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Record W7116630565 · doi:10.1080/24734306.2025.2600261

Intentional use of ertapenem to reduce valproic acid concentrations in overdose: two case reports

2025· article· en· W7116630565 on OpenAlexaff
Lyndon Rebello, Anna Maruyama, Daniel Ovakim

Bibliographic record

VenueToxicology Communications · 2025
Typearticle
Languageen
FieldMedicine
TopicPharmacological Effects and Toxicity Studies
Canadian institutionsIsland HealthUniversity of British Columbia
Fundersnot available
KeywordsValproic AcidErtapenemClofibric acidAmmoniaAnticonvulsantBipolar disorderMood stabilizer

Abstract

fetched live from OpenAlex

Introduction Valproic acid (VPA) is used for the treatment of seizures and other conditions. Overdose present as central nervous system and respiratory depression, metabolic acidosis, and hyperammonemia. Management is mainly supportive, including activated charcoal, L-carnitine, and hemodialysis. Multiple reports have demonstrated reductions in therapeutic VPA concentrations with carbapenems.Case report 1 A 23-year-old male with bipolar disorder ingested 40 g of VPA. The initial VPA and ammonia concentrations were 300 µg/L and 192 µg/dL, respectively. The peak VPA and ammonia concentrations reached 894 µg/L and 740 µg/dL, respectively. He received multi-dose activated charcoal, L-carnitine, and ertapenem, followed by continuous renal replacement therapy (CRRT). His concentrations decreased rapidly, and he was extubated.Case report 2 A 33-year-old male ingested 10 g of VPA, multiple psychotropics, and alcohol. He had a GCS of 10, hypoxemia, and initial VPA and ammonia of 45 µg/L and 139 µg/dL, respectively. The peak VPA and ammonia were 317 µg/L and 255 µg/L, respectively. He received L-carnitine and ertapenem, with a subsequent decline in concentrations.Discussion Carbapenems may reduce VPA concentrations by 50%–80%. Our cases demonstrate the successful use of ertapenem in the management of severe VPA toxicity. Further studies may establish criteria for the use of carbapenems for treating VPA poisoning and whether they can reduce the need for hemodialysis.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.005
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Case report · Consensus signal: Case report
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.011
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.005
Meta-epidemiology (narrow)0.0050.002
Meta-epidemiology (broad)0.0020.003
Bibliometrics0.0050.003
Science and technology studies0.0040.003
Scholarly communication0.0040.005
Open science0.0020.003
Research integrity0.0110.007
Insufficient payload (model declined to judge)0.0020.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.093
GPT teacher head0.428
Teacher spread0.336 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designCase report
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2025
Admission routes1
Has abstractyes

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