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Related Experiment Video

Updated: Mar 14, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

6.8K

Fresh versus cryopreserved oocyte donation.

Vitaly A Kushnir1, Norbert Gleicher

  • 1aThe Center for Human Reproduction, New York, New York bWake Forest School of Medicine, Winston-Salem, North Carolina cFoundation for Reproductive Medicine dThe Rockefeller University, New York, New York, USA.

Current Opinion in Endocrinology, Diabetes, and Obesity
|September 28, 2016
PubMed
Summary
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Cryopreserved donor oocytes are increasingly used, but current data are insufficient to prove they are as effective as fresh donor oocytes. Caution and informed consent are advised due to lower live birth rates and incomplete safety data.

Area of Science:

  • Reproductive Medicine
  • Cryobiology
  • Oocyte Donation

Background:

  • The use of cryopreserved donor oocytes has significantly increased.
  • Concerns exist regarding the comparability of treatment outcomes between fresh and cryopreserved donor oocytes.

Purpose of the Study:

  • To evaluate the current status and outcomes of using cryopreserved donor oocytes compared to fresh donor oocytes.
  • To assess the safety and ethical considerations of cryopreserved oocyte donation.

Main Methods:

  • Review of national data on oocyte donation cycles in the USA (2013-2014).
  • Analysis of live birth rates, miscarriage rates, and neonatal health outcomes.
  • Examination of logistical, cost, and ethical implications.

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Related Experiment Videos

Last Updated: Mar 14, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

6.8K
Minimum Volume Vitrification of Immature Feline Oocytes
07:16

Minimum Volume Vitrification of Immature Feline Oocytes

Published on: June 24, 2020

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Fertility Preservation in Patients with Severe Ovarian Dysfunction
12:03

Fertility Preservation in Patients with Severe Ovarian Dysfunction

Published on: March 25, 2021

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Main Results:

  • Over 24% of US oocyte donation cycles involved cryopreserved oocytes.
  • Cryopreserved oocytes may simplify logistics and reduce per-cycle costs but result in lower live birth rates.
  • Comprehensive national data on safety outcomes (miscarriage, neonatal health) are lacking.

Conclusions:

  • Current data are insufficient to establish equivalency between fresh and cryopreserved donor oocytes.
  • Patients need counseling on the pros and cons of both methods, with cautious use of cryopreserved oocytes.
  • Oocyte banking raises ethical concerns regarding commercialization and the principles of donation.