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1.
Int J Mol Sci ; 22(19)2021 Oct 08.
Article in English | MEDLINE | ID: mdl-34639209

ABSTRACT

The process of freezing cells or tissues and depositing them in liquid nitrogen at -196 °C is called cryopreservation. Sub-zero temperature is not a physiological condition for cells and water ice crystals represent the main problem since they induce cell death, principally in large cells like oocytes, which have a meiotic spindle that degenerates during this process. Significantly, cryopreservation represents an option for fertility preservation in patients who develop gonadal failure for any condition and those who want to freeze their germ cells for later use. The possibility of freezing sperm, oocytes, and embryos has been available for a long time, and in 1983 the first birth with thawed oocytes was achieved. From the mid-2000s forward, the use of egg vitrification through intracytoplasmic sperm injection has improved pregnancy rates. Births using assisted reproductive technologies (ART) have some adverse conditions and events. These risks could be associated with ART procedures or related to infertility. Cryopreservation generates changes in the epigenome of gametes and embryos, given that ART occurs when the epigenome is most vulnerable. Furthermore, cryoprotective agents induce alterations in the integrity of germ cells and embryos. Notably, cryopreservation extensively affects cell viability, generates proteomic profile changes, compromises crucial cellular functions, and alters sperm motility. This technique has been widely employed since the 1980s and there is a lack of knowledge about molecular changes. The emerging view is that molecular changes are associated with cryopreservation, affecting metabolism, cytoarchitecture, calcium homeostasis, epigenetic state, and cell survival, which compromise the fertilization in ART.


Subject(s)
Calcium/metabolism , Cryopreservation/standards , Embryo, Mammalian/cytology , Epigenesis, Genetic , Germ Cells/cytology , Infertility/therapy , Proteome/metabolism , Cell Survival , Cryoprotective Agents/chemistry , Female , Fertility Preservation/standards , Fertilization in Vitro , Germ Cells/metabolism , Humans , Infertility/metabolism , Infertility/pathology , Male , Oocytes/cytology , Oocytes/metabolism , Pregnancy , Spermatozoa/cytology , Spermatozoa/metabolism
2.
Clin Transl Oncol ; 24(2): 227-243, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34635959

ABSTRACT

Infertility is one of the main sequelae of cancer and its treatment in both children and adults of reproductive age. It is, therefore, essential that oncologists and haematologists provide adequate information about the risk of infertility and the possibilities for its preservation before starting treatment. Although many international clinical guidelines address this issue, this document is the first Spanish multidisciplinary guideline in paediatric and adult oncological patients. Experts from the Spanish Society of Medical Oncology, the Spanish Fertility Society, the Spanish Society of Haematology and Haemotherapy, the Spanish Society of Paediatric Haematology and Oncology and the Spanish Society of Radiation Oncology have collaborated to develop a multidisciplinary consensus.


Subject(s)
Fertility Preservation/standards , Infertility/prevention & control , Neoplasms , Humans , Infertility/etiology , Interdisciplinary Communication , Neoplasms/complications
3.
Ann Hematol ; 100(11): 2831-2841, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34536088

ABSTRACT

Since the survival rates of pediatric patients undergoing cancer treatment or hematopoietic stem cell transplantation (HSCT) have increased rapidly in recent decades, the late effects of treatment are now an important focus of patient care. Access to fertility preservation (FP) procedures as well as their financing differs considerably across Europe. However, some countries in Europe have recently changed the legal basis for financing FP procedures; therefore, the implementation of structures is mandatory to give patients access to FP. In this prospective cohort study, we characterized the process for establishing pediatric fertility counseling, including the development of an in-house standard procedure for recommendations regarding FP with potentially gonadotoxic treatment and valuating data from all FP counseling sessions. All data concerning patient characteristics (pubertal status, disease group) and recommendation of FP measures were prospectively collected and adoption of FP measures analyzed. Prior to the establishment of a structured process for FP in our pediatric oncology and stem cell transplantation center, there was no standardized FP counseling. We demonstrate that with the establishment of an inhouse standard procedure, it is possible to give consistent yet individualized FP counseling to approximately 90% of our patients facing gonadotoxic treatment, counseling over 200 patients between 2017 and 2019. This pilot study could potentially be adapted in other pediatric hematology, oncology, and stem cell transplantation centers to allow a more standardized handling of FP counseling for all patients facing gonadotoxic treatment.


