Overall group (n = 50) |
HBP |
LBBAP |
P |
Bundle branch block, n |
26 |
24 |
.98 |
RBBB, n (%) |
14 (53.8) |
13 (54.2) |
|
LBBB, n (%) |
12 (46.2) |
11 (45.8) |
|
Overall success, n (%) |
20 (76.9%) |
22 (91.7) |
.25 |
RBBB success, n (%) |
12 (87.5) |
11 (84.6) |
1 |
LBBB success, n (%) |
8 (66.7) |
11 (100) |
.09 |
Overall success (n = 42) |
HBP (n = 20) |
LBBAP
(n = 22) |
P |
Baseline QRS, ms |
172 ± 36 |
164 ± 19 |
.42 |
Paced QRS, ms |
124 ± 20 |
109 ± 8 |
<.01 |
QCI, % |
–26 ± 14 |
–33 ± 8 |
.07 |
QRS ≥ 120 ms after implantation, n (%) |
12 (60) |
4 (18.2) |
.01 |
LBBB success (n = 20) |
HBP (n = 8) |
LBBAP (n = 11) |
P |
Baseline QRS, ms |
190 ± 39 |
172 ± 19 |
.27 |
Paced QRS, ms |
127 ± 26 |
112 ± 9 |
.16 |
QCI, % |
–32 ± 13 |
–34.8 ± 4.8 |
.59 |
QRS ≥ 120 ms after implantation, n (%) |
6 (75) |
3 (27.3) |
.07 |
RBBB success (n = 32) |
HBP (n = 12) |
LBBAP (n = 11) |
P |
Baseline QRS, ms |
159 ± 30 |
156 ± 16 |
.73 |
Paced QRS, ms |
122 ± 16 |
107 ± 7 |
<.01 |
QCI, % |
–21 ± 14 |
–31 ± 10 |
.09 |
QRS ≥ 120 ms after implantation, n (%) |
6 (50) |
1 (9.1) |
.07 |