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Pacemaker placement showdown: which spot protects the heart best?

NCT ID NCT07360067

Knowledge-focused Sponsor: Samsung Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jul 29, 2026 · Updated 3 times

Summary

This study looks at 200 adults with sick sinus syndrome who need a pacemaker. Researchers will compare two places to put the pacing wire—Bachmann's bundle or the right atrial appendage—to see which one better prevents heart damage. The goal is to learn which site leads to healthier heart structure and function over time.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could guide doctors to choose a better pacing site to reduce heart damage in patients with sick sinus syndrome.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly improve health. Results may not apply to all patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 200 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2025

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients who presented to Samsung Medical Center, were diagnosed with Sick Sinus Syndrome, and underwent de novo permanent pacemaker or implantable cardioverter-defibrillator implantation based on clinical indications.

Ages

19 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients aged 19 years or older * Patients diagnosed with sick sinus syndrome who are scheduled for de novo implantation of a permanent pacemaker or permanent implantable cardioverter-defibrillator * Patients or their legal representatives who voluntarily consent to the access of medical records and study data throughout the entire research period Exclusion Criteria: * Patients with persistent or permanent AF * Patients with a life expectancy of less than one year due to other comorbidities * Pregnant or breastfeeding women * Patients who refuse active treatment

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Conditions

The condition(s) this trial relates to.

sick sinus syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Sick sinus syndrome

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Samsung Medical Center

    RECRUITING

    Seoul, Seoul, 06351, South Korea

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