Results:
LBBP was successful in 10 out of 11 patients. Mean age 82.1 ± 2.5 yrs. Male 7 patients. Follow up duration 4.7 months (range1-7months). Indication for pacing included atrioventricular (AV) block 5 patients, Left bundle branch block (LBBB) with low ejection fraction (EF) 4 patients, sinus node dysfunction in 1. LB lead placement fluoroscopic time was 17.9 minutes. QRS duration reduced from 145.9 ±27.7ms at baseline to 107.1 ±9.5ms after LBBP (p value0.00001) LV ejection fraction increased from 47.6 % to 55.9 % after LBBP (pvalue0.017). Pacing threshold was 0.58 ± 0.22V and sensed R wave 17.35 ± 6.5mV and it remained stable during follow up. LBBB with low EF patients also showed similar reduction in QRS duration along with improvement in LVEF. No major complications noted