Left ventricular electromechanical delay in patients with heart failure and normal QRS duration and in patients with right and left bundle branch block.Luigi P Badano, Oscar Gaddi, +10 authors Michele BrignoleEuropace : European pacing, arrhythmias, and…2007AIMS We sought to define the reference values of intra-left ventricular (LV) electromechanical delay (EMD), and to assess the prevalence (and pattern) of intra-LV dyssynchrony in patients with heart… (More)