Figure 5: In vitro experiment with IS-1 pacing lead in a porcine heart. Attempts at septal penetration by torquing the lead body without re-extending the helix. Note retraction of the helix with only 1 turn of the helix extending beyond the mapping collar of the lead. There is resultant tearing and retention of a small amount of myocardial tissue at the helix. Inadvertent lead dislodgement occurs, with a shallow lead tract demonstrated in the myocardium.
Table 1: Baseline characteristics, ECG and procedural details of all patients who underwent LBBP utilizing our technique