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12‐lead ECG and lead recorded electrogram during implantation. A, LBB potential. B, LBB potential injury. C, Pacing in 5 V/0.5 ms (unipolar), Stim‐LVAT = 78 ms; D, Pacing in 3 V/0.5 ms (unipolar), Stim‐LVAT = 78 ms; E, Pacing in 1 V/0.5 ms (unipolar), Stim‐LVAT = 78 ms. Indicate LBB capture with the shortest and constant Stim‐LVAT of 78 ms. Po LBB = LBB potential
