Evidence map›Paper›PMID 35759185›Full record

SynthesisInternal and emergency medicine2022

High-dose versus low-dose venous thromboprophylaxis in hospitalized patients with COVID-19: a systematic review and meta-analysis.

Emanuele Valeriani, Angelo Porfidia, Walter Ageno, Silvia Spoto, Roberto Pola, Marcello Di Nisio

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Internal and emergency medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
2.7field-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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Observational
  4. Article
  5. Observational
  6. Review
  7. Article
  8. Review
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

6 authors at 5 institutions in 1 country.

Emanuele Valeriani *Department of Public Health and Infectious Diseases, Azienda Ospedaliero-Universitaria Policlinico Umberto I, Rome, Italy. emanuele.valeriani@outlook.com.ORCID 0000-0001-9729-3214
Angelo Porfidia *Department of Medicine, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore School of Medicine, Rome, Italy.
Walter AgenoDepartment of Medicine and Surgery, University of Insubria, Varese, Italy.
Silvia SpotoDiagnostic and Therapeutic Medicine Department, University Campus Bio-Medico of Rome, Rome, Italy.
Roberto PolaDepartment of Medicine, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore School of Medicine, Rome, Italy.
Marcello Di NisioDepartment of Medicine and Ageing Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy.
Università Cattolica del Sacro Cuore · ITPoliclinico Umberto I · ITUniversità Campus Bio-Medico · ITUniversity of Chieti-Pescara · ITUniversity of Insubria · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHospitalized COVID-19 patients are at high risk of venous thromboembolism (VTE). Standard doses of anticoagulant prophylaxis may not be sufficiently effective for the prevention of VTE. The objective of this systematic-review and meta-analysis was to compare the efficacy and safety of high-dose versus low-dose thromboprophylaxis in hospitalized patients with COVID-19. MATERIAL AND

methodsMEDLINE and EMBASE were searched up to October 2021 for randomized clinical trials (RCTs) comparing high-dose with low-dose thromboprophylaxis in hospitalized adult patients with COVID-19. The primary efficacy outcome was the occurrence of VTE and the primary safety outcome was major bleeding.

resultsA total of 5470 patients from 9 RCTs were included. Four trials included critically ill patients, four non-critically ill patients, and one included both. VTE occurred in 2.9% of patients on high-dose and in 5.7% of patients on low-dose thromboprophylaxis (relative risk [RR] 0.53; 95% confidence intervals [CIs], 0.41-0.69; I DISCUSSION: In hospitalized patients with COVID-19, high-dose thromboprophylaxis is more effective than low-dose for the prevention of VTE but increases the risk of major bleeding.

Indexed as

COVID-19Venous ThromboembolismAdultAnticoagulantsHemorrhageHeparin, Low-Molecular-WeightHumansAnticoagulantsHeparin, Low-Molecular-WeightAnticoagulantsCOVID-19HeparinSARS-CoV2Venous thromboembolism

Identifiers

PMID35759185
PMCPMC9244067
OpenAlexW4283575793

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.