The association between pregnancy outcomes of frozen thawed embryo transfers and previous SARS-CoV-2 infections.

ABSTRACT: The present study aimed to explore whether there is an association between the transfer of frozen thawed embryos (FET) obtained during SARS-CoV-2 infection and an increased risk of adverse pregnancy outcomes. We performed a case-control cohort study. Couples undergoing FET treatment in six reproductive centers in four provinces from February 2022 to December 2022 were enrolled. A total of 440 couples who underwent FET treatment participated in this study, with 110 and 330 couples in the SARS-CoV-2 -positive and SARS-CoV-2-negative cohorts, respectively. The baseline characteristics of the cohorts were comparable. The SARS-CoV-2-positive cohort had statistically significantly lower ongoing pregnancy rate, clinical pregnancy rate, implantation rate, and live birth rate than that of the SARS-

SUBMITTER: Zhao H 

PROVIDER: S-EPMC12267480 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature