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Intraventricular Conduction: Difference between revisions
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→Retrograde Concealed Conduction
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===Retrograde Concealed Conduction=== | ===Retrograde Concealed Conduction=== | ||
[[File:retrograde_concealed_conduction.svg|thumb|LBBB due to retrograde concealed conduction]] | |||
This is the most common mechanism for sustained aberrancy during tachycardia. The sequence of QRS widening that is often observed is phase 3 aberration in the first premature beat. This can leave the left bundle (for example) refractory for the next complex. This next beat is conducted by the right bundle and once it reaches the apex, it is conducted retrograde by the left bundle. This can continue until a new premature ventricular complex causes a compensatory pause and 'resets' the system. | This is the most common mechanism for sustained aberrancy during tachycardia. The sequence of QRS widening that is often observed is phase 3 aberration in the first premature beat. This can leave the left bundle (for example) refractory for the next complex. This next beat is conducted by the right bundle and once it reaches the apex, it is conducted retrograde by the left bundle. This can continue until a new premature ventricular complex causes a compensatory pause and 'resets' the system. | ||
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