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Terminology

IUI: Intrauterine insemination. Sperm is specially prepared and inserted into the cavity of the uterus after ovulation induction. Useful for treating unexplained infertility or mild decreases in the sperm count.

IVF: In vitro fertilization. The eggs are obtained from the ovaries and are then fertilized at the laboratory. The embryos on day 3 or day 5 are transferred to the uterus. The pregnancy rate is up to about 50% per cycle of treatment.

ET: Embryo transfer. Unless otherwise qualified, refers to transfer of embryos through the vagina and cervix into the uterus.

Blastocyst: The first stage in which embryo differentiation is observed, is the blastocyst stage. Embryos reach that stage 5-6 days after egg retrieval. In "natural pregnancy" the embryo reaches the uterus at this stage. In some cases (e.g patients after repeated IVF failure), up to the blastocyst stage culture should be considered.

Cryo-ET: Cryostored-embryo-transfer. Transfer of embryos that have been derived in a previous IVF cycle and stored frozen in liquid nitrogen.

ICSI: Intracytoplasmic sperm injection. A type of IVF in which single sperm cells are injected into the soft center of the egg using special micromanipulation equipment. A treatment for extremely low sperm counts and in age group after 38 years. Can be used with male microsurgery in cases of complete absence of sperm when there is an obstruction or in more and more cases, when there is a "maturation arrest" within the testicles. Pregnancy rates are the same as for IVF.

Hatching: Cutting a "hole" in the "zona pellucida", from which the embryo will hatch after being transferred to the uterus. This procedure is considered for embryos with thick "zonas", or for patients around 40 years of age and for cryoembryotransfer.

MESA: Microsurgical epididymal sperm aspiration. Obtaining immature sperm cells from the epididymis (which joins the testicle to the vas), in cases where obstruction in the genital tract leads to absence of sperm in the ejaculate. The recovered sperm can be used for ICSI, either immediately or after cryostorage.

TESA: Testicular sperm aspiration is a surgical procedure to obtain sperm from within the testicular tissue in azoospermic patients. 

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13/08 2009

Cooperation with foreign sperm banks.

FOTOGALLERY

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