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Usable blastocysts developed from in-vitro-matured metaphase I oocytes in preimplantation genetic testing cycles.
Li, Yuehan; Jin, Lei; Tian, Wenqu; Yan, Enqi; Li, Yufeng; Ren, Xinling; Guo, Na.
Afiliación
  • Li Y; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
  • Jin L; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
  • Tian W; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
  • Yan E; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
  • Li Y; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
  • Ren X; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.. Electronic address: renxinling@126.com.
  • Guo N; Reproductive Medicine Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.. Electronic address: tsguona@126.com.
Reprod Biomed Online ; 48(3): 103571, 2024 03.
Article en En | MEDLINE | ID: mdl-38244346
ABSTRACT
RESEARCH QUESTION Are blastocysts derived from in-vitro-matured metaphase I (MI) oocytes less likely to produce usable embryos for transfer compared with those derived from in-vivo-matured oocytes in cycles undergoing preimplantation genetic testing (PGT)?

DESIGN:

The primary outcome was usable blastocyst rate, which was compared between blastocysts derived from in-vitro-matured MI oocytes after ovarian stimulation and from in-vivo-matured oocytes. Logistic regression analysis using generalized estimating equations was used to control for confounders in the analysis of factors that may influence the chance of a blastocyst being usable and in the comparison of embryological outcomes. Student's t-test, Mann-Whitney U test, chi-squared tests or Fisher's exact tests were used to compare clinical and pregnancy outcomes.

RESULTS:

A total of 1810 injected metaphase II (MII) oocytes from 154 PGT cycles involving 154 couples were included in this study. A total of 1577 MII oocytes were in-vivo-matured and 233 were in-vitro-matured MI oocytes. The usable blastocyst rate was similar between the in-vitro-matured MI oocyte group and the in-vivo-matured oocyte group (adjusted RR 0.97, 95% CI 0.40 to 2.34). Three live births were achieved using usable blastocysts derived from in-vitro-matured MI oocytes.

CONCLUSIONS:

If in-vitro-matured MI oocytes can be fertilized and develop into blastocysts, their ability to provide usable embryos for transfer is similar compared with those developed from in-vivo-matured oocytes. These blastocysts could be considered valuable for women with few viable embryos in assisted reproductive technology cycles.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oocitos / Resultado del Embarazo Límite: Female / Humans / Pregnancy Idioma: En Revista: Reprod Biomed Online Asunto de la revista: MEDICINA REPRODUTIVA Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oocitos / Resultado del Embarazo Límite: Female / Humans / Pregnancy Idioma: En Revista: Reprod Biomed Online Asunto de la revista: MEDICINA REPRODUTIVA Año: 2024 Tipo del documento: Article Pais de publicación: Países Bajos