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A Multidisciplinary Center for Prenatal Diagnosis is a structure that brings together a group of professionals, specialists in the care during pregnancy and at the time of childbirth, of fetuses in which an anomaly is suspected or confirmed, or when there are family history of malformation or genetic disease.

  • Crew

    • 1 university professor · hospital practitioner · obstetrician-gynecologist sonographer
    • 4 hospital practitioners obstetrician-gynecologist sonographer
    • 4 hospital practitioners neonatologist pediatrician
    • 2 university lecturers · geneticist hospital practitioners
    • 1 geneticist hospital practitioner
    • 2 midwives
    • 3 fetal echocardiac hospital practitioners
    • 2 Psychologists
  • Activities

    Regional Reference

    The CPDPN responds to a regional reference activity concerning the diagnosis of fetal malformations, the taking of samples and the discussion of each file within a multidisciplinary team (paediatrician neonatologist, pediatric surgeon, psychologist, midwife, fetal pathologist, obstetrician, sonographer, geneticist, child psychiatrist, etc.).

    For this, the unit is equipped with high-level ultrasound scanners (2D, 3D, 4D and color Doppler) , also used for normal pregnancy monitoring.

    Meetings are video-transmitted with other hospitals in the region, which improves the quality of discussions and patient care. The presentation of each file is done after the patient's agreement and in strict compliance with medical secrecy.

    Request for presentation of a file to the CPDPN by a professional
    • CPDPN liaison form ”
    • You do not have access to the Therap-e platform:
      your written request (downloadable below) can be sent by contacting the secretariat on 02 31 27 25 24 or by email .
    Your support

    To come to these referral consultations, remember to bring all the ultrasounds and test results done during your pregnancy and a document attesting to your blood group (card or blood test result) . If it has been done, the result of the trisomy 21 screening must be in your possession; if your doctor has not given it to you, ask him for a copy.

    The midwives first meet with you to explain our operation, the progress of your care and to open your file.

    The sonographer doctors then meet with you to further the ultrasound examination and, if necessary, make a diagnosis.

    Most often, the examination is reassuring and the return to usual ultrasound follow-up is possible.

    However, it happens that an unusual aspect is confirmed or detected and that a follow-up in our unit is organized. Several examinations may then be necessary to make a diagnosis.

    If necessary and with your agreement, the images taken during the consultation will be presented within the Multidisciplinary Center for Prenatal Diagnosis, which meets every week. This commission brings together other sonographers from the region but also geneticists, neonatologists, psychologists, pediatric radiologists, pediatric surgeons and, depending on the case, doctors from other specialties. This commission recommends a type of ultrasound follow-up for your pregnancy and/or any additional examinations to be carried out.

    Psychological support

    The suspicion of one or more organs with an unusual ultrasound appearance in your baby can generate anxiety, even if the examinations ultimately come back reassuring.

    Do not hesitate to make an appointment with one of the service psychologists. They will decide with you on the help to be put in place throughout the pregnancy.

    Useful documents

    Follow-up to Antenatal Diagnosis

    Antenatal diagnosis follow-up booklet


    Multidisciplinary Center for Prenatal Diagnosis
    • Your follow-up at the Antenatal Diagnostic Unit

      You are referred to our unit to go further in the ultrasound exploration of your baby(ies).

      This could be indicated by:

      • a particular history in your family or that of the father of the baby,
      • personal history concerning you (malformations) or history with your spouse,
      • the course of a previous pregnancy,
      • the result of trisomy 21 screening,
      • an incomplete examination or the unusual appearance of a fetal organ during your screening ultrasound,
      • taking certain medications or toxins,
      • an ongoing infection such as toxoplasmosis or cytomegalovirus
      • the type of pregnancy: we monitor monochorionic twin pregnancies (a single placenta) and triple pregnancies, even if their progress is normal,
      • another particular situation (weak growth of the fetus, anomaly of amniotic fluid, etc.)
      What is amniocentesis?

      This involves removing a small amount of the fluid that surrounds the fetus in the womb (amniotic fluid) by puncturing with a needle through the mother's belly. This examination is most often carried out to study the chromosomes of the fetus (for example for the search for trisomy) , as well as for the search for other fetal pathologies of genetic origin, or infectious (viral or parasitic: for example toxoplasmosis) .

      The examination is usually carried out from 15 – 16 weeks of amenorrhea (3 months – 3 and a half months of pregnancy) and remains possible until term. The purpose of amniocentesis is to answer specific questions through examinations of the amniotic fluid.

      This examination does not globally detect all possible abnormalities or malformations. This examination has been proposed to you for a specific reason which has been explained to you by your doctor. You are free to accept or refuse this direct debit.

      What is a trophoblast biopsy?

      This is the removal of a very small piece of tissue that will become the placenta at the end of the first trimester of pregnancy. The examination is usually carried out between 11 and 14 weeks of amenorrhea (2 months – 2 and a half months of pregnancy) .

      In some special cases, it can be done on other terms. This examination can be carried out for the study of the chromosomes of the embryo (karyotype) or for the search for certain genetic anomalies.

      This examination has been offered to you for a reason explained to you by your doctor. You are free to accept or refuse this direct debit.