RBBB vs LBBB vs IVCD

This ECG shows:
a) RBBB
b) LBBB
c) IVCD



This ECG present typical changes for RBBB.

The RBBB criteria fulfilled in this case are:
-          Supraventricular rhythm.
-          Wide QRS complex (>120 ms) with rsR’ morphology.
-          Slurred S wave in V6.
-          T wave discordance in precordial leads.

 The most common cause of RBBB are: ASD, COPD, right ventricular hypertrophy, pulmonary thromboemboli, ischaemic heart disease, hypertension, cardiomyopathy.


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