Cited by 888Obstructive Sleep Apnea ResearchSleep and related disordersApelin-related biomedical research

Obstructive Sleep Apnea

Open access
Drager, Luciano F., Togeiro, Sônia M., Polotsky, Vsevolod Y., Lorenzi-Filho, Geraldo·2013·Journal of the American College of Cardiology

Abstract

Obstructive sleep apnea (OSA) is an underdiagnosed condition characterized by recurrent episodes of obstruction of the upper airway leading to sleep fragmentation and intermittent hypoxia during sleep. Obesity predisposes to OSA, and the prevalence of OSA is increasing worldwide because of the ongoing epidemic of obesity. Recent evidence has shown that surrogate markers of cardiovascular risk, including sympathetic activation, systemic inflammation, and endothelial dysfunction, are significantly increased in obese patients with OSA versus those without OSA, suggesting that OSA is not simply an epiphenomenon of obesity. Moreover, findings from animal models and patients with OSA show that intermittent hypoxia exacerbates the metabolic dysfunction of obesity, augmenting insulin resistance and nonalcoholic fatty liver disease. In patients with the metabolic syndrome, the prevalence of moderate to severe OSA is very high (∼60%). In this population, OSA is independently associated with increased glucose and triglyceride levels as well as markers of inflammation, arterial stiffness, and atherosclerosis. A recent randomized, controlled, crossover study showed that effective treatment of OSA with continuous positive airway pressure for 3 months significantly reduced several components of the metabolic syndrome, including blood pressure, triglyceride levels, and visceral fat. Finally, several cohort studies have consistently shown that OSA is associated with increased cardiovascular mortality, independent of obesity. Taken together, these results support the concept that OSA exacerbates the cardiometabolic risk attributed to obesity and the metabolic syndrome. Recognition and treatment of OSA may decrease the cardiovascular risk in obese patients.

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 · 10.1016/j.jacc.2013.05.045

Cites

87 of 87 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?

  • An increased risk of cardiopulmonary disease and mortality has been established for clinically relevant OSA (AHI ≥ 15).

    “where an increased risk of cardiopulmonary disease and mortality has been established (true positive)432–434”

    From International Consensus Statement on Obstructive Sleep Apnea (2023) · cites this paper as [432]

    The paper’s Abstract (page unavailable) reports that cohort studies consistently associate OSA with increased cardiovascular mortality, and its section on independent cardiometabolic effects reports an association with cardiovascular events. It defines moderate-to-severe OSA as AHI ≥15, but does not establish that threshold specifically for the reported risks or address pulmonary disease risk. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Central adiposity is linked to the development of both obstructive sleep apnea and metabolic syndrome, with both sharing similar pathophysiological features such as systemic inflammation and endothelial dysfunction.

    “Central adiposity is linked to the development of both OSA and the metabolic syndrome, with both sharing similar pathophysiological features (eg, systemic inflammation, endothelial dysfunction).47”

    From Obstructive Sleep Apnea and Cardiovascular Disease: A Scientific Statement From the American Heart Association (2021) · cites this paper as [47]

    The review’s Abstract links obesity to OSA and reports systemic inflammation and endothelial dysfunction in obese patients with OSA. Its discussion of why OSA is common in obesity and metabolic syndrome also describes a role for abdominal fat in airway narrowing. However, the cited passages do not establish that central adiposity contributes to the development of metabolic syndrome or that both conditions share the two named features. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • Intermittent hypoxia of adipose tissue, sympathetic activation, induction of adipocytokines, and oxidative stress may promote the development of metabolic risk factors.

    “In addition, intermittent hypoxia of adipose tissue, sympathetic activation, induction of adipocytokines, and oxidative stress may promote the development of metabolic risk factors.47”

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

1 retracted

Flagged first, then by citations

Research works printed but not linked: 1

  1. [60]60. Pedrosa RP, Krieger EM, Lorenzi-Filho G, Drager LF. Recent advances of the impact of obstructive sleep apnea on systemic hyper- tension. Arq Bras Cardiol 2011;97:e40-7.

Cited by

Sorted by citations

Authors
Drager, L. F., Togeiro, S. M., Polotsky, V. Y., & Lorenzi-Filho, G.
Affiliations
  • Universidade de São Paulo (BR)
  • Universidade Federal de São Paulo (BR)
  • Johns Hopkins University (US)
Corresponding author
Drager, Luciano F.
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2013-08
Volume
62
Issue
7
Pages
569-576
ISSN
0735-1097 (ISSN-L)
OpenAlex
W82112906
Cited by
886
References
87
Citations by year
2026: 103 · 2025: 106 · 2024: 77 · 2023: 56 · 2022: 71 · 2021: 80 · 2020: 82 · 2019: 50 · 2018: 49 · 2017: 37 · 2016: 58 · 2015: 63 · 2014: 47 · 2013: 7
FWCI
40.18
Type
journal article
Language
en
Open access
Locations
  • Journal of the American College of Cardiology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
National Heart, Lung, and Blood Institute (R01HL080105)
Topics
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Health Sciences › Medicine › Pharmacology › Apelin-related biomedical research
Keywords
obstructive sleep apnea, obesity, metabolic syndrome, intermittent hypoxia, insulin resistance, non-alcoholic fatty liver disease, cardiovascular risk, continuous positive airway pressure, arterial stiffness, atherosclerosis, cardiovascular mortality, endothelial dysfunction, systemic inflammation, sympathetic activation
MeSH terms
Adult, Aged, Cardiovascular Diseases, Female, Humans, Hypertension, Insulin Resistance, Male, Middle Aged, Obesity, Prognosis, Comorbidity, Body Mass Index, Incidence, Randomized Controlled Trials as Topic, Treatment Outcome, Risk Assessment, Cross-Over Studies, Sleep Apnea, Obstructive, Metabolic Syndrome, Continuous Positive Airway Pressure

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