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  • Title: The individualized choice of embryo transfer timing for patients with elevated serum progesterone level on the HCG day in IVF/ICSI cycles: a prospective randomized clinical study.
    Author: Yang S, Pang T, Li R, Yang R, Zhen X, Chen X, Wang H, Ma C, Liu P, Qiao J.
    Journal: Gynecol Endocrinol; 2015 May; 31(5):355-8. PubMed ID: 25558791.
    Abstract:
    This study analyzed the clinical outcomes of patients with elevated progesterone level on the HCG day in IVF/ICSI cycles, with different timing of embryo transfer. A total of 123 patients were involved in this prospective randomized clinical study. Group 1: blastocyst transfer group, 38 cases; Group 2: frozen-thawed embryo transfer group (first FET cycle), 42 cases; Group 3: fresh embryo transfer group, 43 cases. The basal FSH level was comparable among three groups (6.7 ± 3 versus 7.0 ± 2 versus 6.9 ± 2.4, p = 0.897). The clinical pregnancy rate was highest in group 2, lowest in group 3, with significantly difference (31.6% versus 38.1% versus 13.9%, p = 0.037). The implantation rate and live birth rate were still lowest in group 3 (21.9% versus 19.8% versus 6.7%, p = 0.016 and 18.4% versus 31% versus 11.6%, p = 0.081). In conclusion, the elevated progesterone level will affect clinical pregnancy rate in fresh embryo transfer cycles. We suggest frozen-thawed embryo transfer for these patients. However, for those patients who expressed the wish to have fresh embryo transfer, they should be suggested fresh blastocyst transfer, if they have more than five good quality embryos.
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