ArticleClinical and experimental reproductive medicine2023
The pregnancy outcomes of day-5 poor-quality and day-6 high-quality blastocysts in single blastocyst transfer cycles.
Article in Clinical and experimental reproductive medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pregnancy and perinatal outcomes after day 5 versus day 6 blastocyst-stage embryo transfer: A systematic review and meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2026Pooled it
- Differences in CXCR4 expression between day 5 and day 6 euploid blastocysts: A predictor of implantation potential in single embryo transfer.Clinical and experimental reproductive medicine · 2026Article
- Does Developmental Timing Matter? Comparative Analysis of Day 5 and Day 6 Euploid Blastocyst Transfers in Recurrent Implantation Failure Patients.Biomedicines · 2025Article
- Impact of Transfer Timing on Day-6 Blastocyst Pregnancy Outcomes in HRT Cycles of 2021-2024.International journal of general medicine · 2025Article
- Effect of day 5 or 6 blastocyst embryo transfer on pregnancy outcomes in euthyroid women undergoing IVF: A single centre retrospective cohort.JBRA assisted reproduction · 2024Article
- [Comparative Study of the Embryo Development and Clinical Outcomes of 3 Ovarian Stimulation Protocols in Different Age Groups].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2024Article
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5 authors.
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Abstract
objectiveThis study compared the outcomes of single blastocyst transfer cycles, using day- 5 poor-quality blastocysts and day-6 high-quality blastocysts.
methodsWe analyzed 462 frozen-thawed embryo transfer (FET) cycles performed at our center from January 2014 to December 2019. The cycles were divided into two groups: a day-5 poor-quality blastocyst transfer group (group A) and a day-6 high-quality blastocyst transfer group (group B). The clinical outcomes were tested.
resultsIn groups A and B, respectively, the clinical pregnancy rate (CPR; 61.65% vs. 67.17%, p=0.258), implantation rate (IR; 61.65% vs. 67.17%, p=0.258), and live birth rate (LBR; 69.51% vs. 77.83%, p=0.134) showed no significant differences. Moreover, when day-3 embryo quality was considered, the CPR, IR, and LBR were also similar in group A and group B (p>0.05).
conclusionThe clinical outcomes of day-5 poor-quality blastocysts and day-6 high-quality blastocysts were similar, suggesting that the developmental speed of the embryo might be more important than embryo quality for the clinical outcomes of single blastocyst transfer in FET cycles.
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