Evidence map›Paper›PMID 42596977›Full record

ReviewPregnancy (Hoboken, N.J.)2025

Low-dose aspirin in unexplained recurrent pregnancy loss: A systematic review and meta-analysis.

Marianna Onori, Giuliana Beneduce, Matteo Figà, Fabio Sannino, Alessandro Petrecca, Tullio Ghi, Chiara Tersigni

Abstract readReview
In one paragraph

Review in Pregnancy (Hoboken, N.J.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Marianna OnoriFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Giuliana BeneduceFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Matteo FigàFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Fabio SanninoFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Alessandro PetreccaFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Tullio GhiFacoltà di Medicina e Chirurgia Università Cattolica del Sacro Cuore Rome Italy.
Chiara TersigniUOC Ostetricia e Patologia Ostetrica, Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy.ORCID https://orcid.org/0000-0003-1590-3942

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Introduction: Recurrent pregnancy loss (RPL), defined as two or more consecutive pregnancy losses before 24 weeks of gestation, affects approximately 1%-2% of couples of reproductive ages. Despite comprehensive diagnostic work-up, up to 40%-50% of cases remain unexplained (uRPL). Low-dose aspirin (LDA) (50, 75, or 80 mg) administration during pregnancy has been proposed as a potential treatment to improve obstetric outcomes in women with uRPL. However, its efficacy in preventing pregnancy loss remains unclear. The aim of this systematic review and meta-analysis was to evaluate the efficacy of LDA administration on the pregnancy outcomes of women with uRPL. Methods: We systematically searched for relevant studies in PubMed, Scopus, EMBASE, Google Scholar, and the Cochrane Library without language restriction from inception until April 2025. Randomized controlled trials (RCTs) that summarize the evidence regarding the effect of LDA on obstetric outcomes in women with uRPL were included. The counted data were analyzed using relative risk (RR) as the effect-size statistic, and each effect size was assigned its 95% confidence interval (CI). This study was conducted and reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The primary outcome was the live birth rate (LBR), and secondary outcomes included preeclampsia and fetal growth restriction rates. Results: Three RCTs were included, involving a total of 656 participants. No significant improvements were observed in terms of LBR in uRPL treated with daily administration of a 50-80 mg aspirin compared to untreated uRPL women (RR = 0.97, 95% CI, 0.90-1.04, Conclusions: Our findings suggested that a 50-80 mg daily dose of aspirin does not improve the LBR of women with uRPL. Further studies, specifically RCTs using a 150 mg dose of aspirin in uRPL, are needed to clarify the efficacy of acetylsalicylic acid in preventing placental insufficiency-related pregnancy loss. PROSPERO Registration: CRD420251024932.

Indexed as

acetylsalicylic acidlive birth ratelow‐dose aspirinunexplained recurrent pregnancy loss

Identifiers

PMID42596977
PMCPMC13344574

What Socratic holds

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Registered trials

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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.