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Freezing heart tissue during surgery could stop atrial fibrillation

NCT ID NCT06557616

Recruiting now Disease control Sponsor: Medinice S.A. Source: ClinicalTrials.gov ↗

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

Summary

This study tests a device called CoolCryo that freezes small areas of heart tissue to stop atrial fibrillation (an irregular heartbeat). It is being used in 20 people who are already having mitral valve surgery. The goal is to see if the freezing treatment can keep the heart in normal rhythm for at least 6 months without serious side effects.

What this could mean

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

Active substance
CoolCryo system (cryoablation device)
What this could lead to
If it works, this could offer a safe way to eliminate atrial fibrillation during mitral valve surgery, reducing stroke and heart failure risk.
What could go wrong
This is a small, early-stage trial with only 20 people, so results may not apply to everyone. Cryoablation carries risks like heart tissue damage or irregular heartbeat.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Arrhythmias, Cardiac atrial fibrillation mitral valve disorder

As listed by the trial registrant

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

ATRIAL FIBRILLATION, PAROXYSMAL OR PERSISTENT MITRAL VALVE DISEASE

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Antoni Jurasz University Hospital No. 1

    RECRUITING

    Bydgoszcz, 85-094, Poland

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

  • Silesian Centre for Heart Diseases

    RECRUITING

    Zabrze, 41-800, Poland

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

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