Practice Level 3 Case 18: A 56-Year-Old Woman in the Cardiac Clinic History Diagnosis History A 56-year-old woman with a non-ischemic cardiomyopathy is seen in the cardiac clinic for a reassessment: Diagnosis Atrial tachycardia with variable AV conduction Atrial rate 200/min, ventricular rate 77/min Non-specific ST abnormality ECG ID: E654 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register