But instead of ending, delayed right ventricular depolarization occurs, producing at the end of the QRS, a new R wave (R’) in V1 and a wide S wave in V6. The beginning of the QRS complex is equal to normal, (rS in V1 and qR in V6). In right bundle branch block, the beginning of depolarization is similar.
On the EKG it is observed as a small initial r wave in V1, and a small initial q wave in V6.Īfter, the depolarization spreads to both ventricles, with a predominance of the left ventricle, producing a deep S wave in V1 and a tall R wave in V6. The interventricular septum is the first area to be depolarized.
Differences Between Normal Conduction and Right Bundle Branch Block Normal conduction:
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