Evidence map›Paper›PMID 33200320›Full record

ArticleCanadian journal of anaesthesia = Journal canadien d'anesthesie2021

Anesthesiology airway-related medicolegal cases from the Canadian Medical Protection Association.

Edward T Crosby, Laura V Duggan, Patricia J Finestone, Richard Liu, Ria De Gorter, Lisa A Calder

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Canadian journal of anaesthesia = Journal canadien d'anesthesie, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
6.0field-weighted citation impact, top 3% 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

20 citing papers in PubMed, 42 citations in OpenAlex.

  1. Closing the intubation-extubation gap in airway management.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2026
    Article
  2. Article
  3. Article
  4. Medico-legal cases involving gastroenterologists in Canada between 2017 and 2021.Journal of the Canadian Association of Gastroenterology · 2026
    Article
  5. Transtracheal ultrasound for identifying endotracheal intubation in adults.The Cochrane database of systematic reviews · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Failed tracheal intubation in primary health care.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Leadership and teaching in airway management.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2021
    Article
  16. Article
  17. Seven years on from the Canadian Airway Focus Group Difficult Airway Guidelines: an observational survey.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2021
    Observational
  18. Article
  19. In reply: Personal protective equipment during the COVID-19 pandemic (Letters #1 and #2).Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2020
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Edward T CrosbyDepartment of Anesthesiology and Pain Medicine, University of Ottawa and The Ottawa Hospital, 501 Smyth Road, Ottawa, K1H 8L6, ON, Canada.
Laura V DugganDepartment of Anesthesiology and Pain Medicine, University of Ottawa and The Ottawa Hospital, 501 Smyth Road, Ottawa, K1H 8L6, ON, Canada.
Patricia J FinestoneMedical Care Analytics, Canadian Medical Protective Association, 875 Carling Avenue, Ottawa, ON, K1S 5P1, Canada.
Richard LiuMedical Care Analytics, Canadian Medical Protective Association, 875 Carling Avenue, Ottawa, ON, K1S 5P1, Canada.
Ria De GorterMedical Care Analytics, Canadian Medical Protective Association, 875 Carling Avenue, Ottawa, ON, K1S 5P1, Canada.
Lisa A CalderMedical Care Analytics, Canadian Medical Protective Association, 875 Carling Avenue, Ottawa, ON, K1S 5P1, Canada. research@cmpa.org.ORCID http://orcid.org/0000-0002-2159-4245
Canadian Medical Protective Association · CAUniversity of Ottawa · CAOttawa Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe analyzed closed civil legal cases in 2007-2016 from the Canadian Medical Protective Association (CMPA) involving specialist anesthesiologists where airway management was the central concern.

methodsWe included all airway-related civil legal cases involving specialist anesthesiologists that closed from 2007 to 2016. The following variables were abstracted by CMPA medical analysts: clinical context, peer expert opinions of contributing factors, and patient and legal outcomes.

resultsWe found 46 of the 406 (11%) closed cases involving anesthesiologists to be airway-related. Twenty-six cases (57%) involved elective surgery and 31 patients (67%) were categorized as American Society of Anesthesiologists physical status III. Twenty-five cases (54%) occurred outside the operating room (e.g., postanesthesia care unit, intensive care unit, or other satellite locations). In 19 (42%) cases, there was at least one predictor of a difficult airway. Peer experts identified judgement failures in 30 cases (65%), most commonly inadequate airway evaluation. In 30 cases (65%), the patient died or had a permanent brain injury. The medicolegal outcome favoured the patient in 27 (59%) cases, with a median [interquartile range] payment of 422,845 [257,637-935,673] CAD.

conclusionsSevere patient harm is common when airway management is the focus of a CMPA medicolegal complaint involving anesthesiologists. Patients were otherwise typically low risk cases presenting for elective surgery. Failure to assess or to change management based on the airway exam or encountered difficulty were the most common errors. Our findings support the continued need for adoption, adherence, and practice of guidelines for anticipated and unanticipated difficult airway management for every patient encounter.

Indexed as

AnesthesiologyAirway ManagementAnesthesiologistsCanadaHumansIntubationairwayanesthesiologymalpractice

Identifiers

PMID33200320
PMCPMC7668407
OpenAlexW3102360451

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.