An interventional study of EOS in EOS, Pregnancy Related and Fetus Fetus, sponsored by University Hospital, Clermont-Ferrand. Completed at 1 site in France. Open to female participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-05-22.
Sponsored by University Hospital, Clermont-Ferrand · Not applicable, Interventional, and Diagnostic
When a patient presents with a fetus in PS after 36+0SA, after acceptance of participation in the study, pelvimetry with evaluation of the height of the fetal presentation by EOS® system in the upright and sitting position will be performed. CT pelvimetry will not be performed. The patient may then be offered an attempt at VME, with clear, fair and appropriate information, after being informed of the data from the right standing EOS® pelvimetry (report and images). VME will be performed according to the recommendations and practice of the department. In the event of failure with a fetus that remains in PS, the choice of delivery route will be decided in consultation with the patient after clear, fair and appropriate information.
If the patient wishes to have a vaginal delivery, the pregnancy will be continued without intervention until spontaneous labour or induction in case of indication (premature rupture of membranes (PMR), over term, or intercurrent maternal or fetal pathology). The modalities of the delivery route and/or a possible induction will be discussed between the obstetric team and the patient.
If the patient wishes a caesarean delivery in case of persistent PS, the delivery will be scheduled after 39+0SA or earlier if indicated (RPM, intercurrent maternal or fetal pathology). In the case of a successful VME with a fetus that remains in cephalic presentation until labour, management will follow current recommendations. The characteristics of the dimensions and angles of the obstetric pelvis and the height of the fetal presentation in the standing and sitting positions, the performance and success of MEC, the choice of delivery route, and the final delivery route will be recorded.
The 3rd trimester ultrasound is performed between 30+0 and 35+0SA, preferably between 30+0 and 32+0SA. In case of breech presentation (PS), an ultrasound check at the Clermont-Ferrand University Hospital from 36+0SA is usually requested. If PS is confirmed, the patient will be given the information sheet concerning breech fetuses published by the Collège National des Gynécologues et Obstétriciens Français (CNGOF) in 2020 and the patient will be offered to participate in the PelviEOS study.
Information about the study will be given by the investigator or his delegates during the presentation ultrasound.
After sufficient time for reflection and consent, EOS® pelvimetry in the upright and sitting position will be performed, starting at 36+0SA, and prior to attempted external manoeuvre version (EMV). The EOS® pelvimetry will be performed in the radiology department of the Clermont-Ferrand University Hospital, Estaing site. No other irradiating examination will be carried out, such as a pelvic CT scan, which will be replaced by pelvimetry using the EOS® system.
The examination will initially be carried out in the standing position, then in the sitting position on a stool.
A marker on the floor represented by two footprints will allow the straight standing and sitting images to be taken with equivalent and reproducible angles of femoral rotation.
The parameters assessed from the images taken by the EOS® system will be in the standing and sitting positions:
After having been informed of the results of the pelvimetry performed in the upright position only (report and pictures), the performance of a VME will be proposed (the results of the pelvimetry in the sitting position will be transmitted after delivery, for statistical analysis).
If the patient wishes, an attempt at VME in the maternity ward of the Clermont-Ferrand University Hospital can be programmed from 36+0SA in accordance with the recommendations.
In the event of a successful MVA with a fetus that remains in cephalic presentation until labour begins, management will follow current recommendations.
In the event of refusal or failure of VME, the different delivery options will again be explained to the patient in accordance with the recommendations.
If the patient wishes to have a vaginal delivery, the pregnancy will be continued without intervention until spontaneous labour or induction if indicated (premature rupture of membranes (PMR), overdue delivery, intercurrent maternal or fetal pathology). The modalities of the delivery route and/or a possible induction will be discussed between the obstetric team and the patient.
If the patient wishes a caesarean delivery in case of persistent PS, the delivery will be scheduled from 39+0SA or earlier in case of indication (RPM, intercurrent maternal or fetal pathology).
The characteristics of the dimensions and angles of the obstetrical pelvis and the height of the fetal presentation in the standing and sitting positions, the performance and success of a VME, the choice of the delivery route and the actual delivery route will be recorded.
41 studies on the registry are indexed under Breech Presentation; 10 are open to participants now.
This study's enrollment of 90 is below the median of 119 across 31 interventional studies indexed under Breech Presentation.
Browse Breech Presentation studies →University Hospital, Clermont-Ferrand is the lead sponsor of 859 studies on the registry; 179 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
pregnant women with a breech fetus performing standing and sitting EOS pelvimetry
Device: EOS
pelvimetry by EOS in standing and sitting position
Real way of delivery for women with a fetus in PS after 36+0SA.
To compare pelvimetry data (different radiographic characteristics of the obstetrical pelvis and height of the fetal presentation (in centimeter) ) recorded by the EOS® system in the standing and sitting positions between cases with a caesarean delivery and cases with a vaginal delivery in pregnant women with a breech fetus after 36+0SA.
Time frame: through the completion of studies, an average of 2 year
Successful completion of the VME
To compare pelvimetry data (different radiographic characteristics of the obstetric pelvis and height of fetal presentation (in centimeter)) from the EOS® system in the standing and sitting positions between successful and unsuccessful VME in pregnant women with breech fetuses after 36+0SA.
Time frame: through the completion of studies, an average of 2 year
Intention to deliver vaginally if breech presentation persists
To compare pelvimetry data (different radiographic features of the obstetric pelvis and height of fetal presentation (in centimeter)) in pregnant women with breech fetuses after 36+0SA using EOS® in the standing and sitting positions between cases referred for caesarean delivery and cases referred for vaginal delivery.
Time frame: through the completion of studies, an average of 2 year
Measurement of fetal cervical flexion by measuring the craniospinal hinge angle.
To study the feasibility of measuring fetal neck flexion (in degrees).
Time frame: through the completion of studies, an average of 2 year
Ran from Jan 2022 to primary completion in Feb 2025, 36 months.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
University Hospital, Clermont-Ferrand →