However, the AERP of RA tend to be shortened in the P + siR-KCNB2 group, but this difference was not significant (80±2 vs. 85±4 ms, P > 0.05) (Figure 3A), and the AF inducibility was also not changed (2/6 vs. 2/6) compared with the pacing group (Figure 4A). The gene discussed is KCNB2; the disease is atrial fibrillation.