Evidence map›Paper›PMID 33503547›Full record

ArticleThrombosis research2021

Systemic thrombosis in a large cohort of COVID-19 patients despite thromboprophylaxis: A retrospective study.

Nuria Muñoz-Rivas, Ane Abad-Motos, Beatriz Mestre-Gómez, Fernando Sierra-Hidalgo, Cristina Cortina-Camarero, Rosa María Lorente-Ramos, Pedro Torres-Rubio, Paz Arranz-García, Ana Isabel Franco-Moreno, Eloy Gómez-Mariscal and 12 more

Open access · bronzeAbstract read
In one paragraph

Article in Thrombosis research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Review
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  6. Article
  7. Review
  8. Lung T cell response in COVID-19.Frontiers in immunology · 2023
    Review
  9. Article
  10. Review
  11. Acro-ischemic lesions in COVID-19 patients: A case series.Journal of cosmetic dermatology · 2022
    Article
  12. Major coagulation disorders and parameters in COVID-19 patients.European journal of medical research · 2022
    Review
  13. Review
  14. Article
  15. Article
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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

22 authors at 1 institution in 1 country.

Nuria Muñoz-RivasInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Ane Abad-MotosAnesthesiology Department, Infanta Leonor University Hospital, Spain.
Beatriz Mestre-GómezInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Fernando Sierra-HidalgoNeurology Department, Infanta Leonor University Hospital, Spain.
Cristina Cortina-CamareroCardiology Department, Infanta Leonor University Hospital, Spain.
Rosa María Lorente-RamosRadiology Department, Infanta Leonor University Hospital, Spain.
Pedro Torres-RubioRadiology Department, Infanta Leonor University Hospital, Spain.
Paz Arranz-GarcíaAdministration Department, Infanta Leonor University Hospital, Spain.
Ana Isabel Franco-MorenoInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Eloy Gómez-MariscalCardiology Department, Infanta Leonor University Hospital, Spain.
Cristina Mauleón-FernándezDermatology Department, Infanta Leonor University Hospital, Spain.
Soledad Alonso-GarcíaPathology Department, Infanta Leonor University Hospital, Spain.
Jacobo RogadoMedical Oncology Department, Infanta Leonor University Hospital, Spain.
Teresa Saez-VaqueroInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Ana Such-DiazDepartment of Hospital Pharmacy, Infanta Leonor University Hospital, Spain.
Pablo RyanInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Eva Moya-MateoInternal Medicine Department, Infanta Leonor University Hospital, Spain.
Juan A Martín-NavarroNephrology Department, Infanta Leonor University Hospital, Spain.
Jose Angel Hernández-RivasHematology and Haemostasis Department, Infanta Leonor University Hospital, Spain; Universidad Complutense de Madrid, Spain.
Juan Torres-MachoInternal Medicine Department, Infanta Leonor University Hospital, Spain; Universidad Complutense de Madrid, Spain.
Juan ChurrucaHematology and Haemostasis Department, Infanta Leonor University Hospital, Spain. Electronic address: juan.churruca@salud.madrid.org.
Infanta Leonor Thrombosis Research Group
Hospital Universitario Infanta Leonor · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIncidence of thrombotic events associated to Coronavirus disease-2019 (COVID-19) is difficult to assess and reported rates differ significantly. Optimal thromboprophylaxis is unclear.

objectivesWe aimed to analyze the characteristics of patients with a confirmed thrombotic complication including inflammatory and hemostatic parameters, compare patients affected by arterial vs venous events and examine differences between survivors and non-survivors. We reviewed compliance with thromboprophylaxis and explored how the implementation of a severity-adjusted protocol could have influenced outcome.

methodsSingle-cohort retrospective study of COVID-19 patients admitted, from March 3 to May 3 2020, to the Infanta Leonor University Hospital in Madrid, epicenter of the Spanish outbreak.

resultsAmong 1127 patients, 80 thrombotic events were diagnosed in 69 patients (6.1% of the entire cohort). Forty-three patients (62%) suffered venous thromboembolism, 18 (26%) arterial episodes and 6 (9%) concurrent venous and arterial thrombosis. Most patients (90%) with a confirmed thrombotic complication where under low-molecular-weight heparin treatment. Overt disseminated intravascular coagulation (DIC) was rare. Initial ISTH DIC score and pre-event CRP were significantly higher among non-survivors. In multivariate analysis, arterial localization was an independent predictor of mortality (OR = 18, 95% CI: 2.4-142, p < .05).

conclusionsDespite quasi-universal thromboprophylaxis, COVID-19 lead to a myriad of arterial and venous thrombotic events. Considering the subgroup of patients with thrombotic episodes, arterial events appeared earlier in the course of disease and conferred very poor prognosis, and an ISTH DIC score ≥ 3 at presentation was identified as a potential predictor of mortality. Severity-adjusted thromboprophylaxis seemed to decrease the number of events and could have influenced mortality. Randomized controlled trials are eagerly awaited.

Indexed as

AgedAged, 80 and overAnticoagulantsCOVID-19Disseminated Intravascular CoagulationFemaleHeparin, Low-Molecular-WeightHumansMaleMiddle AgedRetrospective StudiesSARS-CoV-2ThrombophiliaThrombosisVenous ThromboembolismAnticoagulantsHeparin, Low-Molecular-WeightCoronavirus infectionsDisseminated intravascular coagulationHeparin, low-molecular-weightThrombophiliaThrombosis

Identifiers

PMID33503547
PMCPMC7787910
OpenAlexW3118886549

What OpenQuestion holds

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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.