| Autor: |
Leerentveld, R. A., Zeilmaker, G. H., van der Stoep, M., Wladimiroff, J. W., de Jong, F.H., Alberda, A. Th. |
| Zdroj: |
Human Reproduction; Jun1987, Vol. 2 Issue 3, p187-190, 4p |
| Abstrakt: |
In 57 in-vitro fertilization (IVF) cycles stimulated with clomiphene citrate the relationship between plasma 17β-oestradiol (E) and ultrasonographic measurements of follicle diameter was assessed. Under both monofollicular and multifollicular conditions a wide range in plasma E values was observed in the late follicular phase. No significant correlation could be established between the dimensions of the dominant preovulatory follicle and plasma E values, in mono-follicular or multi-follicular cycles. Pregnancies and conceptions occurred in cycles with both low and high circulating E levels. In pregnancy cycles a slight increase in plasma E values was found on the day following administration of human chorionic gonadotrophin (HCG). In conceptional cycles not leading to a clinical pregnancy, plasma E profiles varied considerably, whereas in cycles in which no oocytes were fertilized, plateauing or a distinct decrease occurred during this particular period. The present study suggests that the relative daily increase in plasma E values may be the most relevant aspect of plasma E monitoring. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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