Use of cryopreserved ovarian tissue in the Danish fertility preservation cohort

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  • Stine Gry Kristensen
  • Yu Wakimoto
  • Lotte Berdiin Colmorn
  • Margit Dueholm
  • Susanne Elisabeth Pors
  • Kirsten Tryde Macklon
  • Linn Salto Mamsen
  • Dmitry Nikiforov
  • Jesús Cadenas
  • Vinnie Hornshøj Greve
  • Anne-Mette Bay Bjørn
  • Mikkel Rosendahl
  • Pedersen, Anette Tønnes
  • Anders Nyboe Andersen
  • Jens Fedder
  • Erik Ernst
  • tcg964, tcg964

OBJECTIVE: To evaluate the use of cryopreserved ovarian tissue in the Danish fertility preservation cohort.

DESIGN: Retrospective cohort study.

SETTING: University hospitals and fertility clinics.

PATIENT(S): Ovarian tissue cryopreservation (OTC) was performed for 1,186 Danish girls and women from 1999-2020, of whom 117 subsequently underwent ovarian tissue transplantation (OTT). Subgroup 1 included 759 patients with a follow-up period of >5 years. Out of these, OTT rates were further analyzed for those patients who were alive and aged >24 years in July 2020 (subgroup 2; n = 554).


MAIN OUTCOME MEASURE(S): OTT, death, donation of tissue.

RESULT(S): In subgroup 1, 14% of the patients had undergone OTT, 18% had died, 9% had donated their tissue for research, and 59% still had their tissue stored. In subgroup 2, 19% had undergone OTT and for most diagnoses the OTT rates ranged from 15% to 22% with benign hematologic diseases having the highest OTT rate (35%). On the basis of the entire cohort, stratified age analysis indicated that women aged ≥30 years at OTC were more likely to return for OTT than women aged 18-29 years at OTC; mean storage times were 3.7 and 3.6 years, respectively. Only 4% of the girls aged <18 years at OTC had undergone OTT.

CONCLUSION(S): The OTT rates depended on the diagnosis, age at OTC, and follow-up time. Specific criteria are needed for reporting and comparing OTT rates. Six out of 10 patients still had their cryopreserved tissue stored and longer follow-up is needed, especially for younger girls.

TidsskriftFertility and Sterility
Udgave nummer4
Sider (fra-til)1098-1106
Antal sider9
StatusUdgivet - 2021

Bibliografisk note

Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.

ID: 288856662