Safety and feasibility of left Bundle branch area pacing via nine partition method in a single center
Objective To acess the feasibility,efficacy and safety of the nine-patition pacing method.Methods Retrospectively analysis of 285 patients received pacemaker from June 2020 to December 2021 in TEDA Internation-al Cardiovascular Hospital.Clinical data were collected from baseline data including past medical history,QRS inter-val,and echocardiogram.Record the intra-operative bundle branch potential according to the surgical report;Left ventricular peak time(stimulus to LV activation time);procedure duration,electrode parameters.Relevant postop-erative complications were recorded through the outpatient electronic medical record system,and the ventricular threshold,R-wave amplitude,and impedance were recorded during the follow-up.According to whether the intra-operative LV peak reaching time was 80 ms,it was divided into left bundle branch pacing(LBBP)group and LV septal pacing(LVSP)group.The pacing threshold,perception and impedance of the two ventricular leads were com-pared.Results 263 patients successfully performed left bundle branch area pacing(LBBaP)with a success rate of 92.2％,including 148 males(56.2％),with a mean age of(63.4±9.1)years,operation duration of(53.2±16.5)min,and(115.4±18.1)ms of postoperative pacing QRS interval.53(20.2％)patients had Sti-LVAT ≥80 ms for LV septal pacing;210(79.8％)patients had Sti-LVAT＜80 ms for LBBaP.The pacing threshold and perception of ventricular lead at 12 months were significantly higher than that of intraoperative implantation,and the threshold was＜1.5 V,and the lead impedance was significantly lower than that of intraoperative implantation,and became stable,and there was no statistical difference compared with the relevant parameters at 24 months after surgery.Compared with the LBBP group,the LVSP group with Sti-LVAT[(67.9±7.1)ms,(84.0±3.1)ms],intrinsic QRS interval[(94.3±16.7)ms,(110.4±19.7)ms],and pacing QRS interval[(112.1±12.4)ms,(123.2±12.2)ms]were longer,and the difference was statistically signifi-cant.A total of 10 patients experienced procedure-re-lated complications,with a complication rate of 3.8％.Conclusion Nine partition pacing method,which reduced the difficulty,simplified the procedure,has high success rate,feasibility,low incidence of operation-related complications,and stable lead parameters during follow-up.[Chinese Journal of Cardiac Pacing and Electrophysi-ology,2024,38(3):175-179]
CardiologyPacemakerLeft bundle branch area pacingConduction system pacingPacing electrode lead implantation
NETL
NSTL
万方数据
