Effect of Oocyte Retrieval from a Small Leading Follicle in Fixed-Schedulein vitroFertilization Program
| Autor: | Seiichiro Nagai, Shuji Hirata, Kaoruko Mizuno, Junzo Kato, Tsuyoshi Kasai, Takehiko Yasumizu |
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| Rok vydání: | 1997 |
| Předmět: |
Adult
endocrine system medicine.medical_specialty Menotropins medicine.medical_treatment Fertilization in Vitro Chorionic Gonadotropin Andrology Follicle Human fertilization Ovarian Follicle Pregnancy Internal medicine Follicular phase Humans Medicine In vitro fertilisation Estradiol business.industry Obstetrics and Gynecology Middle Aged Embryo Transfer medicine.disease Oocyte Endocrinology medicine.anatomical_structure Oocytes Female business hormones hormone substitutes and hormone antagonists Hormone |
| Zdroj: | Journal of Obstetrics and Gynaecology Research. 23:165-169 |
| ISSN: | 1341-8076 |
| DOI: | 10.1111/j.1447-0756.1997.tb00826.x |
| Popis: | Objective: To evaluate the propriety of oocyte retrieval (OR) from a small leading follicle during a fixed-schedule in vitro fertilization (IVF) program. Methods: OR was fixed only to take place on Wednesdays. Gonadotropin-releasing hormone agonist treatment was initiated on the first day of the cycle, human menopausal gonadotrophin was given for 7 days starting on the next Monday, and human chorionic gonadotrophin (hCG) was given on the Tuesday before the OR. Patients were divided into 2 groups according to the follicular size observed before the day of hCG administration: Group 1 (141 cycles), with follicles > 16 mm in mean diameter; and Group 2 (38 cycles) with follicles of 10 to 16 mm in mean diameter. Results: Fertilization rates and the incidence of mature oocytes were higher in Group 1 than in Group 2. However, the mean number of oocytes recovered and pregnancy rates were similar in the 2 groups. Conclusion: It is worthwhile to retrieve the oocyte from a small leading follicle in a fixed-schedule IVF program. |
| Databáze: | OpenAIRE |
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