I am a 50-year-old male who has completed several marathons over the last 20 years. At my last physical examination, my electrocardiogram came back with a reading of "sinus arrhythmia" and "incomplete right bundle branch block." My physician is not concerned about these findings, but should I be?
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Lee
D001146:Arrhythmia, Sinus; D002037:Bundle-Branch Block; D006801:Humans; D008297:Male; D008875:Middle Aged; D012420:Running