Subject(s)
Counseling/methods , Fertility Preservation/methods , Adolescent , Antineoplastic Agents/adverse effects , Child , Child, Preschool , Cryopreservation , Female , Fertility Preservation/economics , Fertility Preservation/standards , Hematopoietic Stem Cell Transplantation , Humans , Infant , Infertility, Female/chemically induced , Infertility, Female/etiology , Infertility, Female/prevention & control , Infertility, Male/chemically induced , Infertility, Male/etiology , Infertility, Male/prevention & control , Male , Neoplasms/therapy , Oocyte Retrieval , Ovary/transplantation , Prospective Studies , Puberty , Radiation Injuries/prevention & control , Radiotherapy/adverse effects , Semen Preservation , Transplantation Conditioning/adverse effects , Young Adult
4.
J Gynecol Obstet Hum Reprod ; 50(10): 102215, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34482003

ABSTRACT

INTRODUCTION: The impact of cancer on basal fertility and ovarian response to stimulation has not yet been clarified. Evidence on this topic is scarce and conflicting. Aim of this study was to assess the impact of breast cancer stage and grade on the number of retrieved mature oocytes during controlled ovarian stimulation for fertility preservation. METHODS: Retrospective cohort study evaluating data on 101 stimulation cycles of women with breast cancer undergoing oocyte cryopreservation categorized according to breast cancer stage (low-stage: I; high-stage:II-III) and grade (low-grade: G1-2; high-grade: G3) using the American Joint Committee on Cancer staging system (VIII edition). RESULTS: High-stage disease was not associated with worse oocyte retrieval outcomes (median 7 vs 7, p = 0.75). High-grade disease patients showed a significantly lower antral follicle count (AFC) compared to low-grade disease patients (10 vs 13, p = 0.03), and required higher doses of FSH (2612 IU vs 2250 IU; p = 0.03) during stimulation. Median number of vitrified oocytes was 6 in low-grade disease patients and 7 in high-grade disease patients (p = 0.35). CONCLUSIONS: Stage and grade of breast cancer do not impact the number of retrieved mature oocytes. However, higher grade of breast cancer is associated with lower AFC at baseline and need for higher doses of gonadotropin during ovarian stimulation.


Subject(s)
Breast Neoplasms/complications , Fertility Preservation/standards , Neoplasm Staging/classification , Neoplasms/genetics , Adult , Breast Neoplasms/genetics , Cohort Studies , Female , Fertility Preservation/methods , Fertility Preservation/statistics & numerical data , Humans , Italy , Logistic Models , Neoplasm Staging/statistics & numerical data , Retrospective Studies
5.
Reprod Biomed Online ; 43(3): 351-369, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34384692

ABSTRACT

Frozen-thawed human ovarian tissue endures large-scale follicle loss in the early post-grafting period, characterized by hypoxia lasting around 7 days. Tissue revascularization occurs progressively through new vessel invasion from the host and neoangiogenesis from the graft. Such reoxygenation kinetics lead to further potential damage caused by oxidative stress. The aim of the present manuscript is to provide a systematic review of proangiogenic growth factors, hormones and various antioxidants administered in the event of ovarian tissue transplantation to protect the follicle pool from depletion by boosting revascularization or decreasing oxidative stress. Although almost all investigated studies revealed an advantage in terms of revascularization and reduction in oxidative stress, far fewer demonstrated a positive impact on follicle survival. As the cascade of events driven by ischaemia after transplantation is a complex process involving numerous players, it appears that acting on specific molecular mechanisms, such as concentrations of proangiogenic growth factors, is not enough to significantly mitigate tissue damage. Strategies exploiting the activated tissue response to ischaemia for tissue healing and remodelling purposes, such as the use of antiapoptotic drugs and adult stem cells, are also discussed in the present review, since they yielded promising results in terms of follicle pool protection.


Subject(s)
Fertility Preservation/methods , Ovary/injuries , Ovary/transplantation , Transplantation/adverse effects , Animals , Apoptosis/physiology , Female , Fertility Preservation/standards , Humans , Ovarian Follicle/injuries , Ovarian Follicle/physiology , Ovarian Reserve/physiology , Oxidative Stress/physiology
6.
Reprod Biomed Online ; 43(3): 434-445, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34384693

