ECG - Left Ventricular Hypertrophy

There are many ECG criterion s which are used to diagnose LVH. The most commonly used criteria for diagnosing LVH is Sokolow-Lyon criterium. 

• (Height of R wave in V5 or V6 + Depth of  S wave in V1)  >35 mm (≥ 7 large squares)  signifies LVH 

 ECG Image Depicting LVH

LV Strain Pattern

• Tall R waves in leads V5 and V6 with ST segment depression T wave inversion 
• Deep S waves with ST segment elevation in V1 (rare) also signifies Left Ventricular Hypertrophy. LVH  strain pattern is often seen in patients with systemic overload of left ventricle. This overload is seen in patients having aortic stenosis, systemic hypertension and hypertrophic cardiomyopathy.