Patterns of serum-luteinizing hormone surges in stimulated cycles in relation to injections of human chorionic gonadotropin
| Autor: | Robert Fischer, Vera Baukloh, Heinz-G. Bohnet, Olaf G.J. Naether |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
endocrine system
medicine.medical_specialty Menotropins medicine.drug_class media_common.quotation_subject medicine.medical_treatment Radioimmunoassay Fertilization in Vitro Luteal phase Biology Luteal Phase Chorionic Gonadotropin Human chorionic gonadotropin Clomiphene Injections Pregnancy Internal medicine Follicular phase medicine Humans Ovulation Menstrual cycle media_common In vitro fertilisation Estradiol Obstetrics and Gynecology Antibodies Monoclonal Luteinizing Hormone Embryo Transfer Menstruation Endocrinology Reproductive Medicine Follicular Phase Oocytes Female Gonadotropin Hormone |
| Zdroj: | Fertility and sterility. 53(1) |
| ISSN: | 0015-0282 |
| Popis: | Endogenous-luteinizing hormone (LH) surges may complicate the management of in vitro fertilization cycles. To investigate the effects of LH surges after hormonal stimulation 53 IVF cycles were analyzed by assessing LH levels three times daily until egg collection. In 43% the LH rise started before the planned exogenous trigger for ovulation was given, in 11% the rise occurred simultaneously with and in 45% after the injection of human chorionic gonadotropin. Three main patterns of serum LH surges were identified: (A) low-LH tonus with straight increase to maximum; (B) low tonus with elevation before straight increase; (C) high tonus with large variations but no prominant peak. These patterns were not related to the follicular estradiol increase, luteal steroid concentrations or resulting pregnancy rates. |
| Databáze: | OpenAIRE |
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