Gonadotropin Stimulation Reduces the Implantation and Live Birth Rate but Not the Miscarriage Rate of Embryos Transferred When Compared to ... View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2022-06-29

AUTHORS

Vera Ruth Mitter, Flavia Grädel, Alexandra Sabrina Kohl Schwartz, Michael von Wolff

ABSTRACT

Research suggests that gonadotropin stimulation in in vitro fertilization (IVF) treatment affects embryo quality and the endometrium that might influence embryo implantation, placentation and establishment of a viable pregnancy. We assessed the impact of gonadotropin stimulation on implantation, live birth and miscarriage rates per transferred embryo by comparing stimulated and unstimulated IVF treatment. In a cohort of 728 couples, 1310 IVF cycles with successful embryo transfer were analysed; 857 cycles were stimulated with gonadotropins > 75 IU/day (333 poor responder < 4 oocytes; 524 normal responders), and 453 were unstimulated. In total, 1913 fresh cleavage-stage embryos were transferred. Zygote but no embryo selection was performed, and supernumerous zygotes were vitrified. The implantation rate was defined as number of sonographically detected amniotic sacs; live birth rate as number of children born per transferred embryo. Modified mixed effect Poisson regression was used to account for the dependency of cycles and embryos within the same women and the same transfer cycle. Adjustments were made for maternal age, parity, primary or secondary infertility and indication for IVF. Per transferred embryo, implantation rates (rate ratio (RR) 1.37; 95% CI 1.04–1.81; p = 0.028; aRR 1.42; 95% CI 1.10–1.84; p = 0.008) and live birth rates (RR 1.33; 95% CI 0.95–1.86; p = 0.093; aRR 1.38; 95% CI 1.01–1.88; p = 0.044) were higher in NC-IVF compared to cIVF normal responders. Miscarriage did not differ (RR 0.99; 95% CI 0.59–1.65; p = 0.965; aRR 0.90; 95% CI 0.52–1.53 p = 0.698). Similar results were obtained in poor responders. The study suggests an impact of gonadotropin stimulation on the implantation potential of embryos. More... »

PAGES

1-8

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s43032-022-01016-8

DOI

http://dx.doi.org/10.1007/s43032-022-01016-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1149067271

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/35768691


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