• LBBB
  • Experiments in dogs with left bundle branch block (LBBB) showed a strong relation between electrical (QRS-vector amplitude, QRSVampl) and mechanical interventricular dyssynchrony. (ahajournals.org)
  • To induce different degrees of left (LV) and right ventricular (RV) pre-excitation, single site LV pacing at many AV-delays was performed in 20 LBBB patients in sinus rhythm, and biventricular pacing at many VV-delays in 18 patients with complete AV-block. (ahajournals.org)