Table 2 Electrical features at implant and during follow-up.

Pacing threshold, V/0.24 ms

0.59 ± 0.32

0.90 ± 0.45

< 0.001

0.51 ± 0.16

1.82 ± 0.64

< 0.001

Pacing impedance, Ω

858.7 ± 270.4

714.4 ± 199.2

0.026

613.87 ± 141.54

480.53 ± 67.37

< 0.001

R wave amplitude, mV

11.5 ± 38.3

9.8 ± 4.2

0.810

11.94 ± 4.08

9.85 ± 3.85

0.035

Multiple deployments (≥ 2) required, %

16 (4.1%)

0 (0.0%)

0.368

Follow-up duration (days)

354.55 ± 310.87

287.42 ± 215.82

0.680