Poor R wave progression refers to the absence of the normal increase in size of the R wave in the precordial leads when advancing from lead V1 to V6. In lead V1, the R wave should be small.

multiple criteria have been developed to diagnose LVH on an ECG; they are listed below. Cornell criteria: Add the R wave in aVL and the S wave in V3. If the sum is greater than 28 millimeters in ...