Practice Level 3 Case 56: A 51-Year-Old Woman in the Cardiac Clinic History Diagnosis History A 51-year-old woman is seen for follow-up in the cardiac clinic 4 years after cardiac surgery: Diagnosis Ectopic atrial rhythm, 75/min Incomplete right bundle branch block (iRBBB) This patient had successful atrial septal defect repair. ECG ID: E419 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register