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Menstrual bleeding patterns in adolescents using etonogestrel (ENG) implant.
Amit M Deokar1, Wendy Jackson, Hatim A Omar
1Department of Pediatrics, Division of Adolescent Medicine, Kentucky Women's Health, University of Kentucky, Lexington, KY 40536, USA.
Summary
The Etonogestrel (ENG) implant is a highly effective 3-year contraceptive. However, menstrual irregularities are a common side effect, leading to removal in 22.4% of adolescent patients in this study.
Area of Science:
- Reproductive Medicine
- Adolescent Health
- Contraception
Background:
- The Etonogestrel (ENG) implant offers long-acting contraception for up to three years.
- Fertility typically returns quickly after ENG implant removal.
- Menstrual irregularities are a known side effect of progestin-based contraceptives and a frequent reason for discontinuation.
Purpose of the Study:
- To analyze the incidence and management of menstrual irregularities in adolescent patients using the ENG implant.
- To evaluate the impact of menstrual problems on the continuation of ENG implant use.
Main Methods:
- Retrospective chart analysis of 58 adolescent patients (ages 12-24) who received the ENG implant.
- Review of patient symptoms, management strategies, and reasons for implant removal.
- Data collected from the Adolescent Medicine Clinic at the University of Kentucky.
Main Results:
- The mean duration of ENG implant use was 10.9 months.
- Over a 20-month period, 13 out of 58 patients (22.4%) had their ENG implants removed due to menstrual bleeding problems.
- Menstrual cycle irregularities were the primary reason for removal in this cohort.
Conclusions:
- The ENG implant is highly effective for contraception when used as indicated.
- Menstrual irregularities associated with the ENG implant can be significant and lead to early removal.
- Clinicians must counsel patients on potential menstrual side effects of the ENG implant.
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