30-60deg left axis detion-
High QRS voltage is the hallmark of left ventricular hyperophy(LVH), although many young patients have high QRS voltage without real LVH. Other associated hints (albeit nonspecific) are left axis detion, left atrial enlargement, widening of the QRS, and strain (associated ST-T abnormalities Ref Harrison 20th edition pg 1435
Left ventricular hyperophy
Right ventricular hyperophy
Aoic stenosis
Left atrial enlargement
C.V.S