QRS

  1. LAD  /  LAFB
  2. RAD  /  LPFB
  3. Anterior rotation
  4. Posterior rotation
  5. LVH
  6. RVH
  7. LVH and RVH
  8. Low voltage
  9. Electrical alternan
  10. LBBB
  11. RBBB
  12. IVCD
  13. Aberrant conduction
  14. WPW
  15. Ventricular pacing