Abstract
The preovulatory luteinizing hormone (LH) surge (mean, 60.7 standard error +/- 4.7 mIU/ml) as determined by a solid-phase enzymeimmunoassay in urine has been correlated with clinical parameters in 24 women. In group A, of seven women, the preovulatory LH surge correlated with basal body temperature and cervical mucus. In one of the women in group A, serum levels of pituitary and gonadal hormones confirmed ovulation. In group B, of 17 women, the urinary estrone-3-glucuronide (E1-3-G) peak was either coincident with or preceded the LH surge. The LH surge in all cases occurred 12 to 24 hours prior to follicular rupture, as visualized by real-time sonography. The enzymeimmunoassay for the detection of the preovulatory LH surge is useful in patients for artificial insemination and for aspiration of mature oocytes for in vitro fertilization.
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