Evidence map›Paper›PMID 34581945›Full record

ArticleJournal of thrombosis and thrombolysis2022

Global haemostatic tests demonstrate the absence of parameters of hypercoagulability in non-hypoxic mild COVID-19 patients: a prospective matched study.

Bingwen Eugene Fan, Kollengode Ramanathan, Christina Lai Lin Sum, Dheepa Christopher, Stephrene Seok Wei Chan, Gek Hsiang Lim, Chwee Fang Bok, Shiun Woei Wong, David Chien Lye, Barnaby Edward Young and 9 more

Abstract read
In one paragraph

Article in Journal of thrombosis and thrombolysis, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Dysregulation of Protein S in COVID-19.Best practice & research. Clinical haematology · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Usefulness of Clot Waveform Analysis-Activated Thromboplastin Time (APTT) for Diagnosing Thrombotic Diseases.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Article
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

19 authors.

Bingwen Eugene FanDepartment of Haematology, Tan Tock Seng Hospital, Singapore, Singapore. Bingwen_Eugene_Fan@ttsh.com.sg.ORCID http://orcid.org/0000-0003-4367-5182
Kollengode RamanathanYong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
Christina Lai Lin SumDepartment of Laboratory Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Dheepa ChristopherDepartment of Haematology, Tan Tock Seng Hospital, Singapore, Singapore.
Stephrene Seok Wei ChanDepartment of Haematology, Tan Tock Seng Hospital, Singapore, Singapore.
Gek Hsiang LimClinical Research and Innovation Office, Tan Tock Seng Hospital, Singapore, Singapore.
Chwee Fang BokDepartment of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore.
Shiun Woei WongLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
David Chien LyeLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Barnaby Edward YoungLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Jia Yan LimLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Rui Min LeeLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Shu Ping LimDepartment of Laboratory Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Hwee Tat TanDepartment of Laboratory Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Mui Kia AngDepartment of Laboratory Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Soon Lee LauDepartment of Laboratory Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Ponnudurai KuperanDepartment of Haematology, Tan Tock Seng Hospital, Singapore, Singapore.
Kiat Hoe OngDepartment of Haematology, Tan Tock Seng Hospital, Singapore, Singapore.
Yew Woon ChiaLee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.

Funding

national healthcare group COVID19 CG0004
6 · The paper itself

Abstract

Severe COVID-19 patients demonstrate hypercoagulability, necessitating thromboprophylaxis. However, less is known about the haemostatic profile in mild COVID-19 patients. We performed an age and gender-matched prospective study of 10 severe and 10 mild COVID-19 patients. Comprehensive coagulation profiling together with Thromboelastography and Clot Waveform Analysis were performed. FBC, PT, APTT, D-dimer, fibrinogen and CWA were repeated every 3 days for both groups and repeat TEG was performed for severe patients up till 15 days. On recruitment, severe patients had markers reflecting hypercoagulability including raised median D-dimer 1.0 μg/mL (IQR 0.6, 1.4) (p = 0.0004), fibrinogen 5.6 g/L (IQR 4.9, 6.6) (p = 0.002), Factor VIII 206% (IQR 171, 203) and vWF levels 265.5% (IQR 206, 321). Mild patients had normal values of PT, aPTT, fibrinogen and D-dimer, and slightly elevated median Factor VIII and von Willebrand factor (vWF) levels. Repeated 3-day assessments for both groups showed declining trends in D-dimer and Fibrinogen. CWA of severe COVID-19 group demonstrated hypercoagulability with an elevated median values of aPTT delta change 78.8% (IQR 69.8, 85.2) (p = 0.001), aPTT clot velocity (min1) 7.8%/s (IQR 6.7, 8.3) (p = 0.001), PT delta change 22.4% (IQR 19.4, 29.5) (p = 0.004), PT min1 7.1%/s (IQR 6.3, 9.0) (p = 0.02), PT clot acceleration (min 2) 3.6%/s

Indexed as

COVID-19HemostaticsThrombophiliaThrombosisVenous ThromboembolismAnticoagulantsFactor VIIIFibrinogenHumansProspective StudiesThrombelastographyvon Willebrand FactorAnticoagulantsFactor VIIIFibrinogenHemostaticsvon Willebrand FactorCOVID-19HypercoagulabilitySARS-CoV-2ThrombelastographyVenous thromboembolism

Identifiers

PMID34581945
PMCPMC8476716

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.