ArticleFrontiers in endocrinology2022
Clinical outcome analysis of frozen-thawed embryo transfer on Day 7.
Article in Frontiers in endocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 22 citations in OpenAlex.
- Repeated cryopreservation is associated with poor pregnancy outcomes after frozen-thawed embryo transfer in women aged < 35 years: a propensity-score matched cohort study.European journal of medical research · 2025Article
- Ploidy and Implantation Potential: Non-Invasive Small Non-Coding RNA-Based Health Assessment of Day 5 and 6 Blastocysts.International journal of molecular sciences · 2025Article
- Double vitrification-warming cycles coupled with one blastocyst biopsy do not affect the chance of live birth after an euploid blastocyst transfer: a propensity score matching study.Journal of translational medicine · 2025Article
- Comparative Outcomes of Day 3 and Day 5 Frozen-Thawed Embryo Transfers: A Retrospective Clinical Study.Biomedicines · 2025Article
- Euploidy rate and reproductive outcomes in embryos biopsied at days 5, 6, 7 and 8 of development: a multicenter study.Journal of assisted reproduction and genetics · 2025Observational
- Predictive model for live birth outcomes in single euploid frozen embryo transfers: a comparative analysis of logistic regression and machine learning approaches.Journal of assisted reproduction and genetics · 2025Article
- Pregnancy and neonatal outcomes of blastocysts without blastocoele re-expansion in FET patients: are they of clinical value?Journal of assisted reproduction and genetics · 2025Article
- A review of artificial intelligence applications in in vitro fertilization.Journal of assisted reproduction and genetics · 2025Review
- Assessing the clinical value of day 7 blastocysts: a predictive model for preimplantation genetic testing for aneuploidy (PGT-A) cycles.Journal of assisted reproduction and genetics · 2025Article
- A novel machine-learning framework based on early embryo morphokinetics identifies a feature signature associated with blastocyst development.Journal of ovarian research · 2024Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: To investigate the clinical outcomes of Day 7 (D7) frozen-thawed embryo transfer (FET) and to provide a reference value for clinical work. Methods: This was a retrospective cohort study. Patients undergoing FET cycles in the Reproductive Medicine Center of the Third Affiliated Hospital of Zhengzhou University between December 2015 and January 2021 were included. According to the developmental stage of the embryos at transfer, the embryos were divided into three groups: Day (D) 5, D6 and D7 blastocysts. Group D7 was compared with Groups D5 and D6. Simultaneously, the preimplantation genetic testing (PGT) and non-PGT cycles in Group D7 were analyzed and compared. The main outcomes were the clinical pregnancy, live birth and miscarriage rates. The secondary outcomes were the implantation and euploidy rates. Results: In total, 5945, 4094 and 137 FET cycles were included in the D5, D6 and D7 groups, respectively. The clinical pregnancy rate was significantly lower in Group D7 than in Groups D5 (13.9% vs 62.9%, Conclusions: D7 blastocyst transfer can yield a live birth rate that is lower than that for D5 and D6 blastocysts but has value for transfer. PGT for D7 blastocysts may reduce the number of ineffective transfers and improve the outcome of D7 blastocyst transfer, which can be performed according to a patient's situation.
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