Search

STUDY QUESTION What is the standpoint of an international expert panel on ovarian tissue cryopreservation (OTC) in young females with Turner syndrome (TS)? SUMMARY ANSWER The expert panel states that OTC should be offered to young females with TS, but under strict conditions only. WHAT IS KNOWN ALREADY OTC is already an option for preserving the fertility of young females at risk of iatrogenic primary ovarian insufficiency (POI). Offering OTC to females with a genetic cause of POI could be the next step. One of the most common genetic disorders related to POI is TS. Due to an early depletion of the ovarian reserve, most females with TS are confronted with infertility before reaching adulthood. However, before offering OTC as an experimental fertility preservation option to young females with TS, medical and ethical concerns need to be addressed. STUDY DESIGN, SIZE, DURATION A three-round ethical Delphi study was conducted to systematically discuss whether the expected benefits exceed the expected negative consequences of OTC in young females with TS. The aim was to reach group consensus and form an international standpoint based on selected key statements. The study took place between February and December 2018. PARTICIPANTS/MATERIALS, SETTING, METHODS Anonymous panel selection was based on expertise in TS, fertility preservation or medical ethics. A mixed panel of 12 gynaecologists, 13 (paediatric) endocrinologists, 10 medical ethicists and 20 patient representatives from 16 different countries gave consent to participate in this international Delphi study. In the first two rounds, experts were asked to rate and rank 38 statements regarding OTC in females with TS. Participants were offered the possibility to adjust their opinions after repetitive feedback. The selection of key statements was based on strict inclusion criteria. MAIN RESULTS AND THE ROLE OF CHANCE A total of 46 participants completed the first Delphi round (response rate 84%). Based on strict selection criteria, six key statements were selected, and 13 statements were discarded. The remaining 19 statements and two additional statements submitted by the expert panel were re-evaluated in the second round by 41 participants (response rate 75%). The analysis of the second survey resulted in the inclusion of two additional key statements. After the approval of these eight key statements, the majority of the expert panel (96%) believed that OTC should be offered to young females with TS, but in a safe and controlled research setting first, with proper counselling and informed consent procedures, before offering this procedure in routine care. The remaining participants (4%) did not object but did not respond despite several reminders. LIMITATIONS, REASONS FOR CAUTION The anonymous nature of this study may have led to lack of accountability. The selection of experts was based on their willingness to participate. The fact that not all panellists took part in all rounds may have resulted in selection bias. WIDER IMPLICATIONS OF THE FINDINGS This international standpoint is the first step in the global acceptance of OTC in females with TS. Future collaborative research with a focus on efficacy and safety and long-term follow-up is urgently needed. Furthermore, we recommend an international register for fertility preservation procedures in females with TS. STUDY FUNDING/COMPETING INTEREST(S) Unconditional funding (A16-1395) was received from Merck B.V., The Netherlands. The authors declare that they have no conflict of interest.

ObjectiveTo investigate the occurrence of live birth in women with Turner syndrome (TS) after ovarian tissue cryopreservation in childhood followed by auto transplantation in adulthood and to find reliable prognostic markers for estimating the ovarian reserve in girls with TS in the future.SettingAn observational cohort study with long-term follow-up in a tertiary fertility clinic in the Netherlands. Patients recruitment between January 2018 and December 2021.Participants100 females aged 2 through 18 years with classical Turner (ie, 45,X0) or Turner variants (ie, 45,X mosaicism or structural anomalies). Girls with Y chromosomal content, minor X deletions with marginal impact on fertility, active HIV, hepatitis B or hepatitis C infection, and/or an absolute contra indication for surgery, anaesthesia or future pregnancy will be excluded.InterventionsOvarian cortical tissue will be harvested by performing a unilateral oophorectomy via laparoscopic approach. Ovarian cortex fragments will be prepared and cryopreserved. One fragment per patient will be used to determine follicular density by conventional histology, and to perform fluorescence in situ hybridisation analysis of ovarian cells. Routine chromosome analysis will be performed on both lymphocytes and buccal cells. A blood sample will be taken for hormonal analysis and all subjects will undergo a transabdominal ultrasound to determine the uterine and ovarian size. Patient characteristics, pregnancy rates and pregnancy outcomes will be collected from the patient’s medical record.Ethics and disseminationThe study protocol has been approved by the Central Committee on Research Involving Human Subjects in November 2017 (CCMO NL57738.000.16).Trial registration numberNCT03381300.

