Publications by authors named "P J Terrill"
Rationale: Excessive daytime sleepiness, an important symptom of obstructive sleep apnea (OSA), is commonly quantified using the Epworth Sleepiness Scale score (ESS). Baseline OSA severity measures (ventilatory burden, flow limitation, and hypoxemia) provide insights into OSA pathophysiology and could predict changes in sleepiness (i.e.
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- - U-Sleep, an automated sleep stager, was tested for accuracy against trained human scorers using a dataset of 50 pediatric polysomnograms and a larger clinical dataset of 3114 polysomnograms to see if it can effectively replace human analysis.
- - The study found that U-Sleep's performance was statistically equivalent to human scorers with a kappa statistic of 0.79 compared to 0.78 for humans, indicating it was reliable for sleep staging in children.
- - However, U-Sleep's accuracy decreased in children under 2 years and those with sleep-related health issues, suggesting it can be utilized clinically for pediatric patients, but caution is needed for specific subgroups.
Study Objectives: Excessive daytime sleepiness (EDS) in patients with obstructive sleep apnea is poorly explained by standard clinical sleep architecture metrics. We hypothesized that reduced sleep stage continuity mediates this connection independently from standard sleep architecture metrics.
Methods: A total of 1,907 patients with suspected obstructive sleep apnea with daytime sleepiness complaints underwent in-lab diagnostic polysomnography and next-day Multiple Sleep Latency Test.
Moderate-severe obstructive sleep apnea (OSA) (apnea-hypopnea index [AHI], >15 events/h) disturbs sleep through frequent bouts of apnea and is associated with daytime sleepiness. However, many individuals without moderate-severe OSA (i.e.
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