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[Densitometry findings in women using gestagen contraception]
M Buzga1, V Smajstrla, L Bortlík
1Ustav fyziologie a patofyziologie FZS OU, Ostrava. marek.buzga@osu.cz
Ceska Gynekologie
|January 21, 2011
Summary
Gestagen contraception may negatively impact bone density, particularly in women with a low body mass index (BMI). Further research is needed to fully understand this relationship and its clinical implications for skeletal health.
Area of Science:
- Endocrinology
- Bone Metabolism
- Reproductive Health
Context:
- Gestagen-based contraceptives are widely used by premenopausal women.
- Potential skeletal side effects of hormonal contraceptives require investigation.
- Bone mineral density (BMD) assessment is crucial for evaluating skeletal health.
Purpose:
- To investigate the influence of gestagen contraception on bone mass.
- To examine the relationship between body mass index (BMI) and bone density in users of gestagen contraception.
- To assess bone mineral density using dual-energy x-ray absorptiometry (DEXA).
Summary:
- A cross-sectional study included premenopausal women using gestagen contraception (Depo-Provera) for at least one year.
- Bone density was measured using a Hologic W densitometer, assessing Z-scores at the lumbar spine, whole femur, and femoral neck.
- 58 out of 116 patients exhibited normal bone density, while 58 showed reduced bone density, with 11 having Z-scores below -2.5 SD.
Impact:
- An inverse relationship was found between BMI and bone density (BMD), with lower BMI correlating with decreased BMD (p=0.0001 for both Z-score and T-score).
- The duration of gestagen use did not show a statistically significant correlation with bone density.
- The findings suggest that the potential negative effects of gestagen contraception on bone health, especially in women with low BMI, should be considered during prescription.
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