Generality
Left bundle bundle block is a cardiac condition, which arises from the presence of a lesion or a disorder capable of blocking the electrical signal along both or only one of the two fascicles of the left bundle of the His bundle.
Left bundle branch block, therefore, is an "anomaly in the heart's so-called electrical conduction system.
Rarely, those with left bundle branch block exhibit particular symptoms and signs.
In such situations, the therapy depends on the triggering causes; triggering causes that can be: hypertension, aortic stenosis, myocardial infarction, etc.