[Transition, fertility and options for preservation of fertility]. / Transition, fertilité et options de préservation de fertilité.

Oftentimes ignored or infrequently expressed, some transgender persons harbor a desire for parenthood. Given the evolution of medical techniques and the enacting of legislative reforms, it is henceforth possible to propose fertility preservation strategies in the overall context of gender transidentity. During the "female to male" (FtM) transition pathway, androgen therapy has an impact on gonadic function, generally inducing blockage of the ovarian function, with amenorrhea. Even though these events may be reversed on cessation of treatment, the possible long-term effects on future fertility and on the health of children yet to be born are little known. Moreover, transition surgeries definitively compromise the possibility of pregnancy insofar as they involve bilateral adnexectomy and/or hysterectomy. Options for fertility preservation in the framework of FtM transition are premised on cryopreservation of oocytes and/or ovarian tissue. In a comparable manner, even though relevant documentation is lacking, hormonal treatments for persons transitioning from male to female (MtF) can have an impact on future fertility. In the event of surgery involving bilateral orchidectomy in which spermatozoid cryopreservation has not been carried out, fertility is definitively impossible. In both cases and under present-day legislation, numerous legal and regulatory barriers render highly problematic the reutilization of cryopreserved gametes. Given these different constraints, it is indispensable to closely supervise these types of treatment by proposing psychological support.

Fertility preservation in women with malignant and borderline ovarian tumors: Experience of the French ESGO-certified center and pregnancy-associated cancer network (CALG).

OBJECTIVE: To describe strategy and results of fertility preservation (FP) in patients with malignant and borderline ovarian tumors. METHODS: Consecutive cohort study of 43 women with malignant or borderline ovarian tumors who underwent FP between February 2013 and July 2019. The study was conducted in national expert center in Tenon University Hospital, Sorbonne University: French ESGO-certified ovarian cancer center and pregnancy-associated cancer network (CALG). Main outcome measure was FP technique proposed by multidisciplinary committee, FP technique used, time after surgery, number of fragments, histology and follicle density (if ovarian tissue freezing), number of expected, retrieved and frozen oocytes (if ovarian stimulation). RESULTS: Pathological diagnosis was malignant epithelial ovarian tumor in five women (11.6%), rare malignant ovarian tumor in 14 (32.6%), borderline in 24 (55.8%), and mostly unilateral (79.1%) and stage I (76.7%). Mean age at diagnosis was 26.8 ± 6.9 years and mean tumor size 109.7 ± 61 mm. Before FP, mean AFC was 11.0 ± 6.1 and AMH levels were 2.7 ± 4.6 ng/mL. Six ovarian tissue-freezing procedures were performed (offered to 13). Twenty-four procedures of ovarian stimulation and oocyte freezing were performed after surgical treatment for 19 women (offered to 28) with a median interval of 188 days. The mean number of mature oocytes retrieved per stimulation was 12.4 ± 12.8. At least 10 mature oocytes were frozen for 52.6% of the women. No FP was offered to five women. CONCLUSION: Oocyte and ovarian tissue cryopreservation should be offered to patients with malignant and borderline ovarian tumors. More data are needed to confirm ovarian stimulation and ovarian tissue grafting safety.

Medical techniques of fertility preservation in the male and female.

Therapeutic advances in many medical fields have led to the need to consider patient quality of life after curative medico-surgical treatments for malignancy. Thus, it has become a major issue for young patients to preserve the ability to become "genetic" parents, with their own gametes. While the preservation of male fertility has been an established technique for more than 30 years, it is only in the last decade that progress in cryopreservation techniques has allowed surgeons to offer successful oocyte and ovarian tissue cryobanking. However, in addition to the still experimental nature of some fertility preservation techniques, this practice also raises many ethical and moral questions.

What threshold values of antral follicle count and serum AMH levels should be considered for oocyte cryopreservation after in vitro maturation?