ABSTRACT

RESEARCH QUESTION: What are the most pressing educational needs of fertility healthcare professionals using assisted reproductive technologies (ART)? DESIGN: This mixed-methods study combined qualitative interviews with quantitative surveys. Participants included physicians and nurses specialized in reproductive endocrinology or in obstetrics/gynaecology, and laboratory specialists, with a minimum of 3 years of experience, practising in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Spain or the UK. Maximum variation purposive sampling was used to ensure a mix of experience and settings. Interviews were transcribed and coded through thematic analysis. Quantitative data were analysed using frequency tables, cross-tabulations and chi-squared tests to compare results by reimbursement context. RESULTS: A total of 535 participants were included (273 physicians, 145 nurses and 117 laboratory specialists). Knowledge gaps, skills gaps and attitude issues were identified in relation to: (i) ovarian stimulation (e.g. knowledge of treatments and instruction protocols for ovarian stimulation), (ii) embryo culture and cryopreservation/vitrification (e.g. diverging opinions on embryo freezing, (iii) embryo assessment (e.g. performing genetic testing), (iv) support of luteal phase and optimizing pregnancy outcomes (e.g. knowledge of assessment methods for endometrial receptivity), and (v) communication with patients (e.g. reluctance to address emotional distress). CONCLUSIONS: This descriptive, exploratory study corroborates previously reported gaps in fertility care and identifies potential causes of these gaps. Findings provide evidence to inform educational programmes for healthcare professionals who use ART in their practice and calls for the development of case-based education and interprofessional training programmes to improve care for patients with fertility issues.


Subject(s)
Health Knowledge, Attitudes, Practice , Health Personnel/education , Needs Assessment , Reproductive Techniques, Assisted , Adult , Delivery of Health Care/standards , Delivery of Health Care/statistics & numerical data , Female , Fertility Preservation/methods , Fertility Preservation/standards , Fertility Preservation/statistics & numerical data , Geography , Humans , Infant, Newborn , Infertility/epidemiology , Infertility/therapy , Male , Middle Aged , Ovulation Induction/methods , Ovulation Induction/standards , Pregnancy , Professional Competence/statistics & numerical data , Professional Practice/standards , Professional Practice/statistics & numerical data , Young Adult
7.
J Assist Reprod Genet ; 38(9): 2455-2463, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34312774

ABSTRACT

PURPOSE: To determine whether concomitant tamoxifen 20 mg with gonadotropins (tamoxifen-gonadotropin) versus letrozole 5 mg with gonadotropins (letrozole-gonadotropin) affects mature oocyte yield. METHODS: Open-label, single-institution, randomized trial. Inclusion criteria included the following: females, ages 18-44 years old, with new diagnosis of non-metastatic breast cancer, who were undergoing fertility preservation with either oocyte or embryo cryopreservation. Those with estrogen-receptor-positive (ER+) breast cancer were randomized to tamoxifen-gonadotropin or letrozole-gonadotropin. Another group with estrogen-receptor-negative (ER-) breast cancer was recruited, as a prospectively collected comparison arm who took neither letrozole nor tamoxifen (gonadotropin only). The primary outcome was the number of mature oocytes obtained from the cycle. The randomized groups were powered to detect a difference of three or more mature oocytes. RESULTS: Forty-five patients were randomized to tamoxifen-gonadotropin and fifty-one to letrozole-gonadotropin. Thirty-eight patients completed gonadotropin only. Age, antral follicle count, and body mass index were similar between the randomized groups. Our primary outcome of mature oocyte yield was similar between the tamoxifen-gonadotropin and letrozole-gonadotropin groups (12±8.6 vs. 11.6±7.5, p=0.81, 95%CI of difference =-2.9 to 3.7). In a pre-specified secondary comparison, mature oocyte yield was also similar with tamoxifen-gonadotropin or letrozole-gonadotropin versus gonadotropin only (12±8.6 vs. 11.6±7.5 vs. 12.4±7.2). There were no serious adverse events in any of the groups. CONCLUSIONS: Tamoxifen-gonadotropin and letrozole-gonadotropin produced a similar number of mature oocytes. Women who received either tamoxifen-gonadotropin or letrozole-gonadotropin had a similar number of oocytes to the gonadotropin-only group. TRIAL REGISTRATION: NCT03011684 (retrospectively registered 1/5/2017, after 9% enrolled).


Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Breast Neoplasms/complications , Embryo, Mammalian/cytology , Fertility Preservation/standards , Gonadotropins/therapeutic use , Infertility, Female/therapy , Oocytes/cytology , Adolescent , Adult , Cryopreservation , Dose-Response Relationship, Drug , Drug Therapy, Combination , Female , Humans , Infertility, Female/etiology , Infertility, Female/pathology , Letrozole/administration & dosage , Ovulation Induction , Tamoxifen/administration & dosage , Young Adult
8.
J Assist Reprod Genet ; 38(9): 2445-2453, 2021 Sep.
Article in English | MEDLINE | ID: mdl-34291419

