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- W2510103346 abstract "Ovarian cryopreservation is still considered an experimental fertility preservation strategy and the success rates with the transplantation (OT) of previously banked ovarian tissue are unknown. Here we sought to meta-analyze published and unpublished data, including our own to determine success rates of OT. Meta-analysis combined with original data. Medical literature was reviewed from the year 2000, when the first case of OT with autologous cryopreserved tissue was reported. Additional cases were retrieved from review articles, meeting abstracts and personal communications. These included 7 OT cases performed by us. When there was lack of clarity, authors were contacted for additional information. 201 OTs were performed with cryopreserved tissue between 1999 and 2016. Of those where the surgical technique was described, 163 (3 with robot assistance) were performed laparoscopically and 14 via laparotomy. Twenty women underwent repetitive OT with their banked tissue. There were 68 babies born and 6 pregnancies were ongoing; six women had 2 or more children after OT. Two children were born after heterotopic (abdominal wall) OTs. Of the live births, 50% were from ART and 50% from spontaneous conception. The cohort characteristics and success rates are shown in Table 1.Tabled 1Current State of OT with Cryopreserved TissueAge at Cryopreservation (range)26.2 ± 6.62 years (9.5-38.7)Age at Transplantation (range)32.9 ± 4.86 years (13-43)Maternal age Age at Delivery34.2 ± 1.6 years (25-39)Gestational Age at Delivery38.2 ± 1.6 weeks (33-41)Clinical Pregnancy Rate/Patient56.3% (58/103)Live Birth Rate+OG/Patient35.4% (55/155)Endocrine Function/Patient95.4% (147/154) Open table in a new tab The mean age at ovarian cryopreservation was 26.2 with women undergoing OT at the mean age of 32.9. In only five and seven studies the numerators and denominators could be determined for clinical pregnancy (CPR) and livebirth rates + ongoing pregnancy (LBR+ OG), respectively. The CPR and LBR+OG were 56.3% and 35.4% respectively among women desiring pregnancy. The overwhelming majority of livebirths occurred after 2010, compared to the prior period (58 vs. 8, respectively) indicating accelerated progress with the procedure. Of note, 14% of patients underwent OT for endocrine restoration and regardless of the intent, 95.4% of all OTs resulted in the restoration of ovarian endocrine function. Success rates of OT with previously cryopreserved banked ovarian tissue have reached acceptable levels, with ovarian endocrine function restored in nearly all patients. Given this recent convincing data and the ability of OTs to restore fertility without a need for ART, there should be a discussion for its removal from the experimental category." @default.
- W2510103346 created "2016-09-16" @default.
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- W2510103346 date "2016-09-01" @default.
- W2510103346 modified "2023-10-16" @default.
- W2510103346 title "Current succes and efficiency of autologous ovarian transplantation with cryopreserved tissue: a meta-analysis" @default.
- W2510103346 doi "https://doi.org/10.1016/j.fertnstert.2016.07.392" @default.
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