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Chapter 36 - Cryopreservation of Pre-compaction Embryos for IVF

from Section 7 - Embryo Cryopreservation

Published online by Cambridge University Press:  07 August 2023

By
Cecilia Sjöblom
Edited by
Markus H. M. Montag  and
Dean E. Morbeck
Markus H. M. Montag
Affiliation:
ilabcomm GmbH, St Augustin, Germany
Dean E. Morbeck
Affiliation:
Kindbody Inc, New York City
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Summary

Improvement in the success of cryopreservation has increased the use of human embryos produced from ovarian hyper-stimulation and in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). High survival and implantation rates of frozen–thawed embryos have allowed for a decrease in the number of embryos transferred and even made way for a modern ‘freeze all’ approach, where all embryos derived from a fresh cycle are frozen and transferred in a subsequent frozen embryo transfer cycle. In recent years, cryopreservation has evolved to include vitrification, with many laboratories preferring this sometimes faster method, which also requires less complex equipment. However, slow freezing can often be more successful, cost-effective and faster than vitrification, particularly in zygotes and cleavage-stage embryos. For most vitrification approaches, the process is the same, independent of the embryo’s stage of development. Blastocyst vitrification can be applied for cleavage-stage embryos, and this chapter will focus on slow freezing of pre-compaction embryos.

Keywords

cryopreservationcleavage stagestorage
Type
Chapter
Information
Principles of IVF Laboratory Practice
Laboratory Set-Up, Training and Daily Operation
 , pp. 263 - 270
Publisher: Cambridge University Press
Print publication year: 2023

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References

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