ABSTRACT

PURPOSE: To determine the use of a new specialized E-Meeting for Complex Cases in Oncofertility by fertility preservation specialists (FPSs) MATERIAL AND METHODS: We present 3 years of activity of the E-Meeting for Complex Cases in Oncofertility, a new tool created in September 2016 which allows national oncofertility experts to share viewpoints about challenging cases for which they do not have experience or sufficient data in order to provide them an emergency advice within 48 h. Second, a survey was conducted to evaluate the use of this e-meeting for participating FPSs. RESULTS: One hundred and four experts have joined the e-meeting since its set-up, and 109 challenging cases have been submitted. The mean age of the patients was 22.4 ± 8.9 years, and 87.0% were female. Each submitted case received on average of 1.8 ± 1.1 different strategies for FP and the opinions of 7.1 ± 3.4 experts. Among the FPSs who submitted cases, seeking opinions from other FPSs allowed them to confirm their care plan (N = 49, 84.4%), to offer different options to their patients (N = 34, 58.6%), and to compare their practices with those of other specialists (N = 23, 39.6%). All respondents reported a self-perceived improvement in their practice of oncologic FP (n = 80, 100.0%). CONCLUSION: Specific attention should be paid to challenging cases for which the experiences of only a few individuals exist. Enhancing communication between FPSs through oncofertility networks, pooling experiences, and collecting the most complex cases is required to improve the management of these patients.


Subject(s)
Fertility Preservation/standards , Health Personnel/psychology , Infertility/therapy , Neoplasms/physiopathology , Practice Patterns, Physicians'/standards , Adult , Female , Humans , Infertility/epidemiology , Infertility/pathology , Male , Quality Improvement , Retrospective Studies , Surveys and Questionnaires , Young Adult
9.
Fertil Steril ; 116(1): 36-47, 2021 07.
Article in English | MEDLINE | ID: mdl-34148587

ABSTRACT

OBJECTIVE: To provide evidence-based recommendations to practicing physicians and others regarding the efficacy of oocyte cryopreservation (OC) for donor oocyte in vitro fertilization and planned OC. METHODS: The American Society for Reproductive Medicine conducted a literature search, which included systematic reviews, meta-analyses, randomized controlled trials, and prospective and retrospective comparative observational studies published from 1986 to 2018. The American Society for Reproductive Medicine Practice Committee and a task force of experts used available evidence and through consensus developed evidence-based guideline recommendations. MAIN OUTCOME MEASURE(S): Outcomes of interest included live birth rate, clinical pregnancy rate, obstetrical and neonatal outcomes, and factors predicting reproductive outcomes. RESULT(S): The literature search identified 30 relevant studies to inform the evidence base for this guideline. RECOMMENDATION(S): Evidence-based recommendations were developed for predicting the likelihood of live births after planned OC, autologous OC in infertile women, and donor OC, as well as factors that may impact live birth rates. Recommendations were developed regarding neonatal outcomes after using fresh vs. cryopreserved oocytes in cases of autologous or donor oocytes. CONCLUSION(S): There is insufficient evidence to predict live birth rates after planned OC. On the basis of limited data, ongoing and live birth rates appear to be improved for women who undergo planned OC at a younger vs. older age. Although there are no significant differences in per transfer pregnancy rates with cryopreserved vs. fresh donor oocytes, there is insufficient evidence that the live birth rate is the same with vitrified vs. fresh donor oocytes. Neonatal outcomes appear similar with cryopreserved oocytes compared with fresh oocytes. Future studies that compare cumulative live birth rates are needed.


Subject(s)
Cryopreservation/standards , Fertility Preservation/standards , Fertilization in Vitro/standards , Infertility, Female/therapy , Oocyte Retrieval/standards , Oocytes , Reproductive Medicine/standards , Adult , Consensus , Evidence-Based Medicine/standards , Female , Fertility , Fertility Preservation/adverse effects , Fertilization in Vitro/adverse effects , Humans , Infertility, Female/diagnosis , Infertility, Female/physiopathology , Live Birth , Oocyte Retrieval/adverse effects , Pregnancy , Pregnancy Complications/etiology , Pregnancy Rate , Risk Factors , Treatment Outcome
11.
Int J Gynecol Cancer ; 31(3): 332-338, 2021 03.
Article in English | MEDLINE | ID: mdl-33649002

ABSTRACT

Guidelines and expert consensus are lacking on fertility preservation in BRCA mutation carriers and in patients with Lynch syndrome. The safety of fertility preservation in this setting is still a topic of debate and multiple factors need to be carefully considered. The aim of this review was to analyze the reproductive potential of women harboring a genetic mutation affecting the DNA repair system and explore the efficacy and safety of existing fertility preservation strategies in these patients.


