New heart procedure could be safer and just as effective for AFib
NCT ID NCT05534581
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two ways to treat a heart condition called atrial fibrillation (AFib) that causes an irregular heartbeat. The standard method uses freezing (cryoballoon), while the newer method uses electrical pulses (pulsed field ablation). The goal is to see if the new method is just as good at preventing AFib from coming back, and if it has fewer side effects. About 210 adults with AFib will take part, and their heart rhythms will be monitored for a year.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Inselspital, Bern University Hospital
Bern, 3010, Switzerland
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University Hospital Basel
Basel, 4031, Switzerland
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Could a bigger balloon tame the Heart's electrical chaos?
- Can a new heart ablation technique work without x-rays?
- Could a gentle sedation cocktail replace general anesthesia for heart ablation?
- Can a new freezing balloon tame a fluttering heart as well as the old one?
- Heart signals may reveal if a common AFib procedure will last
- Zapping the heart back to rhythm: a new device uses pulsed fields to treat atrial fibrillation