Treatment for reflex syncope using cardioneuroablation

Acute electRophysiOlogical Changes of Ventricular Myocardium Following cArdioneuroablatioN for Asystolic Reflex Syncope

NA · Centre of Postgraduate Medical Education · NCT06458140

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.

Quick facts

PhaseNA
Study typeInterventional
Enrollment50 (estimated)
Ages14 Years and up
SexAll
SponsorCentre of Postgraduate Medical Education (other)
Locations1 site (Warsaw)
Trial IDNCT06458140 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of cardioneuroablation (CNA) on patients suffering from severe reflex syncope characterized by asystolic episodes. CNA aims to eliminate the vagal nerve's influence on heart function, potentially improving heart rate and conduction. The study will assess the acute impacts of total vagal denervation on ECG and electrophysiological parameters, as well as the risk of ventricular arrhythmias in 50 patients undergoing the procedure. Measurements will be taken before and after the CNA intervention to evaluate its effectiveness and safety.

Who should consider this trial

Good fit: Ideal candidates are individuals with severe, recurrent reflex syncope and documented asystole lasting more than 3 seconds.

Not a fit: Patients who do not consent to participate or have contraindications for right ventricular stimulation may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the frequency of syncope episodes in affected patients.

How similar studies have performed: While cardioneuroablation is a relatively novel approach, preliminary studies suggest it may hold promise in treating similar conditions.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* severe, recurrent symptoms due to reflex syncope with ECG documented asystole \>3 seconds
* history of ineffective prior non-pharmacological treatment
* positive baseline atropine test (sinus rate acceleration \> 30% and no atrio-ventricular block following 2 mg of intravenous atropine)
* informed written consent to participate in the study

Exclusion Criteria:

* Lack of consent to participate in the study
* Contraindications to perform right ventricular stimulation

Where this trial is running

Warsaw

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Syncope, Vasovagal, cardioneuroablation, reflex syncope, ventricular arrhythmia

Last reviewed 2026-05-15 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.