Home    中文  
 
  • Search
  • lucene Search
  • Citation
  • Fig/Tab
  • Adv Search
Just Accepted  |  Current Issue  |  Archive  |  Featured Articles  |  Most Read  |  Most Download  |  Most Cited

Chinese Journal of Heart and Heart Rhythm(Electronic Edition) ›› 2024, Vol. 12 ›› Issue (03): 149-154. doi: 10.3877/cma.j.issn.2095-6568.2024.03.003

• His-Purkinje System Pacing • Previous Articles     Next Articles

Analysis of predictors of increased His bundle pacing threshold: a 5-year follow-up from a single center

Zhuangchuan She1, Ying Chen1, Wanxuan Ding1, Yiheng, Yang1, Nan Wang1, Wei Sun1, Guocao Li1, Peipei Ma1, Rongfeng Zhang1, Xianjie Xiao1, Yingxue Dong1,()   

  1. 1.The Second Department of Arrhythmia Department, The First Affiliated Hospital of Dalian Medical University, Dalian 116021, China
  • Received:2023-11-06 Online:2024-09-25 Published:2024-11-04
  • Contact: Yingxue Dong

Abstract:

Objective

To identify the changes in the threshold during the follow-up period of His bundle pacing (HBP) and to explore the predictors of threshold elevation.

Methods

Patients with atrioventricular block and ventricular pacing indications or patients with cardiac function deterioration with high ventricular pacing compared to HBP escalation in the Second Department of Arrhythmia in the First Affiliated Hospital of Dalian Medical University from July 2017 to October 2018 were continuously enrolled. The data of patient demographics, comorbidities,indications for pacemaker implantation, echocardiography parameters and electrocardiogram parameters were collected, and follow-up was conducted once at the first, third, sixth, and tweilveth months after the implantation, and every 6 months after 1 year. The pacing threshold, R-wave perception and wire impedance, etc. were recorded during the follow-up. Logistic regression analysis was performed on age, gender, comorbidities, intraoperative injury current, baseline threshold, injury current, right ventricular perception, left ventricular ejection fraction, etc. to evaluate the predictors of HBP threshold elevation. Postoperative threshold elevation was defined as an increase in the pacing threshold of >1.0 V from the baseline threshold at postoperative follow-up and reaching more than 2.5 V/0.4 ms.

Results

After 60 (57, 63) months of follow-up, 37 (82.22%,37/45) patients with HBP remained stable and 8 (17.78%, 8/45) patients increased the threshold for His bundle capture. Logistic regression analysis showed that the pacing threshold of patients with intraoperative injury current tended to be stable [odds ratio (OR)=0.121, 95% confidence imterval (CI) 0.014-1.088, P = 0.059], and ventricular perception was statistically significant for the stability of the long-term threshold of HBP (OR=0.635, 95%CI 0.436-0.923, P = 0.017).

Conclusion

Some patients with HBP may have an elevated pacing threshold in the long term, and the pacing threshold is more likely to be stable in patients with high intraoperative injury current and R-wave amplitude.

Key words: His bundle pacing, Threshold value, Predictive factors, Injury current;Perceive

Copyright © Chinese Journal of Heart and Heart Rhythm(Electronic Edition), All Rights Reserved.
Tel: 010-60866253 E-mail: cj_heart2022@163.com
Powered by Beijing Magtech Co. Ltd