Right Bundle Branch Block: Current Considerations

Takanori Ikeda

doi:10.2174/1573403X16666200708111553

Right Bundle Branch Block: Current Considerations

Curr Cardiol Rev. 2021;17(1):24-30. doi: 10.2174/1573403X16666200708111553.

Author

Takanori Ikeda¹

Affiliation

¹ Department of Cardiovascular Medicine, Toho University Faculty of Medicine / Toho University Omori Medical Center, 6-11-1 Omorinishi, Ota-ku, Tokyo 143-8541, Japan.

Abstract

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.

Keywords: 12-lead; ECG; His-Purkinje system; Right bundle branch block; conduction disturbance; widened QRS complex.

Publication types

Review

MeSH terms

Bundle-Branch Block* / diagnosis
Bundle-Branch Block* / mortality
Bundle-Branch Block* / physiopathology
Bundle-Branch Block* / therapy
Electrocardiography / methods*
Female
Humans
Male