Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2026-03-26 @ 3:18 PM
Ignite Modification Date:
2026-03-26 @ 3:18 PM
NCT ID:
NCT07360067
Brief Summary:
The goal of this observational study is to evaluate the impact of different atrial pacing sites-Bachmann's bundle pacing versus right atrial appendage pacing-on the development and progression of atrial cardiomyopathy in patients diagnosed with sick sinus syndrome who are undergoing permanent pacemaker implantation.
Detailed Description:
Previous studies have reported that conventional Right Atrial Appendage pacing is associated with delayed atrial activation time. A higher burden of atrial pacing at this site has been linked to an increased incidence of atrial fibrillation and atrial tachycardia. Furthermore, structural and functional deterioration of the atria-specifically Left Atrial dilation and reduced left atrial strain-has been observed in patients with a high percentage of Right Atrial Appendage pacing. These changes are known to accelerate the progression of atrial cardiomyopathy, potentially leading to adverse long-term clinical outcomes.
To address these limitations, Bachmann Bundle Pacing has emerged as a promising alternative pacing site. The Bachmann bundle is a major atrial myoarchitecture connecting the right and left atria. Pacing at this site is expected to facilitate interatrial conduction, thereby restoring interatrial synchrony and mitigating interatrial block. Prior research indicates that pacing at the Bachmann bundle is associated with a reduced incidence of atrial fibrillation and atrial tachycardia, suggesting distinct benefits regarding atrial electrophysiological outcomes. However, existing studies have primarily focused on electrophysiological parameters, such as arrhythmia incidence. Consequently, the impact of Bachmann Bundle Pacing on atrial structural and functional remodeling remains to be clearly elucidated.
Therefore, this study is designed as a single-center cohort study enrolling a total of 200 subjects (100 prospective and 100 retrospective). We will analyze echocardiographic parameters over a 12-month period following pacemaker implantation. By comprehensively analyzing imaging parameters (left atrial/right atrial strain and volume changes assessed via echocardiography) and clinical outcomes (atrial arrhythmias, heart failure hospitalization, and mortality), this study aims to investigate the differential effects of Bachmann Bundle Pacing versus Right Atrial Appendage pacing on the development and progression of atrial cardiomyopathy.
Study:
NCT07360067
Study Brief:
Protocol Section:
NCT07360067