Sleep apnea device may keep heart rhythm in check

NCT ID NCT07358429

Ongoing Disease control Sponsor: Medical University of Sofia Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether using a CPAP machine at night can reduce the chance of atrial fibrillation (an irregular heartbeat) returning in people who have both sleep apnea and a history of AF. Researchers will follow 91 adults for 12 months, tracking how often they use CPAP and checking for AF recurrence with ECG and Holter monitors.

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 CPAP adherence reduces AF recurrence, it could point to a simple way to manage heart rhythm problems in sleep apnea patients.
What could go wrong: This is an observational study, not a randomized trial, so results may be less definitive. CPAP adherence varies, and the small size (91 people) limits how much we can conclude.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation obstructive sleep apnea syndrome paroxysmal atrial fibrillation sleep apnea syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ATRIAL FIBRILLATION (PAROXYSMAL) OBSTRUCTIVE SLEEP APNEA (OSA)

Contacts and locations

Locations

UMHAT "Tcaritca Joanna - ISUL"

Sofia, 1000, Bulgaria

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