Practice Level 4 Case 95: A 44-Year-Old Man with Chest Pain History Diagnosis History A 44-year-old man presents to the Emergency Department 4 hours after the onset of retrosternal chest pain: Diagnosis Sinus rhythm, 90/minLeft atrial enlargementLeft posterior fascicular blockAcute septal myocardial infarction ECG ID: E444 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register