STUDY QUESTION: What threshold values of ultrasonographic antral follicle count (AFC) and serum anti-Müllerian hormone (AMH) levels should be considered for ensuring the cryopreservation of sufficient number of in vitro matured (IVM) oocytes, in cancer patients seeking fertility preservation (FP)? SUMMARY ANSWER: AFC and serum AMH values >20 follicles and 3.7 ng/ml, respectively, are required for obtaining at least 10 IVM oocytes for cryopreservation. WHAT IS KNOWN ALREADY: IVM of cumulus oocyte complexes (COCs) followed by oocyte cryopreservation has emerged recently as an option for urgent FP. Recent data have reported that, in healthy patients, 8-20 cryopreserved oocytes after ovarian stimulation would maximize the chance of obtaining a live birth. Although both AFC and AMH have been reported as predictive factors of IVM success in infertile patients with polycystic ovary syndrome (PCOS), there is a dramatic lack of data regarding the values of these parameters in oncological patients as candidates for FP. STUDY DESIGN, SIZE, DURATION: From January 2009 to April 2015, we prospectively studied 340 cancer patients, aged 18-41 years, as candidates for oocyte cryopreservation following IVM. PARTICIPANTS/MATERIALS, SETTING, METHODS: All patients had AFC and AMH measurements, 48-72 h before oocyte retrieval, regardless of the phase of the cycle. COCs were recovered under ultrasound guidance 36 h after hCG priming. Logistic regression allowed the determination of threshold values of AFC and AMH, for obtaining at least 8, 10 or 15 matures oocytes frozen after the IVM procedure. Similar analyses were performed for a final number of mature oocytes ≤2. MAIN RESULTS AND THE ROLE OF CHANCE: Among the 340 cancer patients included, 300 were diagnosed with breast cancers, 14 had hematological malignancies and 26 underwent the procedure for others indications. Overall, the mean age of the population was 31.8 ± 4.5 years. Mean AFC and serum AMH levels were 21.7 ± 13.3 follicles and 4.4 ± 3.8 ng/ml, respectively. IVM was performed in equal proportions during the follicular or luteal phase of the cycle (49 and 51%, respectively). Statistical analysis showed that AFC and AMH values above 28 follicles and 3.9 ng/ml, 20 follicles and 3.7 ng/ml and 19 follicles and 3.5 ng/ml are required, respectively, for obtaining at least 15, 10 or 8 frozen IVM oocytes with a sensitivity ranging from 0.82 to 0.90. On the contrary, ≤2 IVM oocytes were cryopreserved when AFC and AMH were <19 follicles and 3.0 ng/ml, respectively. LIMITATIONS, REASONS FOR CAUTION: Although the potential of cryopreserved IVM oocytes from cancer patients remains unknown, data obtained from infertile PCOS women have shown a dramatically reduced competence of these oocytes when compared with that of oocytes recovered after ovarian stimulation. As a consequence, the optimal number of IVM oocytes frozen in candidates for FP is currently unpredictable. WIDER IMPLICATIONS OF THE FINDINGS: Cryopreservation of oocytes after IVM should be considered in the FP strategy when ovarian stimulation is unfeasible, in particular when markers of the follicular ovarian status are at a relatively high range. Further investigation is needed to objectively assess the real potential of these IVM oocytes after cryopreservation. Therefore, even when a good COCs yield is expected, we should systematically encourage IVM in combination with ovarian tissue cryopreservation. STUDY FUNDING/COMPETING INTERESTS: No external funding was obtained for the present study. The authors have no conflict of interest to declare. TRIAL REGISTRATION NUMBER: Not applicable.

[Impact of polycystic ovary syndrome on oocyte and embryo quality]. / Influence du syndrome des ovaires polykystiques sur la qualité ovocytaire et embryonnaire.

This review analyzes the literature concerning oocyte and embryo quality, in case of in vitro fertilization (IVF) for women with polycystic ovary syndrome (PCOS). Alterations in oocyte quality, and consequently in embryo quality, may be due to endocrine and intra-ovarian paracrine changes. However, most of publications find similar biological and clinical results after IVF, with or without microinjection, for women with PCOS compared to those obtained in control populations. Subgroups of more pejorative outcome probably exist within PCOS population. Finally, obesity, which is frequent in PCOS, is clearly deleterious, and multidisciplinary care, including lifestyle modifications, is then needed.