Subject(s)
BRCA1 Protein , BRCA2 Protein , Fertility Preservation/methods , Breast Neoplasms/genetics , Breast Neoplasms/prevention & control , Colorectal Neoplasms, Hereditary Nonpolyposis/genetics , Colorectal Neoplasms, Hereditary Nonpolyposis/prevention & control , Cryopreservation , Female , Fertility Preservation/standards , Humans , Mutation , Ovarian Neoplasms/genetics , Ovarian Neoplasms/prevention & control , Ovarian Reserve/genetics , Pregnancy
12.
Future Oncol ; 17(15): 1907-1921, 2021 May.
Article in English | MEDLINE | ID: mdl-33625252

ABSTRACT

Aim: To describe real-world breast cancer medications among reproductive-age women. Patients & methods: Using data from a Japanese claims database, anticancer prescriptions were classified into seven categories of amenorrhea risk based on fertility preservation guidelines. Results: We identified 2999 women with records of breast cancer and anticancer prescription from 2005 to 2018. The proportions of prescriptions were as follows: high, 4.1-12.9%; intermediate: 6.0-16.3%; low: 0.4-2.3%; very low/no: 0.3-12.2%; unknown: 33.9-45.5%; unlisted combination: 12.2-23.4%; and unlisted drug: 12.5-26.7%. The common drugs in the unknown category were trastuzumab (n = 1527), docetaxel (n = 1014), and paclitaxel (n = 995). For medications unlisted in the guidelines, various drugs and drug combinations were observed. Conclusion: Numerous anticancer drugs are currently being prescribed with insufficient evidence regarding amenorrhea risk.


Lay abstract The ability to have children for breast cancer patients is one of the key issues of cancer survivorship, especially because recent progress in anticancer treatments has enabled patients to achieve longer survival. The fertility preservation guidelines of the American Society of Clinical Oncology (2006) introduce some anticancer treatments that carry potential risks to future fertility. In this study, the anticancer prescriptions of 2999 patients with breast cancer aged between 15 and 49 years were examined. Results showed that several medications are prescribed despite the lack of information on the risk of infertility. This suggests that further research is required to fill the evidence gap, and that decision aid through adequate counseling should be undertaken.


Subject(s)
Amenorrhea/prevention & control , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Breast Neoplasms/therapy , Fertility Preservation/standards , Neoadjuvant Therapy/adverse effects , Administrative Claims, Healthcare/statistics & numerical data , Adolescent , Adult , Amenorrhea/chemically induced , Antineoplastic Combined Chemotherapy Protocols/standards , Breast Neoplasms/diagnosis , Chemotherapy, Adjuvant/adverse effects , Chemotherapy, Adjuvant/methods , Chemotherapy, Adjuvant/standards , Databases, Factual/statistics & numerical data , Drug Prescriptions/standards , Drug Prescriptions/statistics & numerical data , Female , Fertility Preservation/statistics & numerical data , Humans , Japan , Middle Aged , Neoadjuvant Therapy/standards , Neoadjuvant Therapy/statistics & numerical data , Practice Guidelines as Topic , Practice Patterns, Physicians'/standards , Practice Patterns, Physicians'/statistics & numerical data , Young Adult
13.
Fertil Steril ; 115(2): 298-304, 2021 02.
Article in English | MEDLINE | ID: mdl-33358333

ABSTRACT

The results of in vitro maturation (IVM) investigations suggest the potential for wider clinical application. This document discusses the efficacy of IVM as reported in the published literature to date. This document replaces the document of the same name, last published in 2013.


Subject(s)
Advisory Committees , Fertility Preservation/methods , In Vitro Oocyte Maturation Techniques/methods , Oocytes/physiology , Advisory Committees/standards , Female , Fertility Preservation/standards , Humans , In Vitro Oocyte Maturation Techniques/standards , Reproductive Techniques, Assisted/standards
14.
Trends Mol Med ; 27(8): 777-791, 2021 08.
Article in English | MEDLINE | ID: mdl-33309205

ABSTRACT

Cancer treatments are increasingly effective, but can result in iatrogenic premature ovarian insufficiency. Ovarian tissue cryopreservation is the only option available to preserve fertility in prepubertal girls and young women who require immediate chemotherapy. Ovarian tissue transplantation has been shown to restore hormonal cycles and fertility, but a large proportion of the follicle reserve is lost as a consequence of exposure to hypoxia. Another crucial concern is the risk of reimplanting malignant cells together with the grafted tissue. In this review, the authors advance some challenging propositions, from prevention of chemotherapy-related gonadotoxicity to ovarian tissue cryopreservation and transplantation, including the artificial ovary approach.


