Table 2. Comparison of main electrical parameters between left bundle branch block and right ventricular apex pacing.

Parameters	Left bundle branch block (n = 24)	Right ventricular apex pacing (n = 24)	P-value
Data are presented as means ± SD. Based on the data from Eschalier, et al.[15]
Left ventricular total activation time, ms	103 ± 22	116 ± 27	0.06
Right ventricular total activation time, ms	46 ± 21	69 ± 17	< 0.001
Total activation time, ms	129 ± 19	130 ± 23	1
Ventricular electrical uncoupling, ms	73 ± 12	38 ± 21	< 0.001