Can a sleep machine tame a fluttering heart?
NCT ID NCT04513483
First seen Jan 20, 2026 · Last updated Jun 22, 2026 · Updated 20 times
Summary
This study looked at whether using a CPAP machine at night can reduce episodes of atrial fibrillation (a type of irregular heartbeat) in people who also have obstructive sleep apnea. Twenty-five adults with both conditions were enrolled. Half used CPAP while the other half were observed. The goal was to see if CPAP lowers the time spent in AFib and improves quality of life.
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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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Contacts and locations
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Locations
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National Taiwan University Hospital
Taipei, Taiwan
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
continuous positive airway pressure (CPAP) device
What this could lead to
If successful, CPAP could become a standard add-on treatment to help control atrial fibrillation in patients with sleep apnea.
What could go wrong
This is a very small, early-stage study with only 25 participants. Results may not apply to everyone, and CPAP may not significantly reduce AF burden.
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.