COMMON AND TRAINING-RELATED ECG CHANGES - Incomplete right bundle branch block (RBBB)

5 important questions on COMMON AND TRAINING-RELATED ECG CHANGES - Incomplete right bundle branch block (RBBB)

What happens in an incomplete right bundle branch block?

The right ventricle is not directly activated by impulses coming from the right bundle branch. Instead, the right ventricle is stimulated via the myocardium of the left ventricle.

How does an ECG show a RBBB?

normal P - QRS relationship
Widened QRS complex

What kind of athlete do often show RBBB?

male endurance athletes.
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What may be the functional cause of RBBB?

The increased size of the right ventricle

How to distinguish RBBB from Brugada ECG?

Brugada Syndrome shows a slow positive deflection at the R-ST interval and an elevated ST segment.
RBBB shows a delayed R wave and no elevation of the ST segment

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