Author/Editor | Reljič, Milan; Vlaisavljević, Veljko | |
Title | The preovulatory serum estradiol pattern in natural IVF/ICSI cycles | |
Type | članek | |
Source | J Assist Reprod Genet | |
Vol. and No. | Letnik 16, št. 10 | |
Publication year | 1999 | |
Volume | str. 535-9 | |
Language | eng | |
Abstract | Purpose: The aim of the study was to find whether inferences to the possible success of natural IVF/ICSI cycles could be drawn from the estradiol (E2) pattern. Methods: Sixty-eight women who underwent oocyte recovery in 98 natural cycles were recruited for the study. Daily serum E2 was measured in the preovulatory phase (-3 to +2 day). The E2 pattern was compared among four groups: Group A, unsuccessful egg retrieval; Group B, no fertilization; Group C, no implantation; and Group D, implantation. Results: There was no difference in mean E2 levels between groups. Only the ratio of E2 on day +1/E2 on day 0 was significantly lower in conception cycles in comparison with nonconception cycles. In cycles with a decreased E2 level on day +1, only the implantation rate was significantly higher in comparison with cycles with an increasing E2 level. Conclusion: From the E2 pattern it is possible to make inferences about the likelihood of implantation but not the fertilization or oocyte recovery success. | |
Descriptors | ESTRADIOL OVUM IMPLANTATION SPERMATOZOA ADULT OVULATION TIME FACTORS FERTILIZATION IN VITRO |