Evidence map›Paper›PMID 31165199›Full record

ArticleHNO2019

Polysomnography and sleep position, a Heisenberg phenomenon? : A large-scale series.

P E Vonk, N de Vries, M J L Ravesloot

Abstract read
PubMed Publisher
In one paragraph

Article in HNO, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. Trial
  2. Clinical screening tools for obstructive sleep apnea in a population with atrial fibrillation: a diagnostic accuracy trial.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2021
    Trial
  3. Research progress on the clinical subtyping of obstructive sleep apnea hypopnea syndrome.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2024
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
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  11. Body position during laboratory and home polysomnography compared to habitual sleeping position at home.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Role of drug-induced sleep endoscopy in evaluation of positional vs non-positional OSA.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

P E VonkDepartment of Otorhinolaryngology, Head and Neck surgery, OLVG, location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands. p.e.vonk@olvg.nl.
N de VriesDepartment of Otorhinolaryngology, Head and Neck surgery, OLVG, location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.
M J L RaveslootDepartment of Otorhinolaryngology, Head and Neck surgery, OLVG, location West, Jan Tooropstraat 164, 1061 AE, Amsterdam, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe severity of position-dependent obstructive sleep apnea (POSA) depends on the nonsupine and supine apnea-hypopnea index (AHI) as well as the time spent in supine position. The latter in particular is susceptible to variation. Several small-scale studies suggest that wearing polysomnography (PSG) apparatus leads to an increase in supine sleeping position.

objectivesThe aim of this study was to evaluate the effect of wearing PSG apparatus on sleeping position and on OSA severity. MATERIAL AND

methodsA large-scale, retrospective study was performed, including a consecutive series of POSA and non-apneic snoring patients who were prescribed positional therapy (Sleep Position Trainer [SPT]). The effect of wearing PSG apparatus on sleeping position was evaluated by comparing body position during the PSG night and inactive (diagnostic) phase of SPT.

resultsThe mean percentage of total recording time (TRT) in supine position was 43.1% during the PSG night phase compared with 28.6% of TRT during the inactive (diagnostic) phase of SPT; i.e., a significant decrease of 33.6% (p < 0.001). When adjusting the AHI using TRT in different sleeping positions measured with the SPT, the median AHI decreased from 13.3/h (9.0-20.4) to 10.3/h (6.8-16.2); p < 0.001. When using the adjusted AHI, 33% (N = 66) of all patients had a change in OSA severity.

conclusionsThe results of this study indicate that wearing PSG apparatus leads to an increase in the percentage of supine sleeping position causing an overestimation of OSA severity, especially in patients with POSA. This can have significant impact on both clinical and scientific practice.

Indexed as

Sleep Apnea, ObstructiveSnoringSupine PositionHumansPolysomnographyRetrospective StudiesSeveritySleep apnea, obstructiveSleep wake disordersSnoringSupine position

Identifiers

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.