Evidence map›Paper›PMID 33801850›Full record

ArticleJournal of clinical medicine2021

Valproic Acid-Induced Liver Injury: A Case-Control Study from a Prospective Pharmacovigilance Program in a Tertiary Hospital.

Enrique S Meseguer, Mikel U Elizalde, Alberto M Borobia, Elena Ramírez

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 2% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
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  10. L-carnitine for valproic acid-induced toxicity.British journal of clinical pharmacology · 2025
    Review
  11. Drug-Induced Liver Injury-Pharmacological Spectrum Among Children.International journal of molecular sciences · 2025
    Review
  12. Review
  13. Advancements in Valproate Therapy for Seizures, Migraines, and Bipolar Disorders.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2025
    Review
  14. Article
  15. Review
  16. Review
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  19. Valproic acid for children below 2 years of age with epilepsy.Neurosciences (Riyadh, Saudi Arabia) · 2021
    Article
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

4 authors at 1 institution in 1 country.

Enrique S MeseguerDepartment of Clinical Pharmacology, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, 28046 Madrid, Spain.
Mikel U ElizaldeDepartment of Clinical Pharmacology, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, 28046 Madrid, Spain.
Alberto M BorobiaDepartment of Clinical Pharmacology, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, 28046 Madrid, Spain.ORCID 0000-0002-8584-3263
Elena RamírezDepartment of Clinical Pharmacology, La Paz University Hospital-IdiPAZ, Autonomous University of Madrid, 28046 Madrid, Spain.ORCID 0000-0002-4052-8876
Hospital Universitario La Paz · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionValproic acid (VPA) is an antiepileptic drug extensively used for treating partial and generalised seizures, acute mania and as prophylaxis for bipolar disorder. Drug-induced liver injury (DILI) persists as a significant issue related to fatal outcomes by VPA. The aim of this study was to increase our knowledge about this condition and to better identify patients affected.

methodsWe conducted an observational retrospective case-control study that identified cases of DILI by VPA from the Pharmacovigilance Programme from our Laboratory Signals at La Paz University Hospital from January 2007 to December 2019. From the Therapeutic VPA Monitoring program, two control groups were assigned, VPA-tolerant patients and the other with patients who developed mild VPA-related liver injury but who did not meet the DILI criteria, matched for date, age and sex.

resultsA total of 60 patients were included in the study: 15 cases of DILI, 30 VPA-tolerant controls and 15 controls with mild liver injury. Mean age for the cases was 45.7 years, 4 (26.7%) were women and 5 (33.34%) were children under 18 years, of them 3 (20%) were fatal. Polytherapy with other antiepileptic drugs (

conclusionsVPA hepatotoxicity remains a considerable problem. This study offers interesting findings for characterising VPA-induced liver injury and at-risk patients.

Indexed as

adverse drug reactioncase-control studydrug-induced liver injuryvalproic acid

Identifiers

PMID33801850
PMCPMC7999396
OpenAlexW3135472825

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.