Subject(s)
Fertility Preservation/methods , Antineoplastic Agents/adverse effects , Antineoplastic Agents/therapeutic use , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Biomarkers , Cell Transplantation/methods , Cryopreservation/methods , Female , Fertility Preservation/standards , Humans , Medical Oncology/methods , Oocytes/cytology , Ovarian Follicle/cytology , Ovary/cytology , Pregnancy , Pregnancy Outcome
15.
Rev. iberoam. fertil. reprod. hum ; 37(3/4): 0-0, jul.-dic. 2020. tab
Article in Spanish | IBECS | ID: ibc-199279

ABSTRACT

La preservación de la fertilidad es la aplicación de estrategias médicas y de laboratorio para preservar la descendencia genética parental en adultos o niños en riesgo de esterilidad. El cáncer es la principal indicación de preservación de fertilidad en pacientes en edad reproductiva. En las últimas décadas ha incrementado la incidencia de cáncer en adolescentes. Los tratamientos oncológicos también han mejorado significativamente, por lo que hoy es posible la curación en un amplio porcentaje de pacientes. La mayoría de los niños y adolescentes con cáncer se convierten en sobrevivientes a largo plazo, lo que aumenta el interés en los efectos del tratamiento del cáncer sobre la fertilidad. Las condiciones sociales, económicas y culturales también son determinantes para decidir el momento que una pareja busque promover su fertilidad. Además, otras patologías o incluso fármacos para prevención del rechazo de órganos trasplantados pueden afectar la fertilidad y, por tanto, tales pacientes son susceptibles de orientación sobre preservación de la fertilidad. El éxito en los programas de reproducción asistida y en los tratamientos oncológicos brindan alternativas para preservar la fertilidad. En esta primera Opinión de Grupo de Expertos Mexicanos en Preservación de la Fertilidad hemos evaluado pacientes oncológicas que son candidatas a preservación de fertilidad: jóvenes con riesgo de compromiso de su fertilidad por el tratamiento oncológico, pero con reserva ovárica suficiente y pronóstico vital aceptable. También se consideraron casos especiales como la preservación social, en casos de conceptualización sexual diferente, así como los aspectos legales y éticos básicos


Fertility preservation is the application of medical and laboratory strategies to preserve parental genetic offspring in adults or children at risk of sterility. Cancer is the main indication of fertility preservation in patients of reproductive age. In recent decades, the incidence of cancer in adolescents has increased. Cancer treatments have also improved significantly, making cure possible today in a large percentage of patients. Most children and adolescents with cancer become long-term survivors, increasing interest in the effects of cancer treatment on fertility. Social, economic and cultural conditions are also decisive in deciding when a couple seeks to promote their fertility. Furthermore, other pathologies or even drugs for the prevention of rejection of transplanted organs can affect fertility and, therefore, such patients are susceptible to guidance on fertility preservation. Success in assisted reproduction programs and cancer treatments provide alternatives to preserve fertility. In this first Opinion of the Group of Mexican Experts on Fertility Preservation, we have evaluated oncological patients who are candidates for fertility preservation: young people at risk of compromising their fertility due to oncological treatment, but with sufficient ovarian reserve and acceptable vital prognosis. Special cases such as social preservation were also considered, in cases of different sexual conceptualization, as well as the basic legal and ethical aspects


Subject(s)
Humans , Male , Female , Infertility/prevention & control , Fertility Preservation/methods , Organ Sparing Treatments/methods , Neoplasms/therapy , Risk Factors , Practice Guidelines as Topic , Fertility Preservation/standards , Mexico
16.
Obstet Gynecol Surv ; 75(11): 683-691, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33252698

ABSTRACT

IMPORTANCE: Many adolescents and young adults diagnosed with Hodgkin lymphoma (HL) experience disease progression requiring high-dose alkylating salvage therapy, which often results in permanent infertility. OBJECTIVE: The aim of this report is to discuss fertility preservation options in female patients with consideration of chemotherapeutic agents in HL. EVIDENCE ACQUISITION: An electronic literature review was performed utilizing a combination of the terms "Hodgkin lymphoma," "fertility preservation," "ovarian tissue cryopreservation," "oocyte cryopreservation," "embryo cryopreservation," and "gonadotropin-releasing hormone agonist." References and data from identified sources were searched and compiled to complete this review. RESULTS: Initial treatment of HL is often nonsterilizing; however, salvage therapy and conditioning for stem cell transplantation confer significant gonadotoxicity. Established fertility preservation options for pubertal females include embryo cryopreservation and oocyte cryopreservation. These options are contraindicated within 6 months of receipt of chemotherapy. Ovarian tissue cryopreservation is an option for patients who require salvage therapy within 6 months of first-line therapy. CONCLUSIONS: Timing and choice of fertility preservation techniques depends on planned first-line chemotherapy and response to treatment. In patients initially treated with low-risk chemotherapy, it is reasonable to defer invasive fertility techniques until treatment failure; however, upfront fertility preservation should be considered in patients planning to undergo primary treatment with high-risk therapy.


