Evidence map›Paper›PMID 29526165›Full record

Trial reportReproductive health2018

Odon device for instrumental vaginal deliveries: results of a medical device pilot clinical study.

Javier A Schvartzman, Hugo Krupitzki, Mario Merialdi, Ana Pilar Betrán, Jennifer Requejo, My Huong Nguyen, Effy Vayena, Angel E Fiorillo, Enrique C Gadow, Francisco M Vizcaino and 10 more

Open access · goldAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Reproductive health, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Outcomes of the novel Odon Device in indicated operative vaginal birth.American journal of obstetrics and gynecology · 2021
    Trial
  4. Article
  5. Obstetrics and gynecology devices designed for low- and middle-income countries: A narrative review.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Review
  6. Article
  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

20 authors at 7 institutions in 4 countries.

Javier A SchvartzmanDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Hugo KrupitzkiDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Mario MerialdiUNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland.
Ana Pilar BetránUNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland.
Jennifer RequejoPartnership for Maternal, Newborn and Child Health, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland.
My Huong NguyenUNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland.
Effy VayenaDepartment of Health Sciences and Technology, ETH Zurich, Auf der Mauer 17, 8092, Zurich, Switzerland.
Angel E FiorilloDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Enrique C GadowDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Francisco M VizcainoDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Felicitas von PeteryDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
Victoria MarroquinDepartment of Obstetrics and Gynecology, Centro de Educación Médica e Investigaciones Clínicas "Norberto Quirno" (CEMIC-IUC - CONICET), University Hospital, Av. Galván 4102 1431FWO, Buenos Aires, Argentina.
María Luisa CafferataInstituto de Efectividad Clínica y Sanitaria (IECS - CONICET), Dr Emilio Ravignani 2024, C1414CPV, Buenos Aires, Argentina.
Agustina MazzoniInstituto de Efectividad Clínica y Sanitaria (IECS - CONICET), Dr Emilio Ravignani 2024, C1414CPV, Buenos Aires, Argentina.
Valerie VannevelSAMRC Maternal and Infant Health Care Strategies, Department of Obstetrics and Gynaecology, University of Pretoria, Pretoria, South Africa.
Robert C PattinsonSAMRC Maternal and Infant Health Care Strategies, Department of Obstetrics and Gynaecology, University of Pretoria, Pretoria, South Africa.
A Metin GülmezogluUNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland.
Fernando AlthabeInstituto de Efectividad Clínica y Sanitaria (IECS - CONICET), Dr Emilio Ravignani 2024, C1414CPV, Buenos Aires, Argentina.
Mercedes BonetUNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), Department of Reproductive Health and Research, World Health Organization, Avenue Appia 20, CH-1211, Geneva 27, Switzerland. bonetm@who.int.
World Health Organization Odon Device Research Group
Consejo Nacional de Investigaciones Científicas y Técnicas · ARWorld Health Organization · CHCentro de Educación Médica e Investigaciones Clínicas Norberto Quirno · ARInstituto de Efectividad Clínica y Sanitaria · ARUniversity of Pretoria · ZABecton Dickinson (United States) · USETH Zurich · CH

Funding

World Health Organization 001
6 · The paper itself

Abstract

backgroundA prolonged and complicated second stage of labour is associated with serious perinatal complications. The Odon device is an innovation intended to perform instrumental vaginal delivery presently under development. We present an evaluation of the feasibility and safety of delivery with early prototypes of this device from an early terminated clinical study.

methodsHospital-based, multi-phased, open-label, pilot clinical study with no control group in tertiary hospitals in Argentina and South Africa. Multiparous and nulliparous women, with uncomplicated singleton pregnancies, were enrolled during the third trimester of pregnancy. Delivery with Odon device was attempted under non-emergency conditions during the second stage of labour. The feasibility outcome was delivery with the Odon device defined as successful expulsion of the fetal head after one-time application of the device.

resultsOf the 49 women enrolled, the Odon device was inserted successfully in 46 (93%), and successful Odon device delivery as defined above was achieved in 35 (71%) women. Vaginal, first and second degree perineal tears occurred in 29 (59%) women. Four women had cervical tears. No third or fourth degree perineal tears were observed. All neonates were born alive and vigorous. No adverse maternal or infant outcomes were observed at 6-weeks follow-up for all dyads, and at 1 year for the first 30 dyads.

conclusionsDelivery using the Odon device is feasible. Observed genital tears could be due to the device or the process of delivery and assessment bias. Evaluating the effectiveness and safety of the further developed prototype of the BD Odon Device™ will require a randomized-controlled trial.

trial registrationANZCTR ACTRN12613000141741 Registered 06 February 2013. Retrospectively registered.

Indexed as

Extraction, ObstetricalAdultArgentinaCervix UteriFemaleHumansPerineumPilot ProjectsPregnancyPregnancy OutcomeProof of Concept StudySouth AfricaInstrumental vaginal deliveryOdon deviceSecond stage of labour

Identifiers

PMID29526165
PMCPMC5846255
OpenAlexW2806898674

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.