Reproductive outcomes after in vitro fertilization treatment in a cohort of Danish women transplanted with cryopreserved ovarian tissue

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Objective: To evaluate ovarian stimulation regimens and reproductive outcomes in a cohort of women undergoing ovarian tissue cryopreservation (OTC) and ovarian tissue transplantation (OTT). Design: Retrospective cohort study. Setting: University hospital and fertility clinics. Patients: Twenty-eight women undergoing OTT and in vitro fertilization (IVF) from 2012 to 2017. Intervention: OTC, OTT, and IVF. Main Outcome Measures: Ovarian stimulation and IVF outcomes. Results: In total, 99 cycles were performed in 28 patients. In 19 patients responding to stimulation, a median of 3.0 cycles per patient (range: 1–14 cycles) was performed, and 2.0 mature oocytes were retrieved per cycle. The empty follicle rate was 35.9%. Eleven women achieved 15 pregnancies, of which 60% were lost during the first or second trimester, resulting in 5 of 28 women having ≥1 live births, and seven healthy children being born. In breast cancer patients (mean age at OTC: 33.0 years), the pregnancy rates (PR) and live birth rates (LBR) were 35.0% and 5.0% per embryo transfer, respectively. Patients aged ≥34.5 years at OTC all had breast cancer and did not achieve any pregnancies. For all other diagnoses (mean age at OTC: 26.6 years), PR and LBR were 50.0% and 37.5% per embryo transfer, respectively. Collectively, 39% of patients conceived at least once, and 17.9% delivered. Frozen-thawed embryo transfer (FET) resulted in more pregnancies than did fresh embryo transfer. Conclusion: Our results suggest that women of advanced maternal age undergoing OTC and IVF have a poor ovarian reserve, resulting in a poor reproductive outcome. Interestingly, FET appeared to be superior to fresh transfer.

OriginalsprogEngelsk
TidsskriftFertility and Sterility
Vol/bind114
Nummer2
Sider (fra-til)379-387
Antal sider9
ISSN0015-0282
DOI
StatusUdgivet - aug. 2020

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