| Autor: |
Wiker, Sharon R., Tucker, Michael J., Wright, Graham, Malter, Henry E., Kort, Hilton I., Massey, JoeB. |
| Zdroj: |
Human Reproduction; Mar1993, Vol. 8 Issue 3, p467-469, 3p |
| Abstrakt: |
When fertilization fails following micromanipulative underzona insemination, it is possible to repeat the procedure adding more spermatozoa to achieve fertilization, embryonic development and pregnancy. We report on 18 human in-vitro fertilization cycles where this approach was used. In nine cycles only late-fertilized embryos were available for transfer, and these gave rise to two viable pregnancies (22.2% per transfer). In six cycles, where a mixture of late- and timely fertilized embryos were available for transfer, two viable pregnancies arose (33.3% per transfer). In three cycles no fertilization was achieved even after reinsemination by repeated under-zona insemination. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
