Ovarian tissue cryopreservation in hematologic malignancy: ten years' experience

Area of Science:

• Reproductive Medicine
• Oncology
• Cryobiology

Background:

• Ovarian tissue cryopreservation is a fertility preservation strategy for patients facing sterilizing treatments like chemotherapy.
• Standardized clinical and laboratory guidelines are needed to optimize this procedure.
• Hematologic malignancies often necessitate fertility-compromising treatments.

Purpose of the Study:

• To evaluate the practice of ovarian tissue cryopreservation in female patients with hematologic malignancies over a 10-year period.
• To assess the feasibility and outcomes of ovarian tissue banking in this patient cohort.
• To provide recommendations for optimizing ovarian tissue banking procedures.

Main Methods:

• Retrospective review of patient records, consultation charts, and surgical/laboratory reports for 56 female patients with hematologic malignancies.
• Histological investigation of harvested ovarian tissue.
• Analysis of ovarian tissue cryopreservation and subsequent transplantation outcomes.

Main Results:

• Fifty-six patients (mean age 24 +/- 5.5 years) with various hematologic malignancies underwent ovarian tissue cryopreservation.
• Commonly diagnosed malignancies included Hodgkin's disease (33), non-Hodgkin's lymphoma (14), acute leukemia (6), and chronic myelocytic leukemia (3).
• Ovarian tissue harvesting occurred both before and after chemotherapy exposure (33 patients), with 13 undergoing it shortly after treatment.

Conclusions:

• Ovarian tissue cryopreservation is a viable option for fertility preservation in patients with hematologic malignancies, even after chemotherapy exposure.
• Individualized assessment of indications and timing for ovarian tissue banking is recommended.
• Careful consideration of follicle loss and sterilization risk, alongside tissue handling for further research, is essential.