Heart rhythm showdown: ablation vs. electric shock for AF

NCT ID NCT06096246

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study compares two procedures for treating persistent atrial fibrillation (AF): catheter ablation (which scars tiny areas in the heart to block faulty signals) and DC cardioversion (an electric shock to restore normal rhythm). Researchers want to see which one better prevents AF from coming back. About 208 adults with persistent AF lasting less than 2 years will be randomly assigned to one of the two procedures and monitored with an implanted loop recorder.

What this could mean

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

Active substance

Catheter ablation (pulmonary vein isolation) and DC cardioversion

What this could lead to

If ablation proves superior, it could become the preferred first-line procedure for persistent atrial fibrillation, reducing recurrence and the need for repeat procedures.

What could go wrong

This is a relatively small (208 participants) randomized trial. Ablation is an invasive procedure with risks like bleeding, infection, or heart damage, and results may not apply to all AF patients.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

Arrhythmias, Cardiac atrial fibrillation persistent atrial fibrillation ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Barts Heart Centre

    RECRUITING

    London, EC1A 7BE, United Kingdom

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••