Evidence map›Paper›PMID 34650862›Full record

ArticleCureus2021

Combined Use of Wells Scores and D-dimer Levels for the Diagnosis of Deep Vein Thrombosis and Pulmonary Embolism in COVID-19: A Retrospective Cohort Study.

Kavin Raj, Sanya Chandna, Sotirios G Doukas, Abi Watts, Keerthana Jyotheeswara Pillai, Anil Anandam, Dhruv Singh, Randy Nagarakanti, Kesavan Sankaramangalam

Open access · diamondAbstract read
In one paragraph

Article in Cureus, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Deep Vein Thrombosis in Critically Ill Patients With COVID-19 Pneumonia: Incidence, Wells Score Diagnostic Performance, and Hospital Prognosis.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2026
    Observational
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. D-dimer Thresholds to Exclude Pulmonary Embolism among COVID-19 Patients in the Emergency Department: Derivation with Independent Validation.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
  11. Interpretable Machine Learning Approach for Predicting 30-Day Mortality of Critical Ill Patients with Pulmonary Embolism and Heart Failure: A Retrospective Study.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
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

9 authors at 3 institutions in 1 country.

Kavin RajInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Sanya ChandnaInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Sotirios G DoukasInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Abi WattsInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Keerthana Jyotheeswara PillaiEndocrinology and Diabetes, Saint Peter's University Hospital, New Brunswick, USA.
Anil AnandamInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Dhruv SinghInternal Medicine, Saint Peter's University Hospital, New Brunswick, USA.
Randy NagarakantiElectrophysiology, Robert Wood Johnson University Hospital, New Brunswick, USA.
Kesavan SankaramangalamCardiology, West Virginia University, Morgantown, USA.
Robert Wood Johnson University Hospital · USSaint Peter's University Hospital · USWest Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction Deep vein thrombosis (DVT) and pulmonary embolism (PE) are key complications of coronavirus disease 2019 (COVID-19). The study's primary outcome was assessing the utility of Wells DVT, Wells PE scores, and D-dimers in diagnosing DVT and PE. Secondary outcomes were the risk factors for the development of PE and DVT in COVID-19 patients. Materials and methods We compared COVID-19 patients with a positive and negative lower extremity (LE) duplex. A similar approach was made for patients who underwent imaging for PE. Results The prevalence of PE was 23.8% (26 out of 109 patients), and the prevalence of DVT was 33% (35 out of 106). A D-dimer of 500 ng/mL had a sensitivity of 95.6% and 93.7% for the diagnosis of PE and DVT, respectively. A Wells DVT score of 3 points had a specificity of 92.9% and sensitivity of 8.8% for DVT diagnosis in COVID-19. A Wells PE score of 4 had a specificity of 100% and a sensitivity of 20% for the diagnosis of PE. The combined approach of using a Wells DVT score of 3 in suspected DVT and a Wells PE score of 4 in suspected PE and D-dimers of 500 ng/ml has a sensitivity of 94.2% and 96.1%, respectively. In the suspected DVT group, male gender (OR 3.88, 95% CI 1.55-9.7, P=0.004), lower body mass index (BMI) (OR 0.92, 95% CI 0.86-0.99, P=0.037), antiplatelet use (OR 0.19, 95% CI 0.04-0.88, P=0.035), systolic blood pressure

Indexed as

covid-19d-dimersdeep vein thrombosispulmonary embolismwells dvt scorewells pe score

Identifiers

PMID34650862
PMCPMC8487632
OpenAlexW3197311126

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.