Sleep-disordered breathing in healthy aged persons: possible daytime sequelae

Area of Science:

• Gerontology
• Sleep Medicine
• Pulmonology

Background:

• Sleep-disordered breathing (SDB) is prevalent in older adults.
• The impact of SDB on daytime functioning in healthy aging populations requires further investigation.
• Current diagnostic criteria for sleep apnea may not be universally applicable across different age groups.

Purpose of the Study:

• To evaluate the relationship between SDB and daytime functioning in healthy older individuals.
• To determine if the standard apnea-hypopnea index (AHI) cutoff is appropriate for diagnosing sleep apnea in this demographic.
• To assess the medical, sleep, and psychological status of healthy older persons with varying levels of SDB.

Main Methods:

• Assessed overnight sleep and breathing patterns in 34 healthy older participants.
• Measured daytime medical, sleep, and psychological status.
• Categorized participants based on apnea-hypopnea index (AHI) levels (≥5 vs. <5).

Main Results:

• No significant relationship was found between SDB and any measured aspects of daytime functioning.
• Participants with an AHI ≥ 5 (mean AHI = 14.6) showed no significant impairment in daytime performance compared to those with lower AHI (mean AHI = 1.0).
• The standard AHI cutoff of ≥ 5 for diagnosing sleep apnea syndrome was not indicative in this healthy aged cohort.

Conclusions:

• SDB in healthy older persons appears to be of minimal immediate concern regarding daytime functioning.
• The diagnostic utility of the AHI ≥ 5 cutoff for sleep apnea syndrome is questionable in healthy aged individuals.
• Findings may not generalize to older adults with pre-existing health conditions.