- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02813525
Ultrasound Monitoring of Fetuses With Vascular Intra-uterine Growth Restriction (IUGR) Using the Isthmus Systolic Index (ISI): Feasibility, Comparison to Normal Fetuses and Association With Perinatal Mortality (f-ISI-RCIU)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Today evaluating the hemodynamic tolerance of the fetus with IUGR, is based on clinical evidence of fetal well-being and ultrasound arguments, since we know in fact that there is a correlation between Doppler indices of cardiovascular function and perinatal mortality.
The flow to the systolic aortic isthmus may be a marker of systolic performance balance of both ventricles. An index of systolic flow velocities (ISI) has previously been described in a population of normal fetuses. Fetuses with IUGR, the velocities recorded in the aortic isthmus could be affected and the normal development of the ISI should be changed, because of the increase in placental resistance on one hand, and the gradual deterioration ventricular functions on the other one. Investigators hypothesize that the ISI index in the context of placental insufficiency could provide additional arguments on the extraction timing, the prognosis and the fetal extraction mode to severe hypoxia.
The strategy evaluates the feasibility of measuring the ISI index on Doppler systolic flow in the aortic isthmus in the follow-up by ultrasound of the fetus with IUGR due to placental insufficiency.
The ISI is obtained from this flow by calculating the ratio of the minimum systolic velocity (called Nadir) on the peak systolic velocity (called Peak) or Nadir / Peak. The fetal extraction decision (birth) will be taken, blinded the outcome of the ISI, following the protocol of national recommendations for the management of fetuses with IUGR.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Julie THOMAS, MD
- Phone Number: +33 (0)557656109
- Email: julie.thomas@chu-bordeaux.fr
Study Contact Backup
- Name: Lorena SANCHEZ BLANCO
- Phone Number: +33 (0)557656110
- Email: lorena.sanchez-blanco@chu-bordeaux.fr
Study Locations
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-
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Bordeaux, France
- Service de gynécologie-obstétrique et de médecine fœtale
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Contact:
- Lorena SANCHEZ BLANCO
- Phone Number: +33 (0)557656110
- Email: lorena.sanchez-blanco@chu-bordeaux.fr
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Contact:
- Julie THOMAS, MD
- Phone Number: +33 (0)5 57 65 61 09
- Email: julie.thomas@chu-bordeaux.fr
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Principal Investigator:
- Julie THOMAS, MD
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Sub-Investigator:
- Frédéric COATLEVEN, MD
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Sub-Investigator:
- Marie-Anne COUSTEL, MD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Gestational age determined by ultrasound dating of the first quarter
IUGR group: estimated fetal weight <10th percentile associated with
- An abnormal umbilical artery Doppler with pulsatility index >95th percentile
- OR a confirmation of placental vascular disease by histological examination
- CONTROL group: non IUGR fetuses for gestational age (normal for weight, Doppler, and structural analyse)
Exclusion Criteria:
- Twin or multiple pregnancy,
- Fetal weight> 10th percentile
- Presence of fetal infection
- Structural fetal anomaly or fetal chromosomal abnormality
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
IUGR group
estimated fetal weight <10th percentile associated with an abnormal umbilical artery Doppler with IP>95th percentile or a confirmation of placental vascular disease by histological examination
|
Measure of the ISI index on Doppler systolic flow in the aortic isthmus in the follow-up by ultrasound of the fetus
|
CONTROL group
non IUGR fetuses for gestational age (normal for weight, Doppler, and structural analyse)
|
Measure of the ISI index on Doppler systolic flow in the aortic isthmus in the follow-up by ultrasound of the fetus
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Compare the evolution of the values of the ISI in the fetus with IUGR relative to those of fetuses without IUGR fetuses for the same gestational age
Time Frame: Up to 3 months
|
Up to 3 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Assess the feasibility of the Doppler and the measure of the parameter
Time Frame: Up to 3 months
|
|
Up to 3 months
|
Compare the reproducibility of the measurement between sonographers with different levels of expertise
Time Frame: Up to 3 months
|
Up to 3 months
|
|
Estimate the association between ISI index and perinatal mortality and the performance of the ISI in predicting perinatal mortality
Time Frame: Up to 3 months
|
Up to 3 months
|
Collaborators and Investigators
Sponsor
Investigators
- Study Chair: Paul PEREZ, MD, University Hospital Bordeaux, France
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CHUBX 2014/16
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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