Subject(s)
Antineoplastic Agents, Alkylating , Fertility Preservation , Hodgkin Disease , Infertility, Female , Antineoplastic Agents, Alkylating/administration & dosage , Antineoplastic Agents, Alkylating/adverse effects , Female , Fertility Preservation/methods , Fertility Preservation/standards , Hodgkin Disease/pathology , Hodgkin Disease/therapy , Humans , Infertility, Female/chemically induced , Infertility, Female/prevention & control , Time-to-Treatment
17.
Int J Gynecol Cancer ; 31(3): 323-331, 2021 03.
Article in English | MEDLINE | ID: mdl-33139315

ABSTRACT

Fertility preservation is an integral component of clinical decision-making and treatment design. However, the selection criteria on imaging for patients eligible for fertility preservation is still unclear. The present review aimed to summarize the main findings reported in both the literature and international guidelines on the role of imaging in the selection of patients for fertility preservation. A search strategy was developed and applied to PubMed, Scopus, Web of Science, and EMBASE to identify previous citations reporting imaging and fertility preservation in patients with gynecological cancer. We also retrieved the published guidelines on the eligibility criteria for fertility-sparing treatment of gynecological neoplasms. A description of the internal multidisciplinary guidelines, clinically in use in our institution, is provided with representative clinical cases. The literature review revealed 1291 articles and 18 of these were selected for the analysis. Both ultrasound and MRI represented the primary imaging methods for selecting patients for fertility preservation in cervical and endometrial cancers. Eligibility criteria of fertility-sparing management in patients with cervical cancer were: tumor size <2 cm, tumor distance from the internal os >1 cm, and no parametrium invasion. For patients with endometrial cancer, these included no myometrial and cervical stroma invasion. Both ultrasound and MRI play a key role in characterizing adnexal masses. These modalities provide a useful tool in identifying small ovarian lesions, thus key in the surveillance of patients after fertility sparing surgery. However, efficacy in excluding disease beyond the ovary remains limited. This review provides an update of the literature and schematic outline for the counseling and management of patients with the desire for fertility preservation.


Subject(s)
Clinical Decision-Making , Fertility Preservation/standards , Patient Selection , Endometrial Neoplasms/diagnostic imaging , Endometrial Neoplasms/pathology , Endometrial Neoplasms/therapy , Female , Humans , Magnetic Resonance Imaging/methods , Ovarian Neoplasms/diagnostic imaging , Ovarian Neoplasms/pathology , Ovarian Neoplasms/therapy , Pregnancy , Pregnancy Complications, Neoplastic/diagnostic imaging , Pregnancy Complications, Neoplastic/pathology , Pregnancy Complications, Neoplastic/therapy , Tomography, X-Ray Computed/methods , Ultrasonography/methods , Uterine Cervical Neoplasms/diagnostic imaging , Uterine Cervical Neoplasms/pathology , Uterine Cervical Neoplasms/therapy
18.
Reprod Biomed Online ; 41(6): 991-997, 2020 Dec.
Article in English | MEDLINE | ID: mdl-33032909

ABSTRACT

Reopening fertility care services across the world in the midst of a pandemic brings with it numerous concerns that need immediate addressing, such as the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on the male and female reproductive cells and the plausible risk of cross-contamination and transmission. Due to the novelty of the disease the literature contains few reports confirming an association of SARS-CoV-2 with reproductive tissues, gametes and embryos. Cryobanking, an essential service in fertility preservation, carries the risk of cross-contamination through cryogenic medium and thus calls for risk-mitigation strategies. This review aims to address the available literature on the presence of SARS-CoV-2 on tissues, gametes and embryos, with special reference to the possible sources of cross-contamination through liquid nitrogen. Strategies for risk mitigation have been extrapolated from reports dealing with other viruses to the current global crisis, for safety in fertility treatment services in general, and specifically for oncofertility.


