Because the anatomical opposite of the precordial leads would be posterior leads, which we do not commonly check in this setting, there are no “reciprocal changes” during anterior or septal MIs.

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 ...

Objective: Precordial ECGs reveal significant intrasubject variability due to the inexact employment of the recommended V 1-V 6 chest landmarks. Also, as per the Einthoven law, the six limb leads ...