4.1 Feasibility of LBBAP in HFmrEF
All studies included in this meta-analysis performed LBBAP using lumenless pacing leads, with an average acute success rate of 91.3%. In one case series wherein LBBAP was performed in patients with HFmrEF using stylet driven leads, the success rate was 100% (n=4)38 Although procedure-related complications of septal perforation, pneumothorax, pocket infection, pocket hematoma, and lead dislodgements occurred during the follow-up period, no major implantation-related complications were observed.