Group A | Group B | p1 | p2 | |
RAO 45° view | ||||
DHB-CSOF | 18.8 (4.2) | 20.1 (5.3) | 0.51 | – |
DHB-AVNAE | 11.3 (6.8) | 6.8 (3.7) | 0.003 | 0.11 |
DHB-RF | 11.7 (6.8) | 14.1 (4.3) | 0.14 | – |
DAVNAE-RF | 0.61 (0.60) | 7.2 (4.0) | 0.00005 | 0.001 |
LAO 45° view | ||||
DHB-CSOF | 20.6 (5.9) | 23.6 (4.6) | 0.08 | – |
DHB-AVNAE | 11.0 (4.7) | 7.7 (3.9) | 0.02 | 0.43 |
DHB-RF | 12.8 (5.2) | 14.4 (3.5) | 0.23 | – |
DAVNAE-RF | 0.56 (0.58) | 6.9 (4.0) | 0.00007 | 0.001 |
AVNAE, distal end of AV nodal artery; CSO, coronary sinus orifice; CSOF, CSO floor; D, distance or dimension (in mm); DHB-CSOF, DHB-AVNAE, DHB-RF, distance between His bundle recording site (HB) and CSOF, AVNAE, and RF catheter ablation site (RF); DAVNAE-RF, distance between AVNAE and RF; p1, p value between group A and group B, by Student's t test; p2, p value by multivariate regression analysis; p < 0.05 is significant. The number in the parenthesis represents the standard deviation of the mean value.