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Prediction of ovulation.

J Grinsted¹, J D Jacobsen, L Grinsted

¹Department of Obstetrics and Gynecology, Central Hospital, Hillerød, Denmark.

Fertility and Sterility

|September 1, 1989

Summary

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Predicting ovulation is crucial for infertility treatment. Urinary luteinizing hormone (LH) peak detection offers the highest predictive values, with combined methods improving accuracy.

Area of Science:

Reproductive endocrinology
Medical diagnostics

Background:

Accurate ovulation prediction is vital for infertility management.
Various diagnostic methods exist, but their predictive accuracy varies.

Purpose of the Study:

To evaluate the sensitivity, specificity, and predictive values (PVP, PVN) of ovulatory diagnostics.
To identify the most reliable methods for predicting ovulation.

Main Methods:

Inclusion of 21 ovulatory women with infertility.
Assessment of urinary luteinizing hormone (LH) peak, serum estradiol peak, vaginal electric impedance, and basal body temperature.
Evaluation of predictive values for each diagnostic method.

Main Results:

Urinary LH peak (PVP=90%, PVN=95%) and serum estradiol peak (PVP=83%, PVN=97%) showed the highest predictive values.

Related Experiment Videos

Vaginal electric impedance had lower predictive values (PVP=54%, PVN=90%) but predicted all ovulations when combined with urinary LH peak.

Basal body temperature had poor predictive value (PVP=25%).

Conclusions:

Urinary LH peak detection is the primary recommended method for ovulation prediction.
Combining urinary LH peak with other methods, like vaginal impedance, can enhance prediction accuracy.
Basal body temperature is not recommended for ovulation prediction.