Article

Obstructive sleep apnea (OSA) is commonly found in individuals with
traumatic brain injury (TBI) and may exacerbate TBI-related symptoms. Nocturnal
polysomnography (NPSG) is considered the gold standard for detecting the presence
of sleep apnea. However, there is a limitation with its use known as the
"first-night effect" (aberrant polysomnography findings on the first night in a
sleep lab). OBJECTIVE: The primary objectives were to investigate the
night-to-night consistency of diagnosing and classifying obstructive sleep apnea
in individuals with TBI, and ascertain if individuals with TBI are prone to a
first-night effect. METHODS: 47 community-dwelling adults with self-reported
mild-to-severe TBI underwent two nights of in-laboratory NPSG to examine
variability between the first and second night with regards to OSA diagnosis and
severity as well as sleep architecture. RESULTS: OSA detection and severity were
consistent from night-to-night in 89% of participants with TBI. Participants with
TBI demonstrated longer REM latency on the first night compared to the second
night of sleep study. CONCLUSIONS: These findings indicate that two nights of
in-laboratory NPSG are generally consistent in reliably diagnosing OSA in
individuals with TBI and that first-night effects are minimal. One night of NPSG
has diagnostic utility in the evaluation of sleep disorders in individuals with
TBI.

Langue : ANGLAIS