Evidence map›Paper›PMID 41176031›Full record

ArticleAmerican journal of obstetrics & gynecology MFM2026

12 versus 24 hours of postpartum magnesium sulfate for seizure prophylaxis: A cost-effectiveness analysis.

Andre A Robinson, Olivia Curl, Ava Mandelbaum, Uma Doshi, Aaron B Caughey, Christina A Penfield

Abstract readComparative Study
In one paragraph

Article in American journal of obstetrics & gynecology MFM, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Obstetric pharmacoeconomics.Expert review of pharmacoeconomics & outcomes research · 2026
    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.

Andre A RobinsonDepartment of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, NYU Grossman School of Medicine, New York City, NY (Robinson). Electronic address: AndreRobinsonMD@gmail.com.
Olivia CurlOregon Health & Science University, Portland, OR (Curl, Mandelbaum, and Doshi).
Ava MandelbaumOregon Health & Science University, Portland, OR (Curl, Mandelbaum, and Doshi).
Uma DoshiOregon Health & Science University, Portland, OR (Curl, Mandelbaum, and Doshi).
Aaron B CaugheyDepartment of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Oregon Health & Science University, Portland, OR (Caughey).
Christina A PenfieldDepartment of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, NYU Langone Health, New York, NY (Penfield).

Funding

Optimizing decision-making to improve maternal outcomes in high-risk pregnant patients with hypertensive disorders - Resubmission - 1K08HD111687 · NICHD · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Christina Penfield · 2024 to 2026
$504k
NICHD NIH HHS K08 HD111687
6 · The paper itself

Abstract

backgroundThe approach to prevent eclampsia in the postpartum period utilizes magnesium sulfate but there is no evidence-based standard to guide duration.

objectivesTo assess the cost-effectiveness of an abbreviated 12-hour postpartum magnesium sulfate regimen compared with a standard 24-hour regimen. STUDY

designA decision-analytic model was constructed to compare a 12-hour regimen with a 24-hour regimen in a theoretical cohort of 45,800 patients with preeclampsia with severe features. Probabilities, costs, and utilities were derived from the literature. Primary outcomes included incremental cost per quality-adjusted life-year (QALY), cases of eclampsia, magnesium toxicity, and maternal death. The cost-effectiveness threshold was $100,000 per QALY.

resultsA 12-hour regimen in this theoretical cohort of 45,800 postpartum patients compared with a 24-hour regimen resulted in 86 more cases of eclampsia (398 vs 312) and 0.37 more deaths (10.87 vs 10.50). However, there were 656 fewer cases of magnesium toxicity (2089 vs 2745). Overall, a 12-hour regimen was a dominant strategy that resulted in decreased costs of $21.5 million and increased effectiveness of 17 QALYs.

conclusionIn our study, an abbreviated duration of postpartum magnesium sulfate prophylaxis for patients with preeclampsia with severe features was a dominant strategy (lower costs, better outcomes) and cost-effective compared with the standard 24-hour regimen.

Indexed as

AnticonvulsantsEclampsiaMagnesium SulfatePre-EclampsiaSeizuresAdultCost-Benefit AnalysisCost-Effectiveness AnalysisDecision Support TechniquesDrug Administration ScheduleFemaleHumansPostpartum PeriodPregnancyQuality-Adjusted Life YearsAnticonvulsantsMagnesium Sulfatecost-effectiveeclampsiamagnesiumpostpartumpreeclampsiashorter duration

Identifiers

PMID41176031
PMCPMC13185326

What OpenQuestion holds

Textmetadata
LicenceTDM
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.