Evidence map›Paper›PMID 33351117›Full record

ArticleBlood advances2020

Incidence of symptomatic, image-confirmed venous thromboembolism following hospitalization for COVID-19 with 90-day follow-up.

Richard Salisbury, Valentina Iotchkova, Sarah Jaafar, Joshua Morton, Gavinda Sangha, Akshay Shah, Paraskevi Untiveros, Nicola Curry, Susan Shapiro

Open access · goldAbstract read
In one paragraph

Article in Blood advances, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 4 pooled it
8.6field-weighted citation impact, top 1% 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

42 citing papers in PubMed, 4 syntheses or guidelines pooled it, 82 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Thrombotic and Hemorrhagic Incidences in Patients After Discharge from COVID-19 Infection: A Systematic Review and Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  5. Article
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  7. Observational
  8. Review
  9. Review
  10. Review
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  12. Article
  13. A systematic review on post-discharge venous thromboembolism prophylaxis in patients with COVID-19.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2023
    Review
  14. Article
  15. Post-COVID-19 Syndrome Mechanisms, Prevention and Management.International journal of preventive medicine · 2023
    Review
  16. Review
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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 2 institutions in 1 country.

Richard SalisburyOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Valentina IotchkovaWeatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.
Sarah JaafarOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Joshua MortonOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Gavinda SanghaOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Akshay ShahOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Paraskevi UntiverosOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Nicola CurryOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
Susan ShapiroOxford University Hospitals National Health Service Foundation Trust, Oxford, United Kingdom.
National Health Service · GBUniversity of Oxford · GB

Funding

Medical Research Council MR/T023961/1Medical Research Council MR/T024054/1
6 · The paper itself

Abstract

Although COVID-19 has been reported to be associated with high rates of venous thromboembolism (VTE), the risk of VTE and bleeding after hospitalization for COVID-19 remains unclear, and the optimal hospital VTE prevention strategy is not known. We collected retrospective observational data on thrombosis and bleeding in 303 consecutive adult patients admitted to the hospital for at least 24 hours for COVID-19. Patients presenting with VTE on admission were excluded. Data were collected until 90 days after admission or known death by using medical records and an established national VTE network. Maximal level of care was ward based in 78% of patients, with 22% requiring higher dependency care (12% noninvasive ventilation, 10% invasive ventilation). Almost all patients (97.0%) received standard thromboprophylaxis or were already receiving therapeutic anticoagulation (17.5%). Symptomatic image-confirmed VTE occurred in 5.9% of patients during index hospitalization, and in 7.2% at 90 days after admission (23.9% in patients requiring higher dependency care); half the events were isolated segmental or subsegmental defects on lung imaging. Bleeding occurred in 13 patients (4.3%) during index hospitalization (1.3% had major bleeding). The majority of bleeds occurred in patients on the general ward, and 6 patients were receiving treatment-dose anticoagulation, highlighting the need for caution in intensifying standard thromboprophylaxis strategies. Of 152 patients discharged from the hospital without an indication for anticoagulation, 97% did not receive thromboprophylaxis after discharge, and 3% received 7 days of treatment with low molecular weight heparin after discharge. The rate of symptomatic VTE in this group at 42 days after discharge was 2.6%, highlighting the need for large prospective randomized controlled trials of extended thromboprophylaxis after discharge in COVID-19.

Indexed as

AgedAged, 80 and overBiomarkersBlood Coagulation TestsCOVID-19Diagnostic ImagingDisease ManagementDisease SusceptibilityEnglandFemaleFollow-Up StudiesHospitalizationHumansIncidenceMaleMiddle AgedBiomarkers

Identifiers

PMID33351117
PMCPMC7757009
OpenAlexW3110955805

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.