Clinical aspects with regard to the occurrence of an endogenous luteinizing hormone surge in gonadotropin-induced normal menstrual cycles
| Autor: | Zev Rosenwaks, Jairo E. Garcia, Hung C. Liu, Jan F.H.M. van Uem |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Ovulation
endocrine system Embryology medicine.medical_specialty Menotropins medicine.drug_class medicine.medical_treatment media_common.quotation_subject Endogeny Biology Chorionic Gonadotropin Human chorionic gonadotropin Internal medicine Genetics medicine Humans reproductive and urinary physiology Genetics (clinical) media_common In vitro fertilisation Estradiol Obstetrics and Gynecology General Medicine Luteinizing Hormone Menstruation Endocrinology Reproductive Medicine Estrogen Pituitary hormones Female Laparoscopy Gonadotropin Luteinizing hormone hormones hormone substitutes and hormone antagonists Developmental Biology |
| Zdroj: | Journal of in vitro fertilization and embryo transfer : IVF. 3(6) |
| ISSN: | 0740-7769 |
| Popis: | A decline in serum E2 the day before laparoscopy indicated that ovulation had occurred in 16 cycles stimulated with exogenous gonadotropins for the purpose of in vitro fertilization (IVF). In contrast to 18 control cycles with rising E2 values after human chorionic gonadotropin (hCG) administration and without evidence of ovulation, the onset of the endogenous luteinizing hormone (LH) surge had been initiated. From this study, it is believed that the onset of an endogenous LH surge can be identified by the terminal preovulatory E2 pattern. Further, the incidence of an endogenous LH surge in gonadotropin-induced menstrual cycles and the present clinical approach of the Norfolk IVF program to this phenomenon are discussed. |
| Databáze: | OpenAIRE |
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