Evidence map›Paper›PMID 38233773›Full record

SynthesisBMC pregnancy and childbirth2024

Low-molecular-weight heparin for the prevention of preeclampsia in high-risk pregnancies without thrombophilia: a systematic review and meta-analysis.

Jiahui Chen, Jing Huai, Huixia Yang

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC pregnancy and childbirth, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
9.3field-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

16 citing papers in PubMed, 16 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Jiahui ChenDepartment of Obstetrics and Gynecology, Peking University First Hospital, No. 1 Xi 'an Men Street, Xicheng District, Beijing, 100034, China.
Jing HuaiDepartment of Obstetrics and Gynecology, Peking University First Hospital, No. 1 Xi 'an Men Street, Xicheng District, Beijing, 100034, China.
Huixia YangDepartment of Obstetrics and Gynecology, Peking University First Hospital, No. 1 Xi 'an Men Street, Xicheng District, Beijing, 100034, China. yhxktz2018@163.com.
Peking University · CN

Funding

National Key Research and Development Program of China No. 2021YFC2700700
6 · The paper itself

Abstract

objectivesTo systematically evaluate the efficacy of low molecular weight heparin (LMWH) to prevent preeclampsia in high risk pregnant women without thrombophilia. SEARCH STRATEGY: PubMed, Embase and the Cochrane library were searched for articles published before 1st August 2022 using the combination keywords "preeclampsia", "Low Molecular Weight Heparin", "LMWH", "Heparin, Low Molecular Weight", "Dalteparin", "Nadroparin", and "Tinzaparin". SELECTION CRITERIA: Randomized controlled trials evaluating the use of LMWH in pregnant women at high risk of preeclampsia without thrombophilia. DATA COLLECTION AND ANALYSIS: Ten studies were included in the meta-analysis (1758 patients in total). Outcomes were expressed as relative risk (RR) with 95% confidence intervals (CI).

resultsLMWH reduced the incidence of PE (RR = 0.67; 95% CI = 0.50-0.90; P = 0.009) in high risk pregnant women without thrombophilia. Subgroup analysis found that the prophylactic effect of LMWH was only significant in studies using low-dose aspirin (LDA) as the primary intervention. The combination of LMWH and LDA was also effective for the prevention of preterm birth and fetal growth restriction, but had no effect on the incidence of placenta abruption.

conclusionFor women at high risk of developing preeclampsia without thrombophilia, the combination of LMWH and low-dose aspirin is effective for the prevention of preeclampsia, preterm birth and fetal growth restriction and is superior to LDA alone.

Indexed as

Pre-EclampsiaPremature BirthThrombophiliaAnticoagulantsAspirinFemaleFetal Growth RetardationHeparinHeparin, Low-Molecular-WeightHumansInfant, NewbornNadroparinPregnancyPregnancy, High-RiskAnticoagulantsAspirinHeparinHeparin, Low-Molecular-WeightNadroparinLow-dose aspirinLow molecular weight heparinPreeclampsiaThrombophilia

Identifiers

PMID38233773
PMCPMC10792962
OpenAlexW4390949938

What OpenQuestion holds

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LicenceCC BY
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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.