Fig. 2
From: Left bundle branch area pacing with stylet-driven pacing leads: implantation technique
Lead preparation for LBBAP with SDL. The helix is extended by turning the outer pin 10–12 times clockwise (A). The partial unwinding of the extendable helix was avoided by the additional turning of the outer pin of the helix 5 times clockwise (B). The lead is placed in the sheath using a transvalvular insertion tool (C). LBBAP Left bundle branch area pacing, SDL stylet-driven pacing lead, CW clockwise