Trial reportThe Laryngoscope2026
Evaluating Sleep Apnea: In-Lab Versus at-Home Recording Time and the Impact of Positional Disease.
Trial report in The Laryngoscope, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Analysis of positional obstructive sleep apnea features in 12,000 patients at a sleep center.Sleep & breathing = Schlaf & Atmung · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo determine the minimum required recording time (RRT) for in-lab Type 1 polysomnography (PSG1) and home sleep apnea test with Type 3 portable monitoring (HSAT) that consistently reflects the full-night apnea-hypopnea index (AHI) in patients with and without positional obstructive sleep apnea (OSA).
methodsThis prospective randomized crossover trial with 54 consecutive patients with suspected OSA involved PSG1 and HSAT no more than 7 days apart (108 exams). Each test was analyzed in 60-min intervals. Minimum RRT was the point the test achieved and maintained an AHI difference < 5 events/h from end-test AHI. Patients were grouped into non-positional and positional OSA, and by severity subgroups.
resultsMinimum RRT in PSG1/HSAT was 4 h/2 h for the entire cohort, 5 h/3 h for non-positional OSA and 6 h/2 h for positional OSA, respectively. Patients with AHI < 15 events/h showed minimum RRT of 2 h in both exams and a clinically irrelevant AHI difference (below 5 events/h) between PSG1 and HSAT after 4 h. Conversely, patients with AHI ≥ 15 events/h presented minimum RRT of 6 h/4 h in PSG1/HSAT, respectively. By adopting an AHI difference threshold of < 10 events/h, minimum RRT in this latter group was 4 h/2 h in PSG1/HSAT.
conclusionTo account for the influence of positional and non-positional OSA, the minimum required recording times for PSG1 and HSAT that safely reflect the end-test AHI are 6 and 3 h, respectively. Unlike HSAT, positional OSA hinders PSG1's ability to adequately anticipate end-test AHI until the exam is nearly complete. LEVEL OF EVIDENCE: 2:
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