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Korean Journal of Obstetrics & Gynecology 1997;40(4):732-739.
Published online January 1, 2001.
Influence of Antithyroid Antibodies in Euthyroid Women on the Outcome of Superovulatin with Intrauterine Insemination.
Chung Hoon Kim, Sung Han Lee, Hee Dong Chae, Nak Yon Kim, Byung Moon Kang, Yoon Seok Chang, Jung Eun Mok
Department of Obstetrics and Gyneology, College of Medicine, University of Ulsa, Asan Medical Center, Seoul, Korea.
Abstract
The present study was designed to investigate if antithyroid antibodies(ATA) could affect the pregnancy outcome in euthyroid women undergoing superovulation with intrauterine insemination(IUI). From January 1995 to September 1996, 18 euthyrouid women with ATA who undersent superovulation with IUI were suudied. Thirty-two euthyroid women without ATA who underwent superovulation with IVI were served as control. Thyroid peroxidase antibody (TPOA) and thyroglobulin antibody(TGA) were assayed using radio ligand assay kits as ATA. All patient included in the study and the control groups had only ovulatory factor in infertility or had suffered from unexplained infertility. The infertile patients with ovulatory factor were resistant to clomiphene citrate(CC) or had previously failed to conceive despite 3 ovulatory cycles using CC. Long protocol of gonadotropin-releasing hormone agonist(GnRH-a) was used for superovulation in all patients. There were no significant differences between the study and the control groups in patient characteristics such as age, infertility duration and hormonal profil. There were also no significant differences between two groups with respect to the clinicalresponse to superovulation. The clinical pregnancy rate per cycle was significantly lower in the study group at 23.5%(8/34) compared with 44.4%(24/54) in the control group.l The biochemical pregnancy rate per cycle was significantly higher in the study group at 17.6%(6/34) compared with 3.7%(2/54) in the control group. The miscarriage rate seemed to be higher in the study group than in the control group(37.5% vs 8.3%), but the difference was not statistically significant. In the study group, both TPOA and TGA titers were higher in the miscarriage group than in the ongoing or delivery group, although statistical significance was not found. This study suggests that ATA in euthyroid women could be associated with the poor pregnancy outcome in superovulation with IUI cycles and ATA may serve as possible marker for reproductive failure.
Key Words: Antithyroid antibody, Superovulation, Intrauterine insemination


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