Learning Curve Analyses for Left Bundle Branch Area Pacing with Conventional Stylet-Driven Pacing Leads
Table 1
Baseline characteristics of patients.
RVP (N = 200)
LBBAP (N = 65)
value
Demographics
Age (years)
70.4 ± 12.0
68.7 ± 14.9
0.886
Female sex
99 (49.5%)
33 (50.8%)
0.972
Body mass index
23.9 ± 3.4
24.1 ± 3.6
0.752
Pacing indications
Sick sinus syndrome
108 (54.0%)
12 (18.5%)
<0.001
AV block
92 (46.0%)
53 (81.5%)
<0.001
Second degree AV block
5 (2.5%)
5 (7.6%)
High degree AV block
19 (9.5%)
12 (18.5%)
Complete AV block
33 (16.5%)
34 (52.3%)
Others
35 (17.5%)
2 (3.1%)
Baseline QRS morphology
<0.001
Narrow QRS
124 (62.0%)
26 (40.0%)
RBBB
33 (16.5%)
9 (13.8%)
LBBB
31 (15.5%)
9 (13.8%)
Bifascicular block
0 (0.0%)
9 (13.8%)
Trifascicular block
0 (0.0%)
5 (7.7%)
Paced rhythm
12 (6.0%)
7 (10.8%)
Values are presented as mean ± standard deviation or n (%). Consist of chronotropic incompetence, atrial standstill with junctional bradycardia and heart failure for cardiac resynchronization therapy device. RVP, right ventricular pacing; LBBAP, left bundle branch area pacing; AV block, atrioventricular block; RBBB, right bundle branch block; LBBB, left bundle branch block.
