Evidence map›Paper›PMID 32928047›Full record

ReviewProceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine2021

An engineering perspective of vacuum assisted delivery devices in obstetrics: A review.

Dushyant Goordyal, John Anderson, Ali Alazmani, Peter Culmer

Abstract readReview
In one paragraph

Review in Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Efficacy of obstetrics forceps and vacuum extractor to assist during vaginal delivery: systematic review and meta-analysis.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2025
    Pooled it
  2. Risk factors for subgaleal hemorrhage and adverse early neonatal outcomes: a single-center cohort study with exclusive use of forceps.Journal of perinatology : official journal of the California Perinatal Association · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Subgaleal hemorrhage in neonates: a comprehensive review and summary recommendations.Journal of perinatology : official journal of the California Perinatal Association · 2025
    Review
  7. Article
  8. 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

4 authors.

Dushyant GoordyalUniversity of Leeds Faculty of Engineering, Mechanical Engineering, Leeds, West Yorkshire, UK.ORCID https://orcid.org/0000-0002-6049-7456
John AndersonBradford Teaching Hospitals NHS Foundation Trust, Bradford, West Yorkshire, UK.
Ali AlazmaniUniversity of Leeds Faculty of Engineering, Mechanical Engineering, Leeds, West Yorkshire, UK.
Peter CulmerUniversity of Leeds Faculty of Engineering, Mechanical Engineering, Leeds, West Yorkshire, UK.ORCID https://orcid.org/0000-0003-2867-0420

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Complications during childbirth result in the need for clinicians to use 'assisted delivery' in over 12% of cases (UK). After more than 50 years in clinical practice, vacuum assisted delivery (VAD) devices remain a mainstay in physically assisting child delivery; sometimes preferred over forceps due to their ease of use and reduced maternal morbidity. Despite their popularity and enduring track-record, VAD devices have shown little evidence of innovation or design change since their inception. In addition, evidence on the safety and functionality of VAD devices remains limited but does present opportunities for improvements to reduce adverse clinical outcomes. Consequently in this review we examine the literature and patent landscape surrounding VAD biomechanics, design evolution and performance from an engineering perspective, aiming to collate the limited but valuable information from a disparate field and provide a series of recommendations to inform future research into improved, safer, VAD systems.

Indexed as

ObstetricsChildFemaleHumansPregnancyVacuum Extraction, Obstetricalbirthmaternal traumaneonatal traumaobstetricsoperative vaginal deliveryVacuum assistive deliveryvacuum extractionventouse

Identifiers

PMID32928047
PMCPMC7780266

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.