Glossary

• Author: Maureen McTeer
• Pages: 243-246

[  ]

Glossary

* All denitions are from Fernando Zegers-Hochschild et al, he International

Glossary on Infertility and Fertility Care, 2017 () : Human Reproduction

–, online: https://secureservercdn.net/.../

nz..myftpupload.com/wp-content/uploads/-HR-Glossary.pdf.

Assisted reproductive technology (ART). All interventions that include

the in vitro handling of both human oocytes and sperm or of embryos

for the purpose of reproduction. is includes, but is not limited to, IVF

and embryo transfer ET; intracytoplasmic sperm injection ICSI; embryo

biopsy; preimplantation genetic testing PGT; assisted hatching; gamete

intrafallopian transfer GIFT; zygote intrafallopian transfer; gamete and

embryo cryopreservation; semen, oocyte, and embryo donation; and ges-

tational carrier cycles. us, ART does not, and ART-only registries do

not, include assisted insemination using sperm from either a woman’s

partner or a sperm donor.

Blastocyst. e stage of preimplantation embryo development that

occurs around day – after insemination or ICSI. e blastocyst con-

tains a uid-lled central cavity (blastocoele), an outer layer of cells (tro-

phectoderm), and an inner group of cells (inner cell mass).

Congenital anomalies. Structural or functional disorders that occur dur-

ing intra-uterine life and can be identied prenatally, at birth, or later in

life. Congenital anomalies can be caused by single gene defects, chromo-

somal disorders, multifactorial inheritance, environmental teratogens, and

micronutrient deciencies. e time of identication should be reported.

Cryopreservation. e process of slow freezing or vitrication to pre-

serve biological material (e.g., gametes, zygotes, cleavage-stage embryos,

blastocysts, or gonadal tissue) at extreme low temperature.