Freeze or pills? new study tests best way to control stubborn irregular heartbeat
Disease control
Completed
This study tested two treatments for people with persistent atrial fibrillation (a type of irregular heartbeat that lasts for weeks). One treatment uses a special balloon to freeze small areas in the heart (cryoablation), and the other uses standard heart rhythm medications. The …
Phase: PHASE4 • Sponsor: Hospital San Carlos, Madrid • Aim: Disease control
Last updated May 17, 2026 05:33 UTC