Evidence map›Paper›PMID 33347610›Full record

ReviewThe Journal of physiology2021

Silent hypoxaemia in COVID-19 patients.

Tatum S Simonson, Tracy L Baker, Robert B Banzett, Tammie Bishop, Jerome A Dempsey, Jack L Feldman, Patrice G Guyenet, Emma J Hodson, Gordon S Mitchell, Esteban A Moya and 9 more

Open access · bronzeAbstract readReview
In one paragraph

Review in The Journal of physiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 3 pooled it
6.5field-weighted citation impact, top 2% of its field
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

61 citing papers in PubMed, 3 syntheses or guidelines pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Observational
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Reframing SpOFrontiers in physiology · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Determining the effects of elevated partial pressure of oxygen on hypercapnia-induced cerebrovascular reactivity.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article

1 more citing papers are in PubMed but not listed here.

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

19 authors at 10 institutions in 3 countries.

Tatum S SimonsonDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.ORCID 0000-0003-4062-2587
Tracy L BakerDepartment of Comparative Biosciences, University of Wisconsin -, Madison, WI, USA.ORCID 0000-0001-9047-3052
Robert B BanzettDivision of Pulmonary, Critical Care, & Sleep Medicine Beth Israel Deaconess Medical Center, Department of Medicine, Harvard Medical School, Boston, MA, USA.ORCID 0000-0002-3626-5735
Tammie BishopTarget Discovery Institute, University of Oxford, Oxford, UK.ORCID 0000-0003-3308-9139
Jerome A DempseyDepartment of Population Health Sciences, School of Medicine and Public Health, University of Wisconsin -, Madison, WI, USA.
Jack L FeldmanDepartment of Neurobiology, University of California, Los Angeles, CA, USA.ORCID 0000-0003-3692-9412
Patrice G GuyenetDepartment of Pharmacology, School of Medicine, University of Virginia, Charlottesville, VA, USA.ORCID 0000-0003-1739-2306
Emma J HodsonThe Francis Crick Institute, London, UK.ORCID 0000-0003-3646-9348
Gordon S MitchellDepartment of Physical Therapy, Center for Respiratory Research and Rehabilitation, College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA.
Esteban A MoyaDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
Brandon T NokesDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
Jeremy E OrrDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
Robert L OwensDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
Marc PoulinDepartments of Physiology & Pharmacology and Clinical Neurosciences, Cumming School of Medicine and Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.ORCID 0000-0002-1798-6801
Jean M RawlingDepartments of Family Medicine, University of Calgary, Calgary, Alberta, Canada.ORCID 0000-0002-1768-386X
Christopher N SchmicklDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
Jyoti J WattersDepartment of Comparative Biosciences, University of Wisconsin -, Madison, WI, USA.
Magdy YounesSleep Disorders Centre, University of Manitoba, Winnipeg, Manitoba, Canada.
Atul MalhotraDivision of Pulmonary, Critical Care, & Sleep Medicine, Department of Medicine, University of California, San Diego, CA, USA.
University of California System · USUniversity of Wisconsin–Madison · USUniversity of Calgary · CABeth Israel Deaconess Medical Center · USUniversity of California, Los Angeles · USUniversity of Cambridge · GBUniversity of Florida Health · USUniversity of Manitoba · CAUniversity of Oxford · GBUniversity of Virginia · US

Funding

Neural control of breathingR35HL135779 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FELDMAN, JACK L · 2017 to 2023
$5.6M
Functional Dissection of Medullary Respiratory MicrocircuitsR01NS072211 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FELDMAN, JACK L · 2010 to 2020
$3.8M
Is Obstructive Sleep Apnea Important in the Development of Alzheimer's DiseaseR01AG063925 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL · 2020 to 2024
$3.7M
Single Motor Unit Genioglossus Recordings to Understand Sleep Apnea PathogenesisR01HL085188 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL · 2008 to 2018
$3.5M
Underlying mechanisms of obesity-induced obstructive sleep apneaR01HL148436 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Atul Malhotra · 2020 to 2026
$3.4M
Mechanisms of inactivity-induced respiratory plasticityR01HL105511 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI BAKER, TRACY L · 2011 to 2020
$3.3M
The relationship between sleep apnea and Alzheimer's disease in a unique mouse model: role for microgliaR01HL142752 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI BAKER, TRACY L, WATTERS, JYOTI J · 2019 to 2022
$3.0M
Training in the Next Generation in Respiratory ScienceT32HL134632 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL, POWELL, FRANK L. · 2017 to 2021
$2.1M
Obstructive Sleep Apnea Endotypes and Impact on Phenotypes of People Living with HIVR01HL142114 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GRANT, IGOR, OWENS, ROBERT LLEWELLYN · 2018 to 2021
$2.0M
RESPIRATORY CONTROL AND EMOTION REGULATIONR01AT012412 · NCCIH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FELDMAN, JACK L · 2022 to 2025
$1.9M
Assessment of Upper Airway Mechanics Using Newer Electromyographic TechniquesK24HL132105 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MALHOTRA, ATUL · 2016 to 2020
$611k
Integrating physiology and genomics to reveal functional adaptation in high-altitK99HL118215 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SIMONSON, TATUM S · 2014 to 2014
$85k
NCCIH NIH HHS R01 AT012412NHLBI NIH HHS K24 HL132105NHLBI NIH HHS K99 HL118215NHLBI NIH HHS R01 HL085188NHLBI NIH HHS R01 HL105511NHLBI NIH HHS R01 HL142114NHLBI NIH HHS R01 HL142752NHLBI NIH HHS R01 HL148436NHLBI NIH HHS R35 HL135779NHLBI NIH HHS T32 HL134632NIA NIH HHS R01 AG063925NINDS NIH HHS R01 NS072211
6 · The paper itself

Abstract

The clinical presentation of COVID-19 due to infection with SARS-CoV-2 is highly variable with the majority of patients having mild symptoms while others develop severe respiratory failure. The reason for this variability is unclear but is in critical need of investigation. Some COVID-19 patients have been labelled with 'happy hypoxia', in which patient complaints of dyspnoea and observable signs of respiratory distress are reported to be absent. Based on ongoing debate, we highlight key respiratory and neurological components that could underlie variation in the presentation of silent hypoxaemia and define priorities for subsequent investigation.

Indexed as

COVID-19DyspneaHumansHypoxiaSARS-CoV-2COVID-19dyspnoeahappy hypoxiaSARS-CoV-2silent hypoxaemia

Identifiers

PMID33347610
PMCPMC7902403
OpenAlexW3114790938

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.