Left bundle branch block (LBBB) is a pathologic finding on electrocardiogram (ECG). Most commonly present in patients with antecedent hypertension, cardiac enlargement, coronary artery disease or a combination of these Class 1B recommendation: Those with findings of LBBB on ECG should undergo transthoracic echocardiography for evaluation of underlying heart disease LBBB is prevalent (33%) in patients with heart failure Cardiac resynchronization therapy can improve left ventricular mechanical function in patients with LBBB (QRS \u3e150 msec)
This study aims to understand how effectively we are evaluating and following up these patients at Thomas Jefferson University Hospital
