you have not done so already.
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