Study question What are the experiences with the decision-making process of girls with Turner syndrome (TS) considering ovarian tissue cryopreservation (OTC), their parents and healthcare providers? Summary answer Offering a new option to preserve fertility in TS caused unrealistic hope leading to challenges for healthcare providers to fulfil the ideal of informed consent. What is known already Due to premature ovarian insufficiency, girls with TS have only a small chance of genetic offspring. OTC might increase these odds. Healthcare providers and scientist are still cautious in offering OTC to girls with TS because of the many uncertainties regarding OTC in this patient group. Hence, OTC is now offered to girls with TS between 2 and 18 years old in a research setting: the TurnerFertility study. Study design, size, duration A retrospective qualitative study consisting of a survey and focus groups. Within a year after counselling, families (n = 132) received a survey with 30 questions regarding their experiences with the decision-making process and also an invitation for a focus group. The focus groups were conducted between January and October 2019 and lasted 51-84 minutes. The topic lists were based on literature research and survey results. Results were analysed following a thematic analysis approach. Participants/materials, setting, methods This is a sub-study of the prospective intervention study within an academical medical centre. Focus groups were composed through purposive sampling. Focus group 1 (FG1) consisted of five gynaecologists involved in counselling, FG2 with seven paediatricians who referred girls for counselling, FG3 with nine parents of girls with TS between 2 and 12 years old and FG4 with three parents of girls with TS between 13 and 17 years old. Main results and the role of chance 90% of survey respondents appreciated counselling regarding fertility options and considered it an enrichment of existing healthcare. The individual consultation was rated as most contributing by 66% of the survey respondents, followed by the information meeting (37%) and decision aid (3%). The focus groups revealed that many had not discussed options for future parenthood with a healthcare provider before. Girls with TS and their parents indicated that the option of OTC raised hope for future genetic offspring, and at once made them feel like they had no choice but to take this chance. The small chance of success did not influence the decision for families who opted for OTC. Some parents who had to decide for their young daughter accepted OTC to give their daughter the option to decide herself whether to make use of the cryopreserved tissue later in life. Gynaecologists found it challenging to truly make families grasp a realistic perspective of OTC in TS and the associated mental and physical risks. Gynaecologists and paediatricians struggled with conflicting moral principles of non-maleficence against respect for autonomy: healthcare providers recognized the scientific relevance for the TS population, while it felt inconsistent with the disproportionate burden for some individual patients. Limitations, reasons for caution Because there was no validated survey for this topic in TS, we developed a survey based on literature research and experiences of a dedicated TS team. Among the survey responders and focus group participants a greater proportion decided for OTC compared to the overall counselled group (75% vs 60%). Wider implications of the findings This study gives insight in the issues to consider when implementing new technologies regarding fertility, in which parents have to decide for their child, where it is expected that anticipated decision regret plays a major role, or where healthcare providers experience conflicting duties as scientist and physician. Trial registration number not applicable

Research question Can reflectance confocal microscopy (RCM) be used to determine follicle density in human ovarian cortex fragments that are intended for fertility restoration? Design RCM was used on living cortex tissue fragments derived from five bovine ovaries and 13 human ovaries. All tissue fragments were cryopreserved and thawed before RCM analysis. Follicle numbers and distribution were determined by RCM and histology. Before and after RCM, general tissue viability and follicle integrity were assessed by a glucose uptake assay and neutral red staining, respectively. Results RCM can detect all stages of follicle development in living ovarian tissue to a maximum depth of 250 µm. In bovine tissue, all follicles were located within this 0–250 µm range. In human ovarian tissue, follicles were also present below the 250 µm RCM threshold, implying that only a percentage of the total number of follicles could be detected with RCM. The percentage of follicles detected by RCM appeared to be age dependent. The RCM procedure did not affect the glucose uptake by the tissue, whereas neutral red staining indicated a high level of follicle survival. Conclusion In this proof of concept study, we have shown that RCM is a promising technique to determine the density of follicles ex vivo in living human ovarian cortex fragments, apparently without compromising the vitality of the tissue. Safety studies and further optimization of the RCM technique with a focus on increasing the penetration depth are required before clinical use of RCM.

Item does not contain fulltext STUDY QUESTION: What is the current guideline adherence by general practitioners (GPs) for work-up and subsequent referral from primary to secondary care for patients suffering from infertility? SUMMARY ANSWER: Guideline adherence by GPs concerning infertility was 9.2% in couples referred. WHAT IS KNOWN ALREADY: Adherence to recommendations can decrease unnecessary referral, diagnostics and treatments, and consequently result in lower expenditures. Moreover, patients can be saved from unnecessary hospital visits, emotional burden and out of pocket costs. STUDY DESIGN, SIZE, AND DURATION: A retrospective cohort study among 306 patients referred for basic fertility work-up between January 2011 and June 2013 from primary care to a secondary care teaching hospital or a tertiary hospital with IVF facilities. PARTICIPANTS/MATERIALS, SETTING AND METHODS: Couples were eligible to participate when there was no previous referral for fertility problems and the duration of the child wish was