Clinical trial Recruiting at 1 site Observational Ages 18 and up

Evaluating heart function during exercise after ablation for atrial fibrillation

Official title: EXCLAMATORY: EXercise Cardiac Magnetic Resonance Assessment of Left Atrial Mechanics Following Ablation TO Reduce Atrial Fibrillation Burden and Correlation With Exercise CapacitY Longitudinal Study

Run by Virginia Commonwealth University · NCT06212791 · Data updated 2026-11-12

This study is testing how well the heart works during exercise in people who have had a procedure to treat their irregular heartbeat, to see if their ability to exercise improves over time.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment50 (estimated)
SponsorVirginia Commonwealth University
Academic / other
Locations1 site (Richmond, Virginia)
StatusRecruiting
StartedDecember 26, 2024
Main results expectedMarch 2028
Study endsMarch 2028
Registry record updatedMarch 12, 2026
Trial IDNCT06212791 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older diagnosed with paroxysmal atrial fibrillation who are scheduled for catheter ablation.

Probably not a fit

Patients with persistent or permanent atrial fibrillation, significant heart conditions, or those unable to complete required assessments may 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 observational cohort study aims to assess changes in left atrial reservoir function and overall exercise capacity in patients who have undergone catheter ablation for paroxysmal atrial fibrillation. Participants will undergo various evaluations, including self-reported questionnaires and cardiopulmonary exercise tests, to measure their heart performance during physical activity. The study will track these changes over time to better understand the impact of the ablation procedure on exercise capacity and heart function.

Why it matters

Potential benefit: If successful, this study could provide insights into improving post-ablation care and exercise recommendations for patients with atrial fibrillation.

How similar studies have gone: While similar studies have explored heart function post-ablation, this specific focus on left atrial mechanics during exercise is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age ≥18 years
* Diagnosis of paroxysmal AF
* Left ventricular ejection fraction ≥50%
* Scheduled for catheter ablation
* Able to speak, hear, and read English
* Willing and able to provide informed consent

Exclusion Criteria:

* Persistent or permanent AF
* Prior ablation (catheter based or surgical) for AF
* Significant sinus node dysfunction
* Implanted pacemaker or defibrillator
* Contraindication to or inability to complete cardiovascular magnetic resonance study
* Contraindication to or inability to complete exercise testing
* Chronic kidney disease with estimated glomerular filtration rate \<30 mL/min/1.73m2
* Severe left ventricular hypertrophy
* Unrelated cardiomyopathy that is expected to limit exercise capacity, including but not limited to:

  * Hypertrophic cardiomyopathy
  * Cardiac amyloidosis
  * Constrictive pericarditis
* Pulmonary arterial hypertension
* Prior cardiac surgery
* Active pregnancy

Where it's running

  • Virginia Commonwealth University
    Richmond, Virginia, United States
    Recruiting

Study contacts

Similar studies

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

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.