…of left anterior fascicular block (LAFB) Isolated LAFB is considered a benign conduction defect. Roughly 7% of cases progress to bifascicular block (which means that…

…infarction [4]. Myocardial Necrosis : The occurrence of LBBB (as a form of bifascicular block) is linked to extensive myocardial necrosis [4]. Clinical Implications and Prognosis…

…as bifascicular block. The anterior fascicle is most likely to be defect because it is most sensitive to myocardial ischemia. Note that isolated fascicular blocks…