CompletedNot Applicable

Reducing Atrial Pacing Rate to Reduce Atrial Fibrillation in Patients With Sick Sinus Syndrome.

Denmark540 participantsStarted 2014-05

Plain-language summary

Atrial fibrillation (AF) is prevalent in patients with sick sinus syndrome (SSS) and associated with an increased risk of stroke and death. Within the first two years after pacemaker implantation almost half of the patients are diagnosed with AF. Studies have indicated that an increased amount of stimulation from the pacemaker in the atria is associated with an increased amount of AF. The aim of the present study is to test the hypothesis that a reduction of stimulation from the pacemaker in the atria, and reducing the minimal heart rate, increases the time to AF.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Sick sinus syndrome with and without AV block and indication for first-time implantation of a DDD pacemaker: symptomatic sinus pauses (\>2 sec) or bradycardia with or without paroxysmal AF. * Age ≥18 years. * Patient informed consent. Exclusion Criteria: * Permanent or persisting (\>7 days) AF prior to implantation. * Persisting symptomatic sinus bradycardia and/or chronotropic incompetence where DDD-pacing at a frequency of \>40 bpm is indicated (verified with long term ECG monitoring). * Life expectancy \<2 years. * Participation in another interventional research study. * Indication for implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT). * Pregnancy.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Time to first episode of AF>6 min detected by the pacemaker

Timeframe: Within two years

Trial details

NCT IDNCT02034526

SponsorAarhus University Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2023-03-31

View on ClinicalTrials.gov More Sinus Node Disease trials