High-Energy showdown: 360J vs 200J shocks for AFib
NCT ID NCT06556667
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This trial compares two defibrillators—one delivering a maximum of 200 joules and the other 360 joules—to see which is better at restoring normal heart rhythm in people with persistent atrial fibrillation. About 376 adults scheduled for elective cardioversion will be randomly assigned to receive a shock from one of the two devices. The main goal is to see which device achieves a successful conversion to sinus rhythm more often.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
biphasic defibrillator shock (200J or 360J)
What this could lead to
If successful, this could show that a higher-energy shock is more effective at restoring normal heart rhythm during cardioversion for atrial fibrillation.
What could go wrong
This is a small, early-stage trial focused on a single procedure. Results may not apply to all patients or defibrillator brands, and higher energy may cause more discomfort or rare complications.
Disclaimer
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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University of Ottawa Heart Institute
RECRUITINGOttawa, Ontario, K1Y 4W7, Canada
Contact Email: •••••@•••••
Contact
Contact Email: •••••@•••••