A Question Fox: I was not aware that a good friend of mine and superb athlete was suffering from AFIB. He is a triathlete, has won state cycling championships, and is the swimming coach of the Maddogs (world's largest triathlon club here in the St. Petersburg area). He telephoned me last night to tell me that he had had a pacemaker/defibrillator combination implanted in his chest. It is tweaked to limit is max heart rate to 130. He indicated that he had "silent" AFIB meaning he would not be aware that he was suffering an episode. I find that phenomenon difficult to understand in that when I suffered my two events, I was immediately aware of the rapid, irregular beats. I wonder why one would undergo the implantation procedure rather than look in to an ablation procedure such as yours? Any thoughts - I am going to visit him later in the afternoon.