Evidence map›Paper›PMID 41559578›Full record

SynthesisBMC pregnancy and childbirth2026

Inconsistencies in recommendations for the preventive management of pre-eclampsia and quality assessment of international guidelines: a systematic review.

Sha Diao, Yuan Feng, Nan Yang, Panda Qiu, Puwen Zhang, Hailong Li, Dan Liu, Linan Zeng, Rong Zhou, Lingli Zhang

Abstract readSystematic Review
In one paragraph

Synthesis in BMC pregnancy and childbirth, 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. Observational
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

10 authors.

Sha DiaoDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Yuan FengWest China School of Pharmacy, Sichuan University, Chengdu, China.
Nan YangDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Panda QiuDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Puwen ZhangDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Hailong LiDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Dan LiuDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Linan ZengDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China.
Rong ZhouKey Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, China. zhourong_hx@scu.edu.cn.
Lingli ZhangDepartment of Pharmacy/Evidence-Based Pharmacy Center, West China Second University Hospital, Sichuan University, Chengdu, China. zhanglingli@scu.edu.cn.

Funding

Natural Science Foundation of Sichuan Province 2022NSFSC0644
6 · The paper itself

Abstract

backgroundRecommendations for the preventive management of pre-eclampsia remain inconsistent across existing guidelines, which may adversely affect clinical decision-making. It is crucial to summarize and compare the existing guidelines to identify inconsistencies and guide future research.

methodsWe conducted a systematic review and quality assessment of clinical guidelines for the preventive management of pre-eclampsia. Six literature databases and 19 guideline databases or official websites were searched from their inception to May 31, 2024. Two reviewers initially screened the retrieved articles. Data extraction was performed by one reviewer and verified by another. Five reviewers appraised the quality using the AGREE II instrument. Basic characteristics of the guidelines were described as frequency and proportion. A qualitative analysis was performed to compare inconsistencies in the recommendations. The intraclass correlation coefficient (ICC) was calculated to evaluate the consistency of item scores in the AGREE II tool among reviewers. The standardized domain scores for all guidelines were expressed as median and interquartile range (IQR). The Heat maps and Sankey diagrams were generated to visualize variations.

resultsA total of 32 guidelines published between 2004 and 2024 were included. Recommendations for risk factors exhibited marked variations, with only 8 (27%) guidelines integrating all three categories (maternal, biochemical, imaging-defined). Most guidelines (12 of 14) recommended qualitative methods to classify patients into low-, moderate-, or high-risk categories. The Fetal Medicine Foundation (FMF) algorithm was the only quantitative model endorsed for prediction. Aspirin was universally recommended for high-risk women, but with wide variations in dose and timing. The highest recommended dose was more than three times the lowest dose. The most frequently recommended initiation time was before 16 weeks’ gestation, with cessation at 36 weeks’ gestation the most common. Guideline quality was generally high (87.5% rated excellent overall), but the “Rigour of Development” domain scored lowest (median 43.8%), revealing key methodological shortcomings in updating procedures.

conclusionsSubstantial inconsistencies persist in recommendations for the preventive management of pre-eclampsia across existing guidelines, highlighting the need for further research. Moreover, the methodological rigor of guideline development requires enhancement to ensure more reliable clinical advice.

trial registrationID CRD42024557782

Indexed as

Practice Guidelines as TopicPre-EclampsiaFemaleHumansPregnancyRisk FactorsAGREE IIAspirinPre-eclampsiaRisk predictionSystematic review

Identifiers

PMID41559578
PMCPMC12964843

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.