Plain-English translation of NCT05903170 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Read our Atrial Fibrillation research guide →This study doesn't follow the usual testing phases — it may be an observational study or a different type of research.
Atrial fibrillation is an irregular heartbeat that affects millions of people. This trial is testing whether the strength of electrical shocks used to restore normal heart rhythm matters. Researchers want to find out if using a higher initial shock strength works better than starting with a lower strength, so they can help doctors choose the best approach for each patient.
Doctors have been using electrical cardioversion (electrical shocks) to treat atrial fibrillation for over 60 years, but most guidance is based on older technology. This trial exists because modern defibrillators work differently, and doctors aren't sure if the old recommendations about shock strength still apply to today's devices.
You likely qualify if…
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If you qualify and enroll, you will receive cardioversion (electrical shocks to restore normal heart rhythm) using one of two defibrillators with different shock strengths. The procedure follows a set protocol: if the first shock doesn't work, your doctor will try a second shock with pads in a different position, and a third if needed. You won't need additional visits beyond your scheduled cardioversion appointment; the trial is focused on comparing which shock strength works best during that one procedure.
AI-generated summary from trial data · Jul 1, 2026 · Not medical advice
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