Clinical trial Recruiting at 1 site Interventional Ages 14 and up

New method for treating reflex syncope using cardioneuroablation

Official title: Value of fRagmented Atrial electrOgrams, Computed Tomography and Intracardiac Echocardiography for Identification of optiMal Sites for Radio-frequency Delivery During cArdioneuroablation for Asystolic Reflex syNcope

Run by Centre of Postgraduate Medical Education · NCT06472102 · Data updated 2026-11-12

This study is testing a new heart treatment called cardioneuroablation to see which of three methods works best for finding the right spots in the heart to help people with severe fainting spells.

Quick facts

Study typeInterventional
Ages14 Years and up
SexAll
Enrollment100 (estimated)
SponsorCentre of Postgraduate Medical Education
Academic / other
Locations1 site (Warsaw, Masovian Voivodeship)
StatusRecruiting
StartedMay 20, 2024
Main results expectedDecember 31, 2025
Study endsDecember 31, 2025
Registry record updatedSeptember 26, 2025
Trial IDNCT06472102 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are patients with severe, recurrent reflex syncope and documented asystole lasting over 3 seconds.

Probably not a fit

Patients with contraindications to cardioneuroablation or computed tomography will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effectiveness of cardioneuroablation (CNA) for treating asystolic reflex syncope by comparing three methods for identifying ganglionated plexi (GP) sites in the heart. The methods include intracardiac recordings of fragmented atrial electrograms, intracardiac echocardiography, and computed tomography. A total of 100 patients with severe recurrent syncope will undergo CNA, and the study will analyze the correlation and predictive value of these identification methods for successful treatment outcomes.

Why it matters

Potential benefit: If successful, this approach could significantly improve treatment outcomes for patients suffering from severe reflex syncope.

How similar studies have gone: While cardioneuroablation is a relatively new approach, preliminary studies have shown promise in similar methodologies, but further validation is needed.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* severe, recurrent symptoms due to reflex syncope with ECG documented asystole \>3 seconds, especially if associated with injury, or recurrent presyncope with persistent reflex bradycardia
* history of ineffective prior non-pharmacological treatment and positive baseline atropine test (sinus rate acceleration \> 30% and no AV block following 2 mg of intravenous atropine) -
* informed written consent obtained

Exclusion Criteria:

* contraindications to perform cardioneuroablation
* contraindications to perform computed tomography with intravenous contrast injection
* lack of informed written consent obtained

Where it's running

  • Department of Cardiology, Postgraduate Medical School, Grochowski Hospital
    Warsaw, Masovian Voivodeship, Poland
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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  • Treatment for reflex syncope using cardioneuroablation

    This study is testing if a new procedure called cardioneuroablation can help people with severe reflex syncope by improving their heart function and reducing fainting episodes.

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  • Registry for cardioneuroablation in patients with recurrent vasovagal syncope

    This study is collecting information to see how well a new treatment called cardioneuroablation works for people with frequent fainting spells caused by vasovagal syncope.

    Recruiting at 11 sites University Hospital, Bordeaux · Bron and 13 other locations · NCT06159764

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  • Assessing counterpressure maneuvers for preventing fainting in children

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    Recruiting Simon Fraser University · Vancouver, British Columbia · NCT05555771

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.