Clinical trial Recruiting at 2 sites Interventional Ages 18 to 80

Comparing two methods for treating persistent atrial fibrillation

Official title: Thoracoscopic Surgical Versus Catheter Ablation Approaches for Primary Treatment of Persistent Atrial Fibrillation

Run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · NCT04715425 · Data updated 2026-11-12

This study is testing whether a surgical procedure or a catheter procedure works better for helping people with persistent atrial fibrillation who haven't found relief from medications.

Quick facts

Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment170 (estimated)
SponsorAcademisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Academic / other
Drugs / interventionsradiation
Locations3 sites (Amsterdam and 2 other locations)
StatusRecruiting
StartedSeptember 25, 2019
Main results expectedSeptember 2024
Study endsSeptember 2028
Registry record updatedJanuary 25, 2024
Trial IDNCT04715425 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 to 80 with persistent atrial fibrillation who have failed at least one anti-arrhythmic drug.

Probably not a fit

Patients with prior interventions for atrial fibrillation or those with conditions causing secondary atrial fibrillation 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 study compares the effectiveness of thoracoscopic surgical ablation versus catheter ablation as primary treatments for patients with persistent atrial fibrillation who have not responded to anti-arrhythmic medications. The research aims to determine which approach provides better outcomes for symptom relief and arrhythmia management. Participants will be monitored for their response to these interventions, focusing on the efficacy and safety of each method. The study is significant as it addresses a gap in existing research regarding these two treatment options.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment options for patients suffering from persistent atrial fibrillation.

How similar studies have gone: While catheter ablation is a common treatment, this study is novel as it directly compares it with thoracoscopic ablation in this specific patient population.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age is between 18 and 80 years
* Persistent AF as defined following the ESC 2016 Guidelines, evidenced by 1) ongoing AF on the ECG or 2) documentation of AF necessitating cardioversion.
* AF documented by ECG or Holter \< 1 year ago.
* At least one class I or III anti-arrhythmic drug in standard dosage has failed or is not tolerated.
* Left atrial volume index ≤ 45 ml/m2
* Legally competent and willing to sign the informed consent.
* Willing and able to adhere to the follow-up visit protocol.
* Life expectancy of at least 2 years.

Exclusion Criteria:

* Prior intervention (catheter ablation or minimally-invasive thoracoscopic ablation) for AF.
* AF is secondary to electrolyte imbalance, thyroid disease or other reversible or non-cardiovascular causes.
* Documentation of CTI dependent atrial flutter
* Valvular AF
* Paroxysmal AF
* Long standing Persistent AF, defined as AF continuously present for longer than 1 year.
* Body mass index \>35kg/m2
* NYHA class IV heart failure symptoms or left ventricular ejection fraction \<35%.
* NYHA class III heart failure symptoms, unless caused or aggravated by AF.
* Myocardial infarction within the preceding 2 months.
* Active infection or sepsis (as evidenced by increased white blood cell count, elevated CRP level or fever \>38,5 °C).
* Known and documented carotid stenosis \> 80%
* Planned cardiac surgery for other purposes than AF.
* Pregnancy or child bearing potential without adequate anticonception.
* Requirement of anti-arrhythmic drugs for ventricular arrhythmias.
* Presence of intracardiac mass or thrombus (discovery of any thrombus or intracardiac mass after signing of the informed consent will result in withdrawal of the subject from the study)
* Co-morbid condition that possesses undue risk of general anesthesia or port access cardiac surgery (in the opinion of the operator).
* History of previous radiation therapy on the thorax
* Circumstances that prevent follow-up
* No vascular access for catheterization.
* History of previous thoracotomy.
* Factors precluding transseptal puncture for catheterization.

Where it's running

  • Amsterdam University Medical Center location AMC
    Amsterdam, Netherlands
    Recruiting
  • St. Antonius Ziekenhuis Nieuwegein
    Nieuwegein, Netherlands
    Recruiting
  • Maastricht UMC+
    Maastricht, Netherlands
    Not yet 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.