Cited by 521Obstructive Sleep Apnea ResearchAirway Management and Intubation TechniquesNeuroscience of respiration and sleep

Sites and sizes of fat deposits around the pharynx in obese patients with obstructive sleep apnoea and weight matched controls

Open access
Horner, RL, Mohiaddin, RH, Lowell, DG, Shea, SA, Burman, ED, Longmore, DB, Guz, A·1989·European Respiratory Journal

Abstract

It has been suggested that deposition of fat in the soft tissues surrounding the upper airway may be an important factor in the pathogenesis of obstructive sleep apnoea (OSA) in obese subjects. We have used magnetic resonance imaging to determine the site(s) and size(s) of fat deposits around the upper airway in six obese patients with OSA (116-153% of ideal body weight) and five weight-matched controls without OSA (107-152% of ideal body weight). In all subjects, large deposits of fat were present postero-lateral to the oropharyngeal airspace at the level of the soft palate. Significantly more fat was present in these regions in the patients with OSA (p = 0.03). Fat deposits in the soft palate were observed in 4 of the 6 patients with OSA but none of the controls. Fatty streaks were observed in the tongue in 2 of the 5 controls and 3 of the 6 patients with OSA. Fat deposits were observed anterior to the laryngopharyngeal airspace, in submental regions, in all obese subjects. This study shows that more fat is present in those areas surrounding the collapsable segment of the pharynx in patients with OSA, compared to equally obese control subjects without OSA.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1183/09031936.93.02070613

Cites

15 of 15 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Lateral pharyngeal wall edema and enlarged lateral pharyngeal fat pads have been identified via tissue specimens and imaging in OSA patients.

    “Lateral pharyngeal wall edema and enlarged lateral pharyngeal fat pads have been identified via tissue specimens and imaging in OSA patients.200,205,320–322”

    From International Consensus Statement on Obstructive Sleep Apnea (2023) · cites this paper as [322]

    The ‘Sizes of fat deposits and distribution about the palatopharyngeal airspace’ section reports significantly more postero-lateral fat in patients with OSA than in weight-matched controls, based on magnetic resonance imaging. The paper does not identify lateral pharyngeal wall edema or report findings from tissue specimens; its discussion of possible oedema concerns the soft palate. (LLM, conf=0.88)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 14

  1. [1]1. Mangar D, Orr WC, Smith RO. -Sleep apnoea, hyper- somnolence, and upper airway obstructive secondary to adeno- tonsillar enlargement. Arch Otolaryngol, 1977, 103, 383-386.
  2. [2]2. Coccagna G, di Dunato G, Verucchi P. Cirifnotta F, Mantovani M, Lugaresi E.-Hypersomnia with periodic apnoeas in acquired micrognathia. Arch Neurol, 1976, 33, 769-776.
  3. [4]4. Orr WC, Males JL, Imes NK. -Myxedema and obstruc- tive sleep apnoea. Am J Med, 1981, 70, 1061-1066.
  4. [7]7. Brownman CP, Sampson MG, Yolles SF, Gujavarty KS. Weller SJ, Walsleben JA, Hahn PM, Mitler MM. -Obstructive sleep apnoea and body weight. Chest, 1984, 85, 435-436.
  5. [8]8. Mathew OP, Remmers JE. -Respiratory failure of the upper airway. In: Saunders NA, Sullivan CE, eds. Sleep and breathing. New York, Dekker, 1984, pp 163-200.
  6. [9]9. Haponik EF, Smith PL, Bohlman ME, Alien RP, Goldman SM, Bleeker ER. -Computerised tomography in obstructive sleep apnoea-correlation of airway size with physiology during sleep and wakefulness. Am Rev Respir Dis, 1983, 127, 221-226.
  7. [11]11. Hamer PF, Sannit T. -A review of the international ten- twenty system of electrode placement. Grass instrument com- pany, Massachusetts, 1974.
  8. [13]13. Metropolitan Life Insurance Co.-New Weight standards for men and women. Metropolitan Life Insurance Co Statistical Bulletin, 1959, 40, 1-4.
  9. [18]18. Williams PL. Warwick R, eds. -Gray's anatomy (36th edition). London, Churchill Livingstone, 1980, pp 1302-1319.
  10. [19]19. Dooms GC, Hricak H, Margulis AR, de Geer G. -MR imaging of fat. Radiology, 1986, 158, 51-54.
  11. [21]21. Stein MG, Gamsu G, deGeer G, Golden JA, Crumley RL, Webb WR.-Cine CT in obstructive sleep apnoea. AJR, 1987, 148, 1069-1074.
  12. [26]26. Sullivan CE, Issa FG, Berthon-Jones M, Saunders NA. - Pathophysiology of sleep apnoea. In: Saunders NA, Sullivan CE, eds. Sleep and breathing. New York, Dekker, 1984, pp 299-363.
  13. [27]27. Anch AM, Remmers JE, Sauerland EK, dcGroot WJ.- Oropharyngeal patency during wakefulness and sleep in the Pickwickian syndrome: electomyographic activity of the tensor veli palantini. Electomyogr Clin Neurophysiol, 1981, 21, 317-330.
  14. [29]29. Cartwright RD.-Effect of sleep position on sleep apnoea severity. Sleep, 1984, 7, 110-114.

Cited by

Sorted by citations

Authors
Horner, R., Mohiaddin, R., Lowell, D., Shea, S., Burman, E., Longmore, D., & Guz, A.
Affiliations
Charing Cross Hospital (GB)
Venue
European Respiratory Journal
Published
1989-07-01
Volume
2
Issue
7
Pages
613-622
ISSN
  • 0903-1936 (ISSN-L)
  • 1399-3003
OpenAlex
W2135084858
Cited by
521
References
15
Citations by year
2026: 4 · 2025: 12 · 2024: 7 · 2023: 8 · 2022: 17 · 2021: 10 · 2020: 15 · 2019: 16 · 2018: 19 · 2017: 7 · 2016: 19 · 2015: 18 · 2014: 16 · 2013: 16 · 2012: 24
FWCI
4.40
Type
journal article
Language
en
Open access
Locations
  • European Respiratory Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
  • Health Sciences › Medicine › Anesthesiology and Pain Medicine › Airway Management and Intubation Techniques
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
Keywords
obstructive sleep apnea, obesity, soft palate, oropharynx, hypopharynx, submental fat, magnetic resonance imaging, airway collapsibility
MeSH terms
Adipose Tissue, Adolescent, Adult, Humans, Magnetic Resonance Imaging, Middle Aged, Nasopharynx, Obesity, Oropharynx, Palate, Soft, Pharynx, Sleep Apnea Syndromes

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review