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Simple sleep trick may ease Post-Surgery apnea

NCT ID NCT02152202

Completed Symptom relief Sponsor: University Health Network, Toronto Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether sleeping in a semi-upright position (45-degree angle) after surgery could prevent sleep apnea from getting worse. 164 adults with sleep apnea who were having elective inpatient surgery took part. Half slept semi-upright and half slept flat on their backs. The researchers measured breathing problems on the second night after surgery.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
semi-upright sleeping position
What this could lead to
If it works, this could offer a simple, drug-free way to prevent sleep apnea from getting worse after surgery.
What could go wrong
This is a small, early proof-of-concept study. The effect may be small or not apply to all patients. Sleeping position is just one factor among many.

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.

obstructive sleep apnea syndrome

As listed by the trial registrant

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

OBSTRUCTIVE SLEEP APNEA

Contacts and locations

Locations

  • Mount Sinai Hospital, Department of Anesthesia

    Toronto, Ontario, M5G 1X5, Canada

  • Toronto Western Hospital, Department of Aneshtesia

    Toronto, Ontario, M5T2S8, Canada

  • Toronto Western Hospital, Department of Aneshtesia

    Toronto, Ontario, Canada

  • University Health Network, Department of Anesthesia

    Toronto, Ontario, M5T2S8, Canada

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