Evidence map›Paper›PMID 32045437›Full record

SynthesisPloS one2020

Diagnostic accuracy of three ultrasonography strategies for deep vein thrombosis of the lower extremity: A systematic review and meta-analysis.

Noémie Kraaijpoel, Marc Carrier, Grégoire Le Gal, Matthew D F McInnes, Jean-Paul Salameh, Trevor A McGrath, Nick van Es, David Moher, Harry R Büller, Patrick M Bossuyt and 1 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 6% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Noémie KraaijpoelDepartment of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.ORCID 0000-0002-1124-695X
Marc CarrierDepartment of Medicine, Division of Hematology, The Ottawa Hospital, Ottawa, ON, Canada.
Grégoire Le GalDepartment of Medicine, Division of Hematology, The Ottawa Hospital, Ottawa, ON, Canada.
Matthew D F McInnesClinical Epidemiology Program, Ottawa Hospital Research Institute, The Ottawa Hospital, ON, Canada.
Jean-Paul SalamehClinical Epidemiology Program, Ottawa Hospital Research Institute, The Ottawa Hospital, ON, Canada.
Trevor A McGrathDepartment of Radiology, University of Ottawa, Ottawa, ON, Canada.
Nick van EsDepartment of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
David MoherClinical Epidemiology Program, Ottawa Hospital Research Institute, The Ottawa Hospital, ON, Canada.
Harry R BüllerDepartment of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands.
Patrick M BossuytDepartment of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0003-4427-0128
Mariska M G LeeflangDepartment of Clinical Epidemiology, Biostatistics, and Bioinformatics, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0001-5960-0471
Amsterdam University Medical Centers · NLUniversity of Ottawa · CAOttawa Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCompression ultrasonography (CUS) is the first-line imaging test in the diagnostic management of suspected deep vein thrombosis (DVT) of the lower extremity. Three CUS strategies are used in clinical practice. However, their relative diagnostic accuracy is uncertain.

objectivesThis systematic review and meta-analysis aimed to summarize and compare the diagnostic accuracy of single limited, serial limited, and whole-leg CUS for DVT.

methodsMEDLINE, Embase, and CENTRAL were searched from January 1st, 1989 to July 23rd, 2019 for studies assessing at least one of the CUS strategies in adults with suspected DVT of the lower extremity, using clinical follow-up for venous thromboembolism or contrast venography as the reference standard. Study selection, data extraction, and risk of bias assessment were performed in duplicate by independent authors. A bivariate random-effects model was used to compute diagnostic accuracy summary estimates.

resultsForty studies (n = 21,250) were included. The venous thromboembolic event rate after a negative CUS (failure rate) of single limited (1.4%; 95% CI, 0.83-2.5), serial limited (1.9%; 95% CI, 1.4-2.5), and whole-leg CUS (1.0%; 95% CI, 0.6-1.6) did not differ significantly. The proportion of positive results was lower with single limited CUS, as was DVT prevalence in this group.

conclusionsThe failure rates of single limited, serial limited, and whole-leg CUS for DVT appeared to be quite comparable. The relative failure rate of single limited CUS remains uncertain, as the DVT prevalence was lower in these studies. Therefore, this CUS strategy may only be safe in a selected group of low-risk patients. Preference for one of the strategies may be based on pretest probability assessment, feasibility, expertise, and perceived clinical relevance of isolated distal DVT.

Indexed as

Databases, FactualDiagnostic ErrorsHumansLower ExtremityUltrasonographyVenous Thrombosis

Identifiers

PMID32045437
PMCPMC7012434
OpenAlexW3005932037

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.