When I was getting discharged from the hospital in Seattle (Summer vacation? 6/30/14), they found an irregular pulse, so did some tests and figured out it was AFib (atrial fibrillation). They thought it was a temporary reaction to the anesthesia and would go away, but it didn't. After seeing a cardiologist in Fairbanks, he recommended ablation therapy, where they normalize (tune up) the heart to eliminate the irregular nerve impulses that cause AFib. Since it wasn't available here, we had to go to Anchorage, where they did the procedure this past week. Apparently, it was successful. We won't know for a while yet, since it occasionally returns, but for now I got my rhythm back.
More on AFib at: http://www.mayoclinic.org/diseases-conditions/atrial-fibrillation/multimedia/img-20096441
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