ArticleSleep & breathing = Schlaf & Atmung2020
Intra-night variation in apnea-hypopnea index affects diagnostics and prognostics of obstructive sleep apnea.
Article in Sleep & breathing = Schlaf & Atmung, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
5 citing papers in PubMed.
- Polysomnographic features of hypoglossal nerve stimulation efficacy: Looking deeper than the apnea-hypopnea index.Laryngoscope investigative otolaryngology · 2025Article
- QTc prolongation is associated with severe desaturations in stroke patients with sleep apnea.BMC pulmonary medicine · 2022Article
- PSG-Audio, a scored polysomnography dataset with simultaneous audio recordings for sleep apnea studies.Scientific data · 2021Article
- Longer apneas and hypopneas are associated with greater ultra-short-term HRV in obstructive sleep apnea.Scientific reports · 2020Article
- Severe desaturations increase psychomotor vigilance task-based median reaction time and number of lapses in obstructive sleep apnoea patients.The European respiratory journal · 2020Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
backgroundDiagnostics of obstructive sleep apnea (OSA) is based on apnea-hypopnea index (AHI) determined as full-night average of occurred events. We investigate our hypothesis that intra-night variation in the frequency of obstructive events affects diagnostics and prognostics of OSA and should therefore be considered in clinical practice.
methodsPolygraphic recordings of 1989 patients (mean follow-up 18.3 years) with suspected OSA were analyzed. Number and severity of individual obstructive events were calculated hourly for the first 6 h of sleep. OSA severity was determined based on the full-night AHI and AHI for the 2 h when the obstructive event frequency was highest (AHI
resultsFrequency and duration of obstructive events varied hour-by-hour increasing towards morning. Using AHI
conclusionsCurrently, the intra-night variation in frequency and severity of obstructive events is completely ignored by conventional, full-night AHI and considering this information could improve the diagnostics of OSA.
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Registered trials
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