The Prognostic Value of Cervical Elastography for Identifying Patients at Risk for Preterm Delivery

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Total Enrollment

66 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-02-28

Study Completion Date

2016-12-31

Brief Summary

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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).

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Detailed Description

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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.

Conditions

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Obstetric Labor Labor Onset Obstetric Labor, Premature

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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The study population

The study population consists of pregnant women presenting between the 24th and 34th week of pregnancy, with uterine contractions associated with cervical changes objectified by ultrasound examination of the cervix (5-25mm) who consult for obstetric emergencies (both single or multiple pregnancies can be included).

Intervention : Cervical ultrasound +elastography 1 Intervention : Vaginal fibronectin measurement Intervention : Tocolytic treatment for 2 hours Intervention : Cervical ultrasound +elastography 2

Cervical ultrasound +elastography 1

Intervention Type PROCEDURE

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.

Vaginal fibronectin measurement

Intervention Type BIOLOGICAL

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.

Tocolytic treatment for 2 hours

Intervention Type DRUG

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.

Cervical ultrasound +elastography 2

Intervention Type PROCEDURE

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.

Interventions

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Cervical ultrasound +elastography 1

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.

Intervention Type PROCEDURE

Vaginal fibronectin measurement

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.

Intervention Type BIOLOGICAL

Tocolytic treatment for 2 hours

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.

Intervention Type DRUG

Cervical ultrasound +elastography 2

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.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* The patient must have given her informed and signed consent
* The patient must be insured or beneficiary of a health insurance plan
* Pregnant women presenting between the 24th and 34th week of pregnancy, with uterine contractions associated with cervical changes objectified by ultrasound examination of the cervix (5-25mm)
* Single or multiple pregnancy

Exclusion Criteria

* The patient is in an exclusion period determined by a previous study
* The patient is under judicial protection, under tutorship or curatorship
* The patient refuses to sign the consent
* It is impossible to correctly inform the patient
* The patient has lost her water (placental rupture)
* History of cervical surgery

Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No