Sick Sinus Syndrome
Conditions
Interventions
Bachmann's Bundle Pacing (BBP) Group:Bachmann's Bundle Pacing
Conventional Right Atrial Appendage Pacing (RAAP) Group:Conventional Right Atrial Appendage Pacing
Sponsors
The First Affiliated Hospital of Dalian Medical University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1.Age = 18 years. 2.Diagnosed with sick sinus syndrome (SSS) or intra-atrial conduction block, meeting guideline-recommended indications for pacemaker implantation (e.g., symptomatic bradycardia, sinus arrest, chronotropic incompetence, etc.). 3.Expected atrial pacing percentage (AP%) = 40%, based on preprocedural electrophysiological assessment. 4.Willing and able to provide written informed consent to participate in the study. 5.Complete baseline 12-lead electrocardiogram (ECG) data available during sinus rhythm.
Exclusion criteria
Exclusion criteria: 1.History of persistent or permanent atrial fibrillation (AF) prior to implantation. 2.Significant left atrial enlargement (left atrial diameter [LAD] > 60 mm). 3.Prior cardiac surgery affecting the conduction system, or severe heart failure (New York Heart Association [NYHA] functional class III or IV). 4.Congenital heart disease (including valvular heart disease requiring surgery) with complex anatomical variations. 5.Life expectancy < 1 year (e.g., advanced malignancy). 6.Severe systemic infection. 7.Pregnancy. 8.Presence of atrial thrombus.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence of Postoperative Atrial Arrhythmias; | — |
Secondary
| Measure | Time frame |
|---|---|
| Differences in P-wave Indices Between Preoperative and Postoperative Assessments Within 1 Year, Comparing the Two Groups; | — |
Countries
China
Contacts
Public ContactYingxue Dong
The First Affiliated Hospital of Dalian Medical University
Outcome results
None listed