ArticleFrontiers in endocrinology2026
Outcomes of frozen embryo transfers from a large monocentric cohort (2982 cycles): towards a preferential use of cycles with a
Article in Frontiers in endocrinology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: To determine if endometrial preparation protocols for frozen embryo transfers (FET) impact clinical and neonatal outcomes. Methods: A monocentric cohort study including all first autologous FET cycles of a single blastocyst from January 1st, 2020 to September 30th, 2023. The primary endpoint was live birth (LBR). Secondary endpoints included hCG-positive pregnancy (> 100 IU/l), ongoing pregnancy (OPR), miscarriage, birthweight and term. Outcomes were also analyzed by subgroup: Day 5/Day 6 embryos. Among the 2982 FET cycles, 1507 (50.5%) were artificial cycles (AC) and 1475 (49.5%) were cycles with a Results: Age at the time of transfer (35.3 Conclusion: Our study pleads for a preferential use of CLC protocols for endometrial preparation for FET in ovulatory women.
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