Congenital Hypothyroidism
Conditions
Keywords
eutopic thyroid gland, transient hypothyroidism
Brief summary
In France, the incidence of congenital hypothyroidism has increased significantly since the newborn screening program was introduced in 1978. The largest increase is seen in children with eutopic thyroid gland. More than one-third of children with eutopic gland have transient hypothyroidism. Clinical practice guidelines recommend to re-evaluate thyroid function in children with eutopic gland around the age of 3 years to determine whether hypothyroidism is transient or permanent. Up until today it is still difficult to determine early on whether hypothyroidism is transient or permanent in children with eutopic gland. Our aim is to identify one or more predictive factors for transient congenital hypothyroidism in children with eutopic gland or thyroid hemiagenesis.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* Children with congenital hypothyroidism * Eutopic thyroid gland or thyroid hemiagenesis * Born between 1996 and 2017 * Treated at the Nancy Regional and University Hospital * Follow-up of at least 3,5 years.
Exclusion criteria
* Polymalformative syndrome * Thyroid dysgenesis except for thyroid hemiagenesis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Identify one or more predictive factors for transient congenital hypothyroidism in children with eutopic gland or thyroid hemiagenesis. | 42 months |
Secondary
| Measure | Time frame |
|---|---|
| Compare the dose of Levothyroxine between children with transient and permanent congenital hypothyroidism at 6 months, 1 year, 2 years and 3 years follow-up. | 6 months, 1 year, 2 years, 3 years |
| Assess the percentage of children with psychomotor impairment at the age of 3,5 years in both groups. | 42 months |
| Assess how many children have had a hearing evaluation in both groups (excluding the newborn hearing screening). | 42 months |
Countries
France