3.3 Vertical distance from the tip of the pacing electrode to the coronary artery
Tables 2.1 and 2.2 show the vertical distances from the end-systolic LBBAP pacing electrode to the branches of the coronary artery. The average distance from the tip of the pacing electrode to the anterior descending branch was shorter than that to the posterior descending branch (19.69 ± 8.72 mm) vs (26. 09 8 ± 02mm). The mean distance from the electrode tip to the left ventricular posterior branch of the right coronary artery (21.11 ± 7.86 mm) was similar to the average distance to the anterior descending branch. This suggests a higher risk of damage to the anterior descending branches and a lower risk of damage to the posterior descending branches. In addition, the minimum distances from the tip of the electrode to the anterior descending branch, posterior descending branch and left ventricular posterior branches were 5.28 mm, 9.51 mm and 8.69 mm, respectively, and the maximum distances were 43.07 mm, 44.11 mm and 42.50 mm, respectively. The ranges of the distance were 37.79 mm, 34.60 mm and 33.81 mm, respectively.
Table 2.1 Vertical distance from the electrode tip in LBBAP to each coronary artery.