The hypothesis tested is that the physical changes associated with cervical ripening result in a detectable decrease in rigidity. The main objective of this study is therefore to determine whether the measured elastographic rigidity of cervical tissues in addition to cervix size can be used to predict delivery within the next 48 hours (creation of a prognostic score).
The secondary objectives of this study are: A-To compare the prognostic qualities of elastography scores and fetal fibronectin measurements for predicting the risk of delivery in the next 48 hours. B-To evaluate the economic impact of introducing elastographic and fibronectin measures during consultatios for obstetric emergencies from the point of vue of the French social security system and the hospital. C-To evaluate the prognostic value of elastographic measurements in the subgroup twins. D-To study elastography variation according to patient outcomes. E-Evaluate the reproducibility of intra-and inter-rater elastographic measurements.
Study Type
OBSERVATIONAL
Enrollment
66
Included patients will have a cervical ultrasound upon arrival in the maternity ward. This latter exam will include elastographic measurements, and will be followed by a vaginal fibronectin measurement. Patients will then be treated via a tocolytic (anti-contraction treatment), and two hours later a second cervial ultrasound including elastographic measures will be performed.
Included patients will have a cervical ultrasound upon arrival in the maternity ward. This latter exam will include elastographic measurements, and will be followed by a vaginal fibronectin measurement. Patients will then be treated via a tocolytic (anti-contraction treatment), and two hours later a second cervial ultrasound including elastographic measures will be performed.
CHRU de Nîmes - Hôpital Universitaire Carémeau
Nîmes, France
Ultrasound measure of the cervix (mm)
Time frame: Day 0
Ultrasound measure of the cervix (mm)
Time frame: Day 2
Elastography score
The score ranges from 0 to 10.
Time frame: Day 0 or within 12 hours
Elastography score
Score ranges from 0 to 10
Time frame: after 2 hours of tocolytic treatment on day 0
Vaginal fetal fibronectin
Time frame: Day 0
Vaginal fetal fibronectin
Time frame: Day 2
Avoidable hospital costs
Time frame: Hospital discharge (expected maximum of 20 days)
Was the first ultrasound/elastography carried out while the patient was already on tocolytics? yes/no
Time frame: Day 0 or 1
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Included patients will have a cervical ultrasound upon arrival in the maternity ward. This latter exam will include elastographic measurements, and will be followed by a vaginal fibronectin measurement. Patients will then be treated via a tocolytic (anti-contraction treatment), and two hours later a second cervial ultrasound including elastographic measures will be performed.
Included patients will have a cervical ultrasound upon arrival in the maternity ward. This latter exam will include elastographic measurements, and will be followed by a vaginal fibronectin measurement. Patients will then be treated via a tocolytic (anti-contraction treatment), and two hours later a second cervial ultrasound including elastographic measures will be performed.