New study tests better way to stop irregular heartbeat

NCT ID NCT05296824

First seen Nov 05, 2025 · Last updated May 14, 2026 · Updated 27 times

Summary

This study looked at 320 people with paroxysmal atrial fibrillation (a type of irregular heartbeat that comes and goes). Researchers compared two cryoballoon ablation techniques: one that isolates only the pulmonary veins and another that also targets the back wall of the heart's left atrium. The goal was to see which method better prevents the heartbeat problem from returning over more than three years.

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Contacts and locations

Locations

  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215, United States

  • Mercy General Hospital and Dignity Health Heart and Vascular Institute

    Sacramento, California, 95819, United States

  • UC Health Medical Center

    Loveland, Colorado, 80538, United States

  • University of Texas Health Science Center at Houston

    Houston, Texas, 77030, United States

Conditions

Explore the condition pages connected to this study.