Comparative analysis of HBP and LBBAP (Table 3)
Non-selective HBP was obtained in 28 (75.7%) of the 37 patients in the
HBP group and selective HBP in 9 (24.3%). The utilization of a
deflectable sheath was more frequent in the HBP group. The fluoroscopy
time (excluding cases of reintervention) was longer in the HBP group,
regardless of the number of leads implanted. There was no significant
difference in success rate between HBP and LBBAP groups among patients
with narrow baseline QRS (HBP 82.4% vs. LBBAP 100%; P = .23) or
among those with a wide QRS (HBP 79.3% vs. LBBAP 86.2%;P = .73). The paced QRS duration was shorter in the LBBAP group
(109 ± 8 vs. 117 ± 19 ms; P < .05).
At implantation, the pacing threshold was lower and the sensed R-wave
amplitude was greater in the LBBAP group, and these differences with the
LBBAP group persisted at three months. Threshold and amplitude were
increased in both groups at three months versus baseline, and the
difference reached statistical significance in the LBBAP group (Figure
3).