Definition: bundle branch block in a patient with normal myocardium and normal coronary arteries resulting from fibrosis or calcification including the conducting system; affects the membranous septum, the apex of the muscular septum, and often the mitral and aortic valve rings.
Synonym(s): Lev disease
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.