RBBB, a pattern seen on the 12-lead ECG, results when normal electrical activity in the
His-Purkinje system is interrupted for some reason. The normal sequence of activation is altered in
RBBB, with a resultant characteristic appearance on the ECG manifest by a widened QRS complex
and changes in the directional vectors of the R and S waves. This ECG pattern is often seen in
clinical practice and generally regarded as benign. The anatomy, epidemiology, causes, symptoms,
ECG findings and diagnosis, differential diagnosis in ECG, treatment, complications, prognosis,
with respect to RBBB are outlined here, demonstrating some typical ECGs of RBBB.