Evidence map›Paper›PMID 30286122›Full record

SynthesisPloS one2018

Is obstructive sleep apnea associated with difficult airway? Evidence from a systematic review and meta-analysis of prospective and retrospective cohort studies.

Mahesh Nagappa, David T Wong, Crispiana Cozowicz, Satya Krishna Ramachandran, Stavros G Memtsoudis, Frances Chung

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Chinese Guidelines for the Diagnosis and Surgical Treatment of Adult Obstructive Sleep Apnea (2024).World journal of otorhinolaryngology - head and neck surgery · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Expert consensus on difficult airway assessment.Hepatobiliary surgery and nutrition · 2023
    Review
  9. Review
  10. Observational
  11. Observational
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Observational
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

6 authors at 4 institutions in 3 countries.

Mahesh NagappaDepartment of Anesthesia & Perioperative Medicine, University Hospital, Victoria Hospital and St. Joseph Hospital, London Health Sciences Centre and St. Joseph Health Care, Western University, London, ON, Canada.
David T WongDepartment of Anesthesia and Pain Medicine, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada.
Crispiana CozowiczDepartment of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY, United States of America.ORCID 0000-0002-8058-4135
Satya Krishna RamachandranDepartment of Anesthesia, Critical Care and Pain Medicine, Harvard Medical School, Beth Israel Deaconess Medical Center, Harvard University, Boston, Massachusetts, United States of America.
Stavros G MemtsoudisDepartment of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery and Weill Cornell Medical College, New York, NY, United States of America.
Frances ChungDepartment of Anesthesia and Pain Medicine, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, ON, Canada.ORCID 0000-0001-9576-3606
Hospital for Special Surgery · USUniversity Health Network · CABeth Israel Deaconess Medical Center · USWestern University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDifficult airway management and obstructive sleep apnea may contribute to increased risk of perioperative morbidity and mortality. The objective of this systematic review and meta-analysis (SRMA) is to evaluate the evidence of a difficult airway being associated with obstructive sleep apnea (OSA) patients undergoing surgery.

methodsThe standard databases were searched from 1946 to April 2017 to identify the eligible articles. The studies which included adult surgical patients with either suspected or diagnosed obstructive sleep apnea must report at least one difficult airway event [either difficult intubation (DI), difficult mask ventilation (DMV), failed supraglottic airway insertion or difficult surgical airway] in sleep apnea and non-sleep apnea patients were included.

resultsOverall, DI was 3.46-fold higher in the sleep apnea vs non-sleep apnea patients (OSA vs. non-OSA: 13.5% vs 2.5%; OR 3.46; 95% CI: 2.32-5.16, p <0.00001). DMV was 3.39-fold higher in the sleep apnea vs non-sleep apnea patients (OSA vs. non-OSA: 4.4% vs 1.1%; OR 3.39; 95% CI: 2.74-4.18, p <0.00001). Combined DI and DMV was 4.12-fold higher in the OSA vs. non-OSA patients (OSA vs. non-OSA: 1.1% vs 0.3%; OR 4.12; 95% CI: 2.93-5.79, p <0.00001). There was no significant difference in the supraglottic airway failure rates in the sleep apnea vs non-sleep apnea patients (OR: 1.34; 95% CI: 0.70-2.59; p = 0.38). Meta-regression to adjust for various subgroups and baseline confounding factors did not impact the final inference of our results.

conclusionThis SRMA found that patients with obstructive sleep apnea had a three to four-fold higher risk of difficult intubation or mask ventilation or both, when compared to non-sleep apnea patients.

Indexed as

AdultAgedAirway ManagementFemaleHumansMaleMiddle AgedPolysomnographyPostoperative ComplicationsProspective StudiesRetrospective StudiesRisk FactorsSleep Apnea, ObstructiveTreatment Outcome

Identifiers

PMID30286122
PMCPMC6171874
OpenAlexW2895014714

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.