Relation Between Maternal Iodine Status and Prenatal Foetal Thyroid Dimension

NCT ID: NCT00162539

Last Updated: 2012-07-26

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 130 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2005-10-31
• Study Completion Date: 2006-06-30

Brief Summary

Mother with severe Iodine deficiency are more likely to have neonates with further poor mental development . In order to select population which could benefit from iodine supplementation, ioduria has been tested but cannot be routinely practised. Strong background data suggest that iodine status could be antenatally correlated with foetal thyroid volume. The aim of that study is to examine correlation between these two parameter in a population of 130 healthy pregnant women.

Detailed Description

Iodine is an essential element in thyroid homeostasis, particularly in pregnant woman and her fetus. Various studies have clearly shown that antenatal thyroid disorders at both the mother and the fetus could cause in extreme situations of neurological consequences.

At a broader scale, subtle alterations of thyroid hormone balance has been implicated in developmental delays and deviations of the IQ bell curve in newborn infants of mothers with elevated TSH.

The clinical implications of these basic data and public health are yet to confirm.

It has been clearly established that there is a moderate iodine deficiency in France with a decreasing gradient from west to east. In the Ile de France, there is a moderate iodine deficiency, this has led some teams to propose a systematic supplementation of all women in iodine.

One way to target women who really need supplements systematic determination of urinary iodine tongue; this assay is reliable but is difficult to implement in an ad hoc practice at the individual level.

Our team has expertise in the field of fetal thyroid, particularly in its sonographic and reference curves of the perimeter and diameter of the thyroid are now clearly established reliably.

Knowing that iodine deficiency is causing a decline in maternal urine iodine with a phenomenon goitrigénèse and biological hypothyroidism and that some studies have shown that neonatal thyroid volumes were higher in iodine deficient mothers . We postulate that the measurement of fetal thyroid by our criteria can be correlated with maternal urinary iodine.

If this were the case, we will have a simple test to identify iodine supplementation in pregnant women.

Conditions

Deficiency Disease

Keywords

foetal thyroid mensuration

Study Design

• Allocation Method: NA
• Intervention Model: SINGLE_GROUP
• Primary Study Purpose: PREVENTION
• Blinding Strategy: NONE

Interventions

echography

Correlation of neonatal thyroid volume with maternal iodine deficiency

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• normal single pregnancy in a healthy volunteer

Exclusion Criteria

• any associated disease
• pertubation of thyroid status at 12 GA

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 50 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: No

Sponsors

Assistance Publique - Hôpitaux de Paris

OTHER

Sponsor Role: lead

Responsible Party

Department Clinical Research of Develeppement

Principal Investigators

Dominique LUTON

Role: PRINCIPAL_INVESTIGATOR

Assistance Publique - Hôpitaux de Paris

Locations

Hospital Beaujon

Paris, , France

Countries

France

References

Luton D, Alberti C, Vuillard E, Ducarme G, Oury JF, Guibourdenche J. Iodine deficiency in northern Paris area: impact on fetal thyroid mensuration. PLoS One. 2011 Feb 16;6(2):e14707. doi: 10.1371/journal.pone.0014707.

Reference Type: DERIVED

PMID: 21359193 (View on PubMed)

Other Identifiers

Foetus iodine Status

Identifier Type: -

Identifier Source: org_study_id