Left Ventricular Hypertrophy (LVH)

Wall of the left ventricle is thicker than normal, the impulse take longer to traverse it. Voltage of QRS complex will increase, producing deeper S and taller R.

Right Ventricular Hypertrophy (RVH)

Normally the electrical forces of the thicker ventricle dominate those of the right ventricle. In RVH the right ventricle dominates and there is right axis deviation. A tall R wave appear in V1 and deep S wave in V6.

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