Practice Level 3 Case 143: A 43-Year-Old Man in the Renal Dialysis Unit History Diagnosis History This 43-year-old man is treated in the dialysis unit for chronic renal failure: Diagnosis Sinus rhythm with first degree AV blockLeft atrial enlargementLeft ventricular hypertrophy with repolarization abnormalityProlonged QT (QT/QTC = 444/506 msec) ECG ID: E189 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register