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Relationship between sonographic endometrial thickness and progestin-induced withdrawal bleeding
1Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, Japan.
Obstetrics and Gynecology
|May 1, 1996
Summary
Endometrial thickness measured by ultrasound can accurately predict progestin-induced withdrawal bleeding in women with secondary amenorrhea. This sonographic measurement is a reliable predictor, simplifying diagnosis.
Area of Science:
- Reproductive Endocrinology
- Diagnostic Imaging
Background:
- Secondary amenorrhea affects women's reproductive health.
- The progestin challenge test is used to evaluate withdrawal bleeding.
- Predicting this response is crucial for diagnosis and management.
Purpose of the Study:
- To assess if sonographically measured endometrial thickness predicts progestin challenge test response.
- To compare endometrial thickness and serum estradiol in predicting withdrawal bleeding.
Main Methods:
- 44 women with secondary amenorrhea underwent progestin challenge tests.
- Endometrial thickness was measured via transvaginal ultrasonography.
- Serum estradiol levels were determined concurrently.
Main Results:
- Women with withdrawal bleeding had significantly thicker endometria (10.3 mm) than those without (5.0 mm).
- Endometrial thickness ≥ 6.0 mm predicted bleeding with 95.5% accuracy.
- Endometrial thickness outperformed serum estradiol in predicting withdrawal bleeding.
Conclusions:
- Sonographically measured endometrial thickness reliably predicts progestin-induced withdrawal bleeding.
- Ultrasound offers a superior, non-invasive method for predicting this gynecological response.