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Oocyte cryopreservation in oncological patients
Eleonora Porcu1, Raffaella Fabbri, Giuseppe Damiano
1Department of Obstetrics and Gynecology, Infertility and IVF Centre, University of Bologna, Via Massarenti 13, 40138 Bologna, Italy. porcu@med.unibo.it
Abstract:
The use of chemotherapy and radiotherapy in oncological patients may reduce their reproductive potential. Sperm cryopreservation has been already used in men affected by neoplastic disease. Oocyte cryopreservation might be an important solution for these patients at risk of losing ovarian function. A program of oocyte cryopreservation for oncological patients is also present in our center. From June 1996 to January 2000, 18 patients awaiting chemotherapy and radiotherapy for neoplastic disease were included in our oocyte cryopreservation program. Our experience documents that oocyte storage may be a concrete and pragmatic alternative for oncological patients. The duration of oocyte storage does not seem to interfere with oocyte survival as pregnancies occurred even after several years of gamete cryopreservation in liquid nitrogen.
Insights
Oocyte cryopreservation offers a viable fertility preservation option for cancer patients undergoing chemotherapy or radiotherapy. Stored eggs remain viable for conception even after several years in liquid nitrogen.
Area of Science:
- Reproductive Medicine
- Oncology
- Cryobiology
Background:
- Chemotherapy and radiotherapy can impair reproductive potential in cancer patients.
- Sperm cryopreservation is established for male cancer patients.
- Ovarian function loss is a risk for female cancer patients undergoing treatment.
Purpose of the Study:
- To evaluate the efficacy of oocyte cryopreservation for oncological patients.
- To assess the feasibility of fertility preservation in women undergoing cancer treatment.
Main Methods:
- Oocyte cryopreservation program for 18 patients awaiting cancer treatment (June 1996 - January 2000).
- Patients received chemotherapy and/or radiotherapy post-oocyte cryopreservation.
Main Results:
- Oocyte cryopreservation demonstrated to be a practical fertility preservation method.
- Pregnancies were achieved after several years of oocyte storage.
- Storage duration did not negatively impact oocyte survival rates.
Conclusions:
- Oocyte cryopreservation is a pragmatic and effective fertility preservation strategy for oncological patients.
- Long-term oocyte storage in liquid nitrogen is feasible and successful for achieving pregnancies.
