Evidence map›Paper›PMID 34184588›Full record

SynthesisAnnals of medicine2021

Venous thrombotic events in psoriasis patients: a systematic review with meta-analysis.

Tom Hillary, Jolien Clijmans, Séverine Vermeire, Jo Lambert, Marjan Garmyn, Maya Imbrechts, Thomas Vanassche

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Annals of medicine, 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
–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

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

  1. Pooled it
  2. Trial
  3. Article
  4. Observational
  5. Bridging worlds: a narrative review of IL-17 at the crossroads of inflammation and thrombosis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
  6. Article
  7. Article
  8. SIRT1 and thrombosis.Frontiers in molecular biosciences · 2023
    Review
  9. Article
  10. Article
  11. 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

7 authors.

Tom HillaryDepartment of Dermatology, University Hospitals Leuven, Leuven, Belgium.ORCID 0000-0002-4497-8487
Jolien ClijmansKatholieke Universiteit Leuven, Leuven, Belgium.
Séverine VermeireDepartment of Gastroenterology and Hepatology, University Hospitals Leuven and Translational Research in Gastrointestinal Disorders (TARGID) KU Leuven, Leuven, Belgium.ORCID 0000-0001-9942-3019
Jo LambertDepartment of Dermatology, Ghent University Hospital, Ghent, Belgium.
Marjan GarmynDepartment of Dermatology, University Hospitals Leuven, Leuven, Belgium.
Maya ImbrechtsDepartment of Pharmaceutical and Pharmacological Sciences, Laboratory for Therapeutic and Diagnostic Antibodies, KU Leuven, Leuven, Belgium.
Thomas VanasscheDepartment of Cardiovascular Diseases, University Hospitals Leuven, Leuven, Belgium.ORCID 0000-0002-7404-8918

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPsoriasis is a chronic inflammatory skin disease associated with numerous comorbidities. Psoriasis has been linked to an increased risk of metabolic syndrome and atherosclerotic arterial disease. Inflammatory conditions are known to increase the risk of venous thromboembolism (VTE), a frequent cause of morbidity and mortality. However, the relationship between psoriasis and VTE has received little attention and existing studies have shown conflicting results.

objectivesThis systematic review aims to perform a meta-analysis on VTE in psoriasis patients.

methodsWe conducted a systematic electronic search of the incidence of VTE (pulmonary embolism [PE], deep venous thrombosis [DVT] and/or retinal vein occlusion [RVO]) in psoriasis patients on PubMed, Web of Science, Embase and Cochrane (specifics: see Appendix 1 in Supporting information). Only English literature and full manuscripts were included; abstracts were excluded. Pooled risk ratio and 95% confidence interval were calculated using Review Manager.

resultsSeven articles were included. Each study separately indicated a correlation between psoriasis and VTE after adjustment for several clinical parameters. The confounders included in the adjustment differed between studies, but all included adjustment for age, gender and comorbidities. A meta-analysis of the unadjusted data of the five studies that reported raw data on number of VTE events and patient follow-up (person-years) showed a pooled risk ratio for VTE and psoriasis of 1.29 (95% CI: 0.92-1.81). The statistical heterogeneity was high with

conclusionsPublished data adjusted for key confounders demonstrate in general a significantly increased prevalence of VTE in psoriasis patients. Both psoriasis severity and number of confounders assessed seem to have an impact on this correlation. In this review, we pooled unadjusted data of the studies and we found a non-significant increased risk for VTE in psoriasis patients compared to healthy controls. This discrepancy suggests that psoriasis severity, age, gender or comorbidities may influence the risk of VTE in subgroups of the psoriasis population. Future research to identify subgroups at risk for VTE is warranted.Key messagesThe included studies reported an increased risk of VTE, DVT, PE and RVO in psoriasis patients.A meta-analysis was performed on five studies that reported raw data and showed that the pooled risk ratio for VTE in psoriasis patients overall was increased, however not significantly, compared to healthy controls.Further research to pinpoint psoriasis subgroups at risk (e.g. severe psoriasis patients, younger age, associated comorbidities) of developing VTE is warranted.

Indexed as

HumansPsoriasisPulmonary EmbolismThrombosisVenous ThromboembolismVenous Thrombosiscomorbiditiesdeep venous thrombosisPsoriasispulmonary embolismretinal vein occlusionvenous thromboembolism

Identifiers

PMID34184588
PMCPMC8245067

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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.