Image Location and Performance of Left Bundle Branch Pacing
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 50
- 试验地点
- 3
- 主要终点
- QRS duration
研究概览
简要总结
This is a prospective, multi-site, non-randomized, data collection study. The purpose of this study is to investigate the correlation between pacing sites and ECG morphology or pacing parameters during left bundle branch pacing (LBBP) and perform the use condition analysis to assess the long-term performance of pacing lead during LBBP.
详细描述
His bundle pacing (HBP) is a physiological pacing, but also has some limitations, including high and unstable pacing threshold in 5-10% patients, low R-wave amplitude causing inappropriate pacing management, damage to the His bundle during implantation. On the other hand, left bundle branch pacing (LBBP), achieved via trans-ventricular septal approach with the pacing lead tip at the left side of the ventricular septum, has recently initiated and been widely practiced in China because of easy implantation, relatively narrow paced QRS duration, low and stable pacing threshold, high R wave amplitude, and the LBBB correction by a low pacing output.
As LBBP is in the early phase of clinical practice in China, in order to better conduct LBBP implantation and understand mechanisms of LBBP therapy, physicians often do imaging assessment of the pacing lead in patients implanted with LBBP based on clinical necessity.
Additionally, there is no report of mid/long-term correlation between lead location and ventricular electrical activity, nor mid/long-term pacing lead performance assessment during LBBP.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Aged from 18 to 80 years old;
- •Patients providing signed Informed Consent;
- •Patients indicated for permanent pacing and implanted with LBBP for at least 3 months, with documentation of implantation records;
- •Patients who plan to receive cardiac CT examination.
排除标准
- •Patients who have a history of allergy to contrast agent or refuse to use contrast agent in CT examination;
- •Patients who are pregnant or have a plan for pregnancy during the study;
- •Patients who are not willing to provide Informed Consent;
- •Patients who have medical conditions that would limit study participation;
- •Patients who were already enrolled in other clinical trial which would impact his/her participation.
结局指标
主要结局
QRS duration
时间窗: at least 3 months after implant
The primary endpoint is QRS duration and morphology during LBBP
次要结局
未报告次要终点