Thyroid peroxidase autoantibodies predict poor metabolic control and need for thyroid treatment in pregnant IDDM women

被引:18
作者
FernandezSoto, L
Gonzalez, A
Lobon, JA
Lopez, JA
Peterson, CM
EscobarJimenez, F
机构
[1] UNIV HOSP,DEPT MED,ENDOCRINE & METAB UNIT,GRANADA,SPAIN
[2] SAMSUM MED RES FDN,SANTA BARBARA,CA
关键词
D O I
10.2337/diacare.20.10.1524
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVE - To study whether the presence of antithyroid peroxidase antibodies (TPO-Abs) before gestation in IDDM affects thyroid function and metabolic control during pregnancy and early postpartum as well as neonatal outcome. RESEARCH DESIGN AND METHODS - A prospective study at an outpatient endocrine-obstetric unit was carried out in 20 pregnant IDDM women. Free T4 (thyroxine), thyroid-stimulating hormone (TSH), TPO-Abs, and HbA(1c) were assayed before gestation; during the first, second, and third trimester of pregnancy; and 3 months postpartum. RESULTS - HbA(1c) was significantly higher in TPO-Ab(+) women than in those who were TPO-Ab(-) during the second (P < 0.01) and third (P < 0.05) trimesters. HbA(1c) levels significantly decreased in TPO-Ab(-) patients when the second (P < 0.01) and third (P < 0.05) trimesters were compared with before the pregnancy and the first trimester. There was a significant increase in the dosage of insulin for TPO-Ab(+) versus TPO-Ab(-) patients during the second (P < 0.05) and third (P < 0.01) trimesters and 3 months postpartum (P < 0.05). TSH was significantly increased in the second (P < 0.001) and third (P < 0.05) trimesters and 3 months postpartum (P < 0.01) when compared with TPO-Ab(-) patients; 7.6% of the TPO-Ab(-) group and 29% in the TPO-Ab(+) group presented postpartum thyroid dysfunction, and 42% of the TPO-Ab(+) women required thyroid treatment. CONCLUSIONS - Pregnant women with IDDM who have a positive test for TPO-Abs before gestation have poorer glucose control and a high prevalence of hypothyroidism. Therefore we recommend that prepregnant IDDM patients be screened for anti-TPO-Abs. Those with a positive result should be followed with serial monitoring of free T4 and TSH levels during each trimester as well as the postpartum period.
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页码:1524 / 1528
页数:5
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