Practice Level 2 Case 61: An 86 Year-Old Man seen in Cardiac Clinic History Diagnosis History An 86 year old man with remote history of myocardial infarction is seen in the cardiac clinic for routine follow-up. He is asymptomatic. Diagnosis Sinus bradycardia, rate 55/min First degree AV block, PR = 260ms Right bundle branch block Left anterior fascicular block ECG ID: E814 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register