The Brugada criteria/algorithm is as follows: 1. Is there concordance present in the precordial leads (leads V1-V6)? Also explained as the absence of an RS complex, concordance is diagnostic of ...
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.