Evidence map›Paper›PMID 34215598›Full record

Trial reportBMJ open2021

Cost-effectiveness of single-layer versus double-layer uterine closure during caesarean section on postmenstrual spotting: economic evaluation alongside a randomised controlled trial.

Sanne I Stegwee, Ângela J Ben, Mohamed El Alili, Lucet F van der Voet, Christianne J M de Groot, Judith E Bosmans, Judith A F Huirne, 2Close study group

Registry-linked trialOpen access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07611331 (Single-Layer Versus Double-Layer Uterine Closure After Primary Cesarean Section), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 38% 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.

NCT07611331 nacompletednot on this mapstarted 2025, after this paper: background citation

Single-Layer Versus Double-Layer Uterine Closure After Primary Cesarean Section: Impact on Residual Myometrial Thickness and Cesarean Scar Defect Formation - A Prospective Randomized Controlled Trial

TypeinterventionalSponsorHédi Chaker HospitalRan2025 to 2026Enrolled384ConditionsCesarean Scar Defect (Isthmococele), Pelvic Pain, Spotting, Amenorrhea SecondaryArmsDouble-layer hysterorrhaphy at primary cesarean section, Single-layer hysterorrhaphy at primary cesarean section
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Trial
  2. Article
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

8 authors at 4 institutions in 1 country.

Sanne I StegweeObstetrics and Gynaecology, Amsterdam Reproduction & Development, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands s.stegwee@amsterdamumc.nl j.huirne@amsterdamumc.nl.ORCID 0000-0003-1353-5576
Ângela J BenHealth Sciences, Amsterdam Public Health, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0003-4793-9026
Mohamed El AliliHealth Sciences, Amsterdam Public Health, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0002-6341-7976
Lucet F van der VoetObstetrics and Gynaecology, Deventer Ziekenhuis, Deventer, the Netherlands.ORCID 0000-0001-5389-646X
Christianne J M de GrootObstetrics and Gynaecology, Amsterdam Reproduction & Development, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0003-3277-2542
Judith E BosmansHealth Sciences, Amsterdam Public Health, Faculty of Science, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.ORCID 0000-0002-1443-1026
Judith A F HuirneObstetrics and Gynaecology, Amsterdam Reproduction & Development, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands s.stegwee@amsterdamumc.nl j.huirne@amsterdamumc.nl.ORCID 0000-0002-8248-2677
2Close study group
Vrije Universiteit Amsterdam · NLAmsterdam Neuroscience · NLAmsterdam University Medical Centers · NLDeventer Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the cost-effectiveness of double-layer compared with single-layer uterine closure after a first caesarean section (CS) from a societal and healthcare perspective.

designEconomic evaluation alongside a multicentre, double-blind, randomised controlled trial.

setting32 hospitals in the Netherlands, 2016-2018.

participants2292 women ≥18 years undergoing a first CS were randomly assigned (1:1). Exclusion criteria were: inability for counselling, previous uterine surgery, known menstrual disorder, placenta increta or percreta, pregnant with three or more fetuses. 1144 women were assigned to single-layer and 1148 to double-layer closure. We included 1620 women with a menstrual cycle in the main analysis.

interventionsSingle-layer unlocked uterine closure and double-layer unlocked uterine closure with the second layer imbricating the first.

main outcome measuresSpotting days, quality-adjusted life-years (QALYs), and societal costs at 9 months of follow-up. Missing data were imputed using multiple imputation.

resultsNo significant differences were found between single-layer versus double-layer closure in mean spotting days (1.44 and 1.39 days; mean difference (md) -0.056, 95% CI -0.374 to 0.263), QALYs (0.663 and 0.658; md -0.005, 95% CI -0.015 to 0.005), total healthcare costs (€744 and €727; md €-17, 95% CI -273 to 143), and total societal costs (€5689 and €5927; md €238, 95% CI -624 to 1108). The probability of the intervention being cost-effective at willingness-to-pay of €0, €10 000 and €20 000/QALY gained was 0.30, 0.27 and 0.25, respectively, (societal perspective), and 0.55, 0.41 and 0.32, respectively, (healthcare perspective).

conclusionDouble-layer uterine closure is not cost-effective compared with single-layer uterine closure from both perspectives. If this is confirmed by our long-term reproductive follow-up, we suggest to adjust uterine closure technique guidelines. TRIAL REGISTRATION NUMBER: NTR5480/NL5380.

Indexed as

Cesarean SectionUterusCost-Benefit AnalysisFemaleHumansNetherlandsPregnancyQuality-Adjusted Life Yearshealth economicsmaternal medicineobstetricsultrasonography

Identifiers

PMID34215598
PMCPMC8256741
OpenAlexW3175418707

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.