Intracytoplasmic sperm injection improving embryo quality : Comparison of the sibling oocytes of non-male-factor couples

Intracytoplasmic sperm injection improving embryo quality : Comparison of the sibling oocytes of non-male-factor couples

Our objective was to investigate whether the quality of embryos developed after intracytoplasmic sperm injection (ICSI) is better than that of conventional IVF embryos. Nine couples who previously achieved a normal rate of fertilization following IVF and four couples whose normal rate of fertilizati...

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Bibliographic Details
Published in:Journal of assisted reproduction and genetics Vol. 13; no. 4; pp. 351 - 355
Main Authors: DUNSONG YANG, SHAHATA, M. A, MOOZA AL-BADER, AL-NATSHA, S. D, AL-FLAMERZIA, M, TALHA AL-SHAWAI
Format: Journal Article
Language:English
Published: New York, NY Kluwer/Plenum 01-04-1996
Subjects:
Adult
Biological and medical sciences
Birth control
Embryo Transfer
Embryo, Mammalian - physiology
Female
Fertilization in Vitro - methods
Gynecology. Andrology. Obstetrics
Humans
Male
Medical sciences
Microinjections
Oocytes
Pregnancy
Spermatozoa
Sterility. Assisted procreation
Human
Embryo
Microinjection
Prognosis
Intracytoplasmic sperm injection
Quality
Assisted procreation
Micromanipulation
Fecundation
In vitro
Comparative study
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Summary:Our objective was to investigate whether the quality of embryos developed after intracytoplasmic sperm injection (ICSI) is better than that of conventional IVF embryos. Nine couples who previously achieved a normal rate of fertilization following IVF and four couples whose normal rate of fertilization was expected were involved in this study. The oocytes from those couples were randomly divided into two groups, group A by conventional insemination and group B by ICSI. The fertilization rate and quality of embryos were compared. Normal fertilization was achieved in 61% of the oocytes (83/136) after conventional insemination. In group B, 69% of the oocytes (99/144) achieved normal fertilization, although only 127 metaphase II oocytes were injected using the ICSI technique. More grade A embryos were obtained when the ICSI technique was used for fertilization than by conventional IVF (35.4 and 24.3%, respectively; P = 0.028). A similar fertilization rate can be achieved by ICSI in comparison with conventional IVF, when male factor is not involved. Embryos after ICSI have an improved quality.
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ISSN:1058-0468
1573-7330
DOI:10.1007/BF02070151