Evidence map›Paper›PMID 41603692›Full record

Trial reportInternational journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics2026

Vacuum 5-step technique versus OdonAssist: Which is easier to learn for professionals without experience in assisted vaginal births? A simulation study.

Marcos Javier Cuerva, Candela Durá, Andrés Aramendia, Marta Cortes, Francisco Lopez, José Luis Bartha

Abstract readRandomized Controlled TrialComparative Study
In one paragraph

Trial report in International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 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. Letter to the Editor: Vacuum 5-step technique versus OdonAssist: Which is easier to learn for professionals without experience in assisted vaginal births? A simulation study.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
    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

6 authors.

Marcos Javier CuervaDepartment of Obstetrics, Hospital Universitario La Paz, Madrid, Spain.ORCID https://orcid.org/0000-0002-8013-4732
Candela DuráFacultad de Ciencias Biomédicas y de la Salud, Universidad Alfonso X el Sabio (UAX), Madrid, Spain.
Andrés AramendiaDepartment of Obstetrics, Hospital Universitario La Paz, Madrid, Spain.
Marta CortesDepartment of Obstetrics, Hospital Universitario La Paz, Madrid, Spain.ORCID https://orcid.org/0000-0002-2073-7355
Francisco LopezDepartment of Obstetrics, Hospital Universitario La Paz, Madrid, Spain.
José Luis BarthaDepartment of Obstetrics, Hospital Universitario La Paz, Madrid, Spain.ORCID https://orcid.org/0000-0001-5697-9690

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo compare the ease of learning the Vacca 5-step vacuum technique versus the OdonAssist device for assisted vaginal birth (AVB) among healthcare professionals without previous experience in AVBs.

methodsA prospective, randomized crossover, simulation-based study was conducted with 12 final-year medical students. Each participant underwent training in both techniques. The primary outcome was the number of attempts required to achieve three consecutive error-free AVBs on a simulation model. Secondary outcomes included procedure duration, perceived difficulty, and error rates.

resultsA total of 24 training sessions were studied, including 123 simulated AVBs (74 vacuum, 49 OdonAssist). Participants required fewer attempts to master the OdonAssist technique compared with the Vacca 5-step vacuum technique (4, interquartile range (IQR) 3-5, attempts versus 6, IQR 4-8, attempts; P = 0.012). Training sessions and AVBs with OdonAssist were also perceived as easier.

conclusionBoth techniques can be effectively taught using simulation-based methods. However, the OdonAssist device was easier to learn and required fewer repetitions, making it a promising tool for introducing AVB into settings where AVB is underused.

Indexed as

Simulation TrainingVacuum Extraction, ObstetricalAdultClinical CompetenceCross-Over StudiesFemaleHumansPregnancyProspective StudiesStudents, Medicalassisted vaginal birthOdonAssistoperative birthsimulation trainingvacuum

Identifiers

PMID41603692
PMCPMC13278629

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.