Infertility Anovulation IVF Male Factor Tubal Factor Unexplained


Fertil Steril. 2005 May;83(5):1510-6.

Women with ovulatory dysfunction undergoing ovarian stimulation with clomiphene citrate for intrauterine insemination may benefit from administration of human chorionic gonadotropin. Vlahos NF ,Coker L,Lawler C,Zhao Y,Bankowski B,Wallach EE.

The Johns Hopkins Hospital, Baltimore, Maryland 21287, USA. nvlahos@jhmi.edu

Objectives:

To investigate factors that may affect pregnancy outcome following ovarian stimulation with clomiphene citrate (CC) combined with intrauterine insemination (IUI).

Design:

Retrospective cohort study.

Setting:

University teaching hospital.

Patients:

Three hundred and twenty women who underwent 691 ovarian stimulation cycles with CC for IUI.

Intervention(s):

Ovarian stimulation with CC followed by a single IUI either 24 hours after a spontaneous serum LH surge (>25 mIU/mL) or 36 hours after intramuscular human chorionic gonadotropin (hCG) administration (10,000 IU) when the largest follicle had reached a diameter of 17 mm.

Settings, Design and Main Outcome Measures:

Clinical pregnancies.

Result(s):

Women with ovulatory dysfunction who received hCG had significantly higher pregnancy rates (24.6%) compared with women with other types of infertility. There were no differences in pregnancy rates between the LH surge group and the hCG group (14.3% vs 12.4%). A spontaneous LH surge was noted in a variety of follicular sizes (14 to 35 mm). There was no correlation for age, body mass index, follicular diameter, number of mature follicles, other sperm characteristics, and pregnancy outcome in either group.

Conclusion(s):

After ovarian stimulation with CC, IUI is e qually effective 24 hours after a spontaneous LH surge or 36 hours after administration of hCG. Spontaneous LH surges were observed at a variety of follicular sizes with comparable pregnancy rates. In women with ovulatory dysfunction, hCG administration before insemination may be beneficial.





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