The other six leads are considered “precordial leads” because they are placed on the torso (precordium). The six limb leads are called lead I, II, III, aVL, aVR and aVF. The letter “a” sta ...

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 ...