Oocyte Cryopreservation for Fertility Preservation
Summary
Oocyte cryopreservation has evolved into a pivotal tool for safeguarding female reproductive potential, enabling women to defer childbearing without forfeiting their genetic fertility. Initially developed for medical indications—such as preserving fertility prior to gonadotoxic treatments—it has become increasingly adopted for elective, or “social,” reasons. Advances in vitrification techniques and optimised cryoprotectant protocols now yield higher survival rates and comparable developmental competence to fresh oocytes. Key determinants of success include patient age at retrieval, ovarian reserve biomarkers and stimulation strategies tailored to maximise mature oocyte yield. Worldwide uptake underscores its global significance, offering both biological insurance against age-related decline and autonomy in family planning. Ethical considerations and equitable access remain under scrutiny, as policymakers and clinicians weigh cost-effectiveness, counselling requirements and long-term outcomes.
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Oocyte Cryopreservation for Fertility Preservation publication trend
The graph below shows the total number of articles in oocyte cryopreservation for fertility preservation across all publications each year (not limited to Nature Index journals).
Technical terms
Vitrification: Ultra-rapid freezing method that prevents ice crystal formation by solidifying oocyte cytoplasm into a glass-like state.
Cryoprotectant: Chemical agent (e.g., dimethyl sulphoxide or ethylene glycol) that protects cells from freezing damage by reducing ice nucleation and osmotic stress.
Ovarian reserve: Functional capacity of the ovary, often assessed by biomarkers such as antral follicle count and anti-Müllerian hormone levels.
Anti-Müllerian hormone (AMH): Glycoprotein produced by granulosa cells; serves as a quantitative marker of remaining primordial follicles.
Live-birth rate: Proportion of initiated cycles or thawed oocyte cohorts resulting in the delivery of a live infant, used as a primary measure of clinical efficacy.
References
- The development and phase 1 evaluation of a Decision Aid for elective egg freezing. BMC Medical Informatics and Decision Making (2023).
- Who freezes her eggs and why? psychological predictors, reasons, and outcomes of social egg freezing. Reproductive Biology and Endocrinology (2025).
- Oocyte cryopreservation review: outcomes of medical oocyte cryopreservation and planned oocyte cryopreservation. Reproductive Biology and Endocrinology (2022).
- Usage and cost-effectiveness of elective oocyte freezing: a retrospective observational study. Reproductive Biology and Endocrinology (2022).
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