Publications by authors named "A Oksenberg"
Article Synopsis
- Arousal burden (AB) measures the cumulative duration of sleep interruptions relative to total sleep time, with the hypothesis that AB peaks when sleeping on the back and during non-rapid eye movement stage 1 (N1).
- The study involved expert analysis of sleep recordings from 50 participants, revealing that AB was significantly higher in the supine position and during N1, as well as differing among the scorers.
- The findings suggest a strong correlation between AB and the arousal index (ArI), but also highlight the variability in AB measurements among scorers, indicating a need for improved scoring techniques.
Introduction: Intermittent hypoxaemia is closely associated with cardiovascular dysfunction and may be a more accurate indicator of obstructive sleep apnoea (OSA) severity than conventional metrics. Another key factor is the lung-to-finger circulation time (LFCt), defined as the duration from the cessation of a respiratory event to the lowest point of oxygen desaturation. LFCt serves as a surrogate marker for circulatory delay and is linked with cardiovascular function.
View Article and Find Full Text PDFStudy 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.
Background: Excessive daytime sleepiness (EDS) is a cause of low quality of life among obstructive sleep apnoea (OSA) patients. Current methods of assessing and predicting EDS are limited due to time constraints or differences in subjective experience and scoring. Electroencephalogram (EEG) power spectral densities (PSDs) have shown differences between OSA and non-OSA patients, and fatigued and non-fatigued patients.
View Article and Find Full Text PDFPolygraphy (PG) is often used to diagnose obstructive sleep apnea (OSA). However, it does not use electroencephalography, and therefore cannot estimate sleep time or score arousals and related hypopneas. Consequently, the PG-derived respiratory event index (REI) differs from the polysomnography (PSG)-derived apnea-hypopnea index (AHI).
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