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[Latent and postpartum thyroiditis. Prospective study]
C Houdent1, M F Turck, J P Basuyau
1Service de Médecine Interne et Endocrinologie, CHU Rouen, Hôpital de Boisguillaume.
Thyroid evaluation was performed in 85 women at childbirth, then between 2 and 7 months, and 14 months later. Transient subclinical hypothyroidism was found in one woman; antithyroid antibodies were found in 10 and were persistent in 6, suggesting a late thyroiditis. For these 6 cases, 5 HLA typing showed 3 Locus DR4. The proportion of antithyroid antibody was the same in a reference population. This finding would be in agreement with the hypothesis of a latent thyroiditis, revealed by pregnancy. Relative iodine deficiency in France could explain the low frequency of post partum thyroiditis in the present study.
Thyroid evaluation was performed in 85 women at childbirth, then between 2 and 7 months, and 14 months later. Transient subclinical hypothyroidism was found in one woman; antithyroid antibodies were found in 10 and were persistent in 6, suggesting a late thyroiditis. For these 6 cases, 5 HLA typing showed 3 Locus DR4. The proportion of antithyroid antibody was the same in a reference population. This finding would be in agreement with the hypothesis of a latent thyroiditis, revealed by pregnancy. Relative iodine deficiency in France could explain the low frequency of post partum thyroiditis in the present study.