Subject(s)
COVID-19/epidemiology , Cryopreservation , Equipment Contamination/prevention & control , Fertility Preservation , Germ Cells , Pandemics , Cryopreservation/standards , Female , Fertility Preservation/methods , Fertility Preservation/standards , Humans , Infection Control/methods , Infection Control/organization & administration , Infection Control/standards , Male , SARS-CoV-2/physiology
19.
Acta Obstet Gynecol Scand ; 99(12): 1579-1583, 2020 12.
Article in English | MEDLINE | ID: mdl-32860418

ABSTRACT

Fertility preservation in women with Turner syndrome is highly controversial. Some strongly recommend freezing of ovarian tissue at a young age, others do not. The controversy is partly due to different perspectives and professions. Biologists prefer to freeze young ovaries with high follicle density, reproductive physicians want to avoid risky operations and iatrogenic infertility by removing one ovary, and cardiologists and obstetricians warn against the risks of later pregnancies. Accordingly, fertility preservation in young women with Turner syndrome is more than just the freezing of ovarian tissue or oocytes. Fertility preservation requires a balanced decision considering the conservation of fertility, the protection of reproductive health, and future health consequences. Therefore, fertility preservation strategies should be based not only on the individual ovarian reserve but also on the genotype and the expected cardiac health status to decide what is the best option: to freeze tissue or alternatively to wait and see.


Subject(s)
Cryopreservation/methods , Fertility Preservation , Ovarian Reserve , Risk Adjustment/methods , Turner Syndrome , Women's Health , Age Factors , Attitude of Health Personnel , Female , Fertility Preservation/adverse effects , Fertility Preservation/methods , Fertility Preservation/standards , Health Status Disparities , Humans , Infertility, Female , Ovulation Induction/methods , Pregnancy , Risk Factors , Turner Syndrome/complications , Turner Syndrome/diagnosis , Turner Syndrome/epidemiology , Turner Syndrome/genetics
20.
JAMA Netw Open ; 3(7): e2010806, 2020 07 01.
Article in English | MEDLINE | ID: mdl-32678451

ABSTRACT

Importance: The opportunity to discuss fertility preservation is essential for patients of reproductive age with newly diagnosed cancer before the initiation of treatment. Objective: To identify factors associated with fertility preservation counseling among patients of reproductive age before initiating chemotherapy. Design, Setting, and Participants: This cross-sectional study used data obtained from the American Society of Clinical Oncology (ASCO) Quality Oncology Practice Initiative, an oncologist-led quality assessment program that surveys approximately 400 oncology practices biannually, from January, 2015, to June, 2019. Main Outcomes and Measures: The primary outcome was whether reproductive risks were discussed before initiation of chemotherapy. Multivariate logistic regression was performed to identify factors associated with fertility preservation counseling, controlling for age, sex, race/ethnicity, cancer type, year of study, region, clinic type (academic vs private), annual clinic volume, and rates of insurance coverage. Results: Among the 6976 patients of reproductive age (3571 men [51%]; mean (SD) age, 42.5 [7.1] years), with reproductive age ranging from 18 to 40 years for 3405 women and from 18 to 50 years for 3571 men, clinics reported that 3036 of 6976 patients (44%) received counseling regarding the risk of infertility associated with chemotherapy. Women were more likely to be informed (1912 of 3405 [56%]) compared with men (1126 of 3571 [32%]) (P < .001). Factors associated with reduced likelihood of fertility risk discussion included male sex (odds ratio [OR], 0.73; 95% CI, 0.60-0.90), increasing age (OR, 0.93; 95% CI, 0.92-0.94), private practice setting (OR, 0.70; 95% CI, 0.53-0.93), and lack of multidisciplinary team planning (OR, 0.54; 95% CI, 0.41-0.70). Factors associated with increased likelihood of fertility risk discussion included having breast cancer (OR, 1.39; 95% CI, 1.12-1.73) and lymphatic or hematopoietic cancers (OR, 1.79; 95% CI, 1.33-2.40), participating in each subsequent study year (OR, 1.16; 95% CI, 1.08-1.24), receiving care in an academic clinic (OR, 1.45; 95% CI, 1.05-2.01), and being a practice offering clinical trial enrollment (OR, 1.60; 95% CI, 1.13-2.29). States with legislatively mandated coverage of fertility preservation had significantly higher rates of fertility risk discussion compared with states without legislation (48.6% vs 39.6%, P < .001). Conclusions and Relevance: The findings suggest that clinicians are more likely to counsel younger patients and female patients about reproductive risks before initiation of chemotherapy. State laws mandating fertility preservation coverage may be associated with improved frequency of fertility counseling before chemotherapy. Further awareness and implementation of ASCO guidelines appear to be needed to improve rates of fertility risk discussion and referrals to fertility specialists before chemotherapy.


Subject(s)
Counseling/standards , Fertility Preservation/methods , Adult , Counseling/methods , Counseling/statistics & numerical data , Cross-Sectional Studies , Drug Therapy/methods , Drug Therapy/psychology , Female , Fertility Preservation/psychology , Fertility Preservation/standards , Humans , Logistic Models , Male , Medical Oncology/methods , Medical Oncology/standards , Medical Oncology/statistics & numerical data , Middle Aged , Surveys and Questionnaires , United States
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