Cardiac re-synchronization therapy
Four patients had undergone LBBP done for LBBB with low LVEF. The QRS duration was reduced from 169.7 ± 13.3ms to 111.5 ± 13.4ms and LVEF improved form 37.5 ± 8.8% to 51.5 ± 4.4% along with improvement in the NYHA functional class.