LBBB: Intermittent LAD

Report:

Sinus rhythm

SVEBs

Left bundle branch block

QRS 0.125”

Intermittent left axis deviation –50o

Comment:

Approximately 50% of LBBBs have LAD; this one had LAD 50% of the time! How or why the predivisional LBBB becomes divisional, and back again, is beyond me; but it happens. It happens even with LBBB and RAD26.

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