NCT07467031

Bachstim Registry: a Feasability Study of Bachmann's Area Pacing

BACHSTIM REGISTRY: a Feasability Prospective Study of Bachmann's Area Pacing

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 200 (estimated)
• Sponsor: University Hospital, Caen · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

During pacemaker implantation, the atrial lead is commonly positioned in the right atrium. However, this pacing location can be problematic because it may disrupt physiological atrial activation, leading to atrial dyssynchrony. Such dyssynchrony has been associated with an increased risk of atrial fibrillation and its related complications. To mitigate atrial dyssynchrony, pacing of the Bachmann's bundle region has emerged as an alternative strategy. Bachmann's bundle is the principal interatrial conduction pathway, and pacing at this site may help preserve physiological atrial activation. Several studies have suggested that pacing in this region can significantly reduce the incidence of new-onset atrial fibrillation and heart failure in selected populations. To date, however, robust data from large cohorts regarding the feasibility of Bachmann's bundle area pacing and the factors associated with successful implantation remain limited. To address this gap, we established the Bachstim cohort study, aimed at determining the success rate of Bachmann's bundle area pacing and identifying the clinical and procedural factors associated with its feasibility.

Conditions

• Cardiac Conduction Disturbance

Interventions

Type	Name	Description
DEVICE	Bachmann's area pacing	In this study, the atrial lead will be targeted to the Bachmann's bundle area, rather than the conventional right atrial appendage pacing site.

Timeline

• Start date: 2026-04-01
• Primary completion: 2027-04-01
• Completion: 2028-04-01
• First posted: 2026-03-12
• Last updated: 2026-03-12

Locations

1 site across 1 country: France

Regulatory

• FDA-regulated device study