- Right axis deviation
- Positive QRS complexes (with upright P and T waves) in aVR
- Lead I: inversion of all complexes, aka ‘global negativity’ (inverted P wave, negative QRS, inverted T wave)
- Absent R-wave progression in the chest leads (dominant S waves throughout)
These changes can be reversed by placing the precordial leads in a mirror-image position on the right side of the chest and reversing the left and right arm leads.
Accidental reversal of the left and right arm electrodes may produce a similar picture to dextrocardia in the limb leads (but with normal appearances in the precordial leads).
- Surawicz B, Knilans TK. Chou’s Electrocardiography in Clinical Practice. 6th Edition. Saunders Elsevier 2008.
- Wagner, GS. Marriott’s Practical Electrocardiography (11th edition), Lippincott Williams & Wilkins 2007.