Assisted zona hatching
Assisted zona hatching (AZH) is a procedure of
Assisted reproductive technology, increasing the chances of pregnancy[http://www.ivf-infertility.com/ivf/hatching.php IVF-infertility.com] ] .
blastocystperforms zona hatching, getting rid of the surrounding zona pellucida, to be able to implant in the uterus. However, sometimes this zona pellucida is toughened, disabling the emrbyo to hatch. In these cases, AZH is needed.
A small hole is made in the zona pellucida, using a micromanipulation. This facilitates zona hatching to occur.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Zona hatching — is a phenomenon occurring during prenatal development. Prior to this event, the predecessor of the embryo, in the form of a blastocyst, is surrounded by a glycoprotein sphere called the zona pellucida. To be able to perform implantation on the… … Wikipedia
Assisted reproductive technology — (ART) is a general term referring to methods used to achieve pregnancy by artificial or partially artificial means. It is reproductive technology used in infertility treatment, which is the only application routinely used today of reproductive… … Wikipedia
Infertility — See also: Female infertility, Male infertility, and Sterility (physiology) Infertility Classification and external resources ICD 10 N46, N97.0 … Wikipedia
Oocyte cryopreservation — ICSI sperm injection into oocyte Human oocyte cryopreservation (egg freezing) is a novel technology in which a woman’s eggs (oocytes) are extracted, frozen and stored. Later, when she is ready to become pregnant, the eggs can be thawed,… … Wikipedia
Surrogacy — is an arrangement in which a woman carries and delivers a child for another couple or person. This woman may be the child s genetic mother (called traditional surrogacy), or she may carry the pregnancy to delivery after having an embryo, to which … Wikipedia
Egg donation — Intervention MeSH D018587 Egg donation is the process by which a woman provides one or several (usually 10 15) eggs (ova, oocytes) for purposes of assisted reproduction or biomedical research. For assisted reproduction purposes, egg d … Wikipedia
Sperm donation — is the provision (or ‘donation’) by a man, (known as a ‘sperm donor’), of his sperm, with the intention that it be used to impregnate a woman who is not usually the man s sexual partner, in order to produce a child. A sperm donor is the natural… … Wikipedia
Ovarian hyperstimulation — (also called controlled ovarian hyperstimulation) is where a regimen of fertility medications are used to stimulate the development of multiple follicles of the ovaries in one single cycle, resulting in superovulation (release of a larger than … Wikipedia
Ovulation induction — Intervention MeSH D010062 Ovulation induction is the stimulation of ovulation by medication. It is usually used in the sense of stimulation of the development of ovarian follicles … Wikipedia
Embryo transfer — Intervention 8 cell embryo for transfer 3 days after fertilization MeSH … Wikipedia