| Autor: |
G, Ertzeid, P O, Dale, T, Tanbo, R, Storeng, E, Kjekshus, T, Abyholm |
| Rok vydání: |
1999 |
| Předmět: |
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| Zdroj: |
Journal of assisted reproduction and genetics. 16(10) |
| ISSN: |
1058-0468 |
| Popis: |
The objective was to evaluate whether extending the embryo culture period from 2 to 3 days would yield a more optimal selection of viable embryos, thereby increasing the implantation and live birth rates.Patients undergoing in vitro fertilization with at least one oocyte fertilized were prospectively randomized to 2 or 3 days of embryo culture in serum-free media. On the basis of their morphology and cleavage rate, a maximum of three embryos was selected for transfer.Embryos transferred on day 2 or day 3 were similar morphologically, however, a higher proportion of retarded embryos was observed on day 3. The implantation rate was 15.8 and 14.3% for day 2 and day 3 transfers, respectively. The increase in live birth rate from 18.5 to 22.6%, possibly suggesting a better embryo selection on day 3, was not statistically significant.Extending the embryo culture period from 2 to 3 days had no effect on implantation and live birth rates. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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