Autotransplantation of Cryopreserved/Thawed Ovarian Tissue: Overview of Methods and Challenges
Abstract
In recent years, an increasing number of women diagnosed with malignant or non-malignant diseases have been subjected to cytotoxic chemoradiotherapy. Women who face the possibility of premature or imminent ovarian failure caused by cytotoxic therapy may retain their fertility potential via ovarian tissue cryopreservation. Despite its advantages, this fertility preservation method for women at risk of losing reproductive function is considered experimental due to 1) a possible decrease in the ovarian follicular pool as a result of cryopreservation and thawing procedures (although this has been minimised by improved methods), or by ischemic damage occurring during ovarian transplantation; and 2) the risk of minimal residual disease (which is the most important factor). Although the indications for ovarian cryopreservation now extend beyond cancer, cancer survivors remain as the patient population who most commonly need this procedure. For these patients, the risk of minimal residual disease, which can be defined as reintroducing pre-existing cancer cells, is an important challenge for the application of this method. Even though the risk of reimplanting pre-existing cancer cells through ovarian transplantation is minimal or non-existent for most types of cancer, this risk must be ascertained according to cancer type and disease stage.
Keywords
References
- 1- American Cancer Society. Special section: obesity. Cancer Facts and Figures 2001. 1st ed. Atlanta GA: National Media Office; 2001. p.20-7.
- 2. Blatt J. Pregnancy outcomes in long-term survivors of childhood cancer. Med Pediatr Oncol 1999; 33:29-33.
- 3. Bedaiwy MA, Shahin AY, Falcone T. Reproductive organ transplantation: advances and controversies. Fertil Steril 2008; 90:2031-55.
- 4. Howell SJ, Sharlet SM. Fertility preservation and management of gonadal failure associated with lymphoma therapy. Curr Oncol Rep 2002; 4:443-52.
- 5. Ethics Committee of the American Society for Reproductive Medicine. Fertility preservation and reproduction in cancer patients. Fertil Steril 2005; 83:1622-8.
- 6. Donnez J, Dolmans MM, Demylle D, et al. Livebirth after orthotopic transplantation of cryopreserved ovarian tissue. Lancet 2004; 364:1405-10.
- 7. Meirow D, Levron J, Eldar-Geva T, et al. Pregnancy after transplantation of cryopreserved ovarian tissue in a patient with ovarian failure after chemotherapy. N Engl
- J Med 2005; 353:318-21.
Details
Primary Language
Turkish
Subjects
Health Care Administration
Journal Section
Review
Authors
Hulya Ayik
*
0000-0002-3028-7247
Türkiye
Yasemin Goksu Erol
Türkiye
Armagan Aydin
0000-0001-8749-9825
Türkiye
Publication Date
March 20, 2019
Submission Date
January 2, 2019
Acceptance Date
February 26, 2019
Published in Issue
Year 2019 Volume: 9 Number: 1