A left anterior fascicular block, also known as left anterior hemiblock, occurs when the anterior fascicle of the left bundle branch is no longer able to conduct action potentials. The criteria to ...
An atrial septal defect should show a right bundle branch block, or RBBB ― sometimes incomplete ― on ECG. This is partially due to the right ventricular volume and pressure overload that occurs. When ...
Department of Family Medicine, University of Washington, Seattle, Washington, USA Correspondence to Professor Jonathan A Drezner, Department of Family Medicine, University of Washington, P.O. Box ...