Sleep position, patient comfort, and technical performance with two established procedures for home sleep testing

Area of Science:

• Sleep Medicine
• Respiratory Physiology
• Medical Device Technology

Background:

• Obstructive sleep apnea (OSA) diagnosis often relies on home sleep testing (HST).
• Cardiorespiratory polygraphy (RP) is a common HST method, but peripheral arterial tonometry (PAT) is emerging as an alternative.
• Comparing the efficacy and patient experience of RP versus PAT in HST is crucial.

Purpose of the Study:

• To compare sleep position, patient comfort, and technical failure rates between RP and PAT for HST in suspected OSA patients.
• To evaluate the clinical relevance of differences observed in sleep positioning.
• To assess patient preference for future OSA diagnostic testing.

Main Methods:

• A randomized study involving 56 patients with suspected OSA undergoing two nights of HST.
• Comparison of sleep position, patient comfort, and technical failure rates between RP and PAT.
• Patient self-reporting on comfort, disturbances, and preference for testing methods.

Main Results:

• PAT showed significantly less time in the supine position compared to RP, though not clinically significant.
• Patients reported greater comfort, fewer disturbances, less sensor loss, and fewer awakenings with PAT.
• PAT testing demonstrated fewer technical failures and was preferred by 88% of patients for future investigations.
• Despite increased finger probe pain, 80% rated PAT as the superior test.

Conclusions:

• Home sleep testing with PAT results in less supine sleep positioning, potentially beneficial for specific patients.
• PAT is associated with reduced technical failures and improved patient-reported comfort and sleep quality during HST.
• PAT is perceived as a superior and preferred method for diagnosing obstructive sleep apnea compared to RP.