Thyroid Disorders and In Vitro Outcomes of Assisted Reproductive Technology: An Unfortunate Combination?

Autor: Poppe K; Endocrine Unit; Departments of Université Libre de Bruxelles (ULB), Brussels, Belgium., Autin C; Gynecology, Obstetrics, and Reproductive Medicine Unit and Université Libre de Bruxelles (ULB), Brussels, Belgium., Veltri F; Endocrine Unit; Departments of Université Libre de Bruxelles (ULB), Brussels, Belgium., Sitoris G; Endocrine Unit; Departments of Université Libre de Bruxelles (ULB), Brussels, Belgium., Kleynen P; Endocrine Unit; Departments of Université Libre de Bruxelles (ULB), Brussels, Belgium., Praet JP; Internal Medicine; CHU Saint-Pierre, Université Libre de Bruxelles (ULB), Brussels, Belgium., Rozenberg S; Gynecology, Obstetrics, and Reproductive Medicine Unit and Université Libre de Bruxelles (ULB), Brussels, Belgium.
Jazyk: angličtina
Zdroj: Thyroid : official journal of the American Thyroid Association [Thyroid] 2020 Aug; Vol. 30 (8), pp. 1177-1185. Date of Electronic Publication: 2020 Feb 18.
DOI: 10.1089/thy.2019.0567
Abstrakt: Background: The impact of thyroid disorders on in vitro outcomes of assisted reproductive technology (ART) remains controversial. Therefore, the aim of our study was to investigate whether thyroid peroxidase antibodies (TPO-Abs)/thyroid autoimmunity (TAI) or thyroid function (serum thyrotropin [TSH])/subclinical hypothyroidism are associated with an altered number of oocyte retrieval (NOR), fertilization rate (FR), and embryo quality (EQ). Methods: Cross-sectional study in 279 women in a single center, comprising 297 cycles and 1168 embryos. In vitro data (NOR, FR, and EQ) were documented in two groups; one according to thyroid function in women without TAI (TSH ≤2.5 and >2.5 mIU/L) and one according to the presence/absence of TAI (determined by TPO-Abs). EQ was evaluated according to international criteria and classified as excellent/good and poor. Women treated with levothyroxine (LT4) were excluded. Furthermore, the impact of thyroid parameters on outcomes, normal NOR (>6 or 8) and high FR (>60%), was verified in a multivariable logistic regression model. Results: In women without TAI, 27% had TSH levels >2.5 mIU/L, the prevalence of TAI was 8%, and overall, 6% of women had TSH levels >4.2 mIU/L. NOR, FR, and EQ were comparable between study groups. In the regression analysis, women aged ≥30 years and receiving a high ovarian stimulation dosage (>2300 IU/cycle) had lower rates of normal NOR (odds ratio [OR] 0.18 [95% confidence interval, CI 0.04-0.72]; p  = 0.016 and OR 0.17 [CI 0.06-0.48]; p  < 0.001, respectively). Conclusions: Our results do not suggest an impact of thyroid antibodies/autoimmunity and (dys)function on ART in vitro outcomes.
Databáze: MEDLINE