Evidence map›Paper›PMID 32627569›Full record

ReviewThe bone & joint journal2020

The theoretical mortality risk of an asymptomatic patient with a negative SARS-CoV-2 test developing COVID-19 following elective orthopaedic surgery.

Nardeen Kader, Nick D Clement, Vipul R Patel, Nick Caplan, Paul Banaszkiewicz, Deiary Kader

Abstract readReview
PubMed Publisher
In one paragraph

Review in The bone & joint journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 5% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Guideline
  2. Article
  3. Article
  4. Safe Surgery During the COVID-19 Pandemic.Current obesity reports · 2022
    Review
  5. Observational
  6. Article
  7. Article
  8. Observational
  9. Article
  10. Article
  11. Re-starting elective orthopaedic services in NHS Tayside during the COVID-19 pandemic.The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Nardeen KaderSouth West London Elective Orthopaedic Centre, Epsom, UK.
Nick D ClementSouth West London Elective Orthopaedic Centre, Epsom, UK.
Vipul R PatelSouth West London Elective Orthopaedic Centre, Epsom, UK.
Nick CaplanFaculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, Tyne and Wear, UK.
Paul BanaszkiewiczQueen Elizabeth Hospital Gateshead, Gateshead, UK.
Deiary KaderSouth West London Elective Orthopaedic Centre, Epsom, UK.
Epsom Hospital · GBNorthumbria University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe risk to patients and healthcare workers of resuming elective orthopaedic surgery following the peak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has been difficult to quantify. This has prompted governing bodies to adopt a cautious approach that may be impractical and financially unsustainable. The lack of evidence has made it impossible for surgeons to give patients an informed perspective of the consequences of elective surgery in the presence of SARS-CoV-2. This study aims to determine, for the UK population, the probability of a patient being admitted with an undetected SARS-CoV-2 infection and their resulting risk of death; taking into consideration the current disease prevalence, reverse transcription-polymerase chain reaction (RT-PCR) testing, and preassessment pathway.

methodsThe probability of SARS-CoV-2 infection with a false negative test was calculated using a lower-end RT-PCR sensitivity of 71%, specificity of 95%, and the UK disease prevalence of 0.24% reported in May 2020. Subsequently, a case fatality rate of 20.5% was applied as a worst-case scenario.

resultsThe probability of SARS-CoV-2 infection with a false negative preoperative test was 0.07% (around 1 in 1,400). The risk of a patient with an undetected infection being admitted for surgery and subsequently dying from the coronavirus disease 2019 (COVID-19) is estimated at approximately 1 in 7,000. However, if an estimate of the current global infection fatality rate (1.04%) is applied, the risk of death would be around 1 in 140,000, at most. This calculation does not take into account the risk of nosocomial infection. Conversely, it does not factor in that patients will also be clinically assessed and asked to self-isolate prior to surgery.

conclusionOur estimation suggests that the risk of patients being inadvertently admitted with an undetected SARS-CoV-2 infection for elective orthopaedic surgery is relatively low. Accordingly, the risk of death following elective orthopaedic surgery is low, even when applying the worst-case fatality rate. Cite this article:

Indexed as

Asymptomatic DiseasesCause of DeathBayes TheoremClinical Laboratory TechniquesCohort StudiesCoronavirus InfectionsCOVID-19COVID-19 TestingElective Surgical ProceduresFalse Negative ReactionsFemaleHumansIncidenceMalePandemicsPneumonia, ViralCFRCOVID-19Elective orthopaedicsMortalityPretest probabilityriskSARS-CoV-2SensitivitySpecificity

Identifiers

PMID32627569
OpenAlexW3038757509

What OpenQuestion holds

Textmetadata
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.