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Revista chilena de obstetricia y ginecología

versión On-line ISSN 0717-7526

Resumen

LEAL F, Ingrid et al. Patrón de sangrado uterino en adolescentes usuarias de implante anticonceptivo subdérmico de etonogestrel. Rev. chil. obstet. ginecol. [online]. 2016, vol.81, n.6, pp.489-495. ISSN 0717-7526.  http://dx.doi.org/10.4067/S0717-75262016000600006.

Objectives: To describe uterine bleeding patterns of adolescents using the long term etonogestrel contraceptive implant (ENG implant) attending a specialized adolescent sexual and reproductive health centre in Santiago, Chile, and test their association with bio-psychosocial variables. Methods: A retrospective cohort study of ENG implant users was conducted and data were analysed using the Generalized Estimating Equation, Kaplan Meier Survival Analysis and Log-Rank Test. Results: The cohort included 62 adolescents with and average age at inclusion of 16.2 years. Participants received contraceptive counselling prior to insertion of an ENG implant, and were followed up for three years. The most frequent bleeding patterns during the first year were amenorrhea (40.5%) and acceptable bleeding (27.1%), whilst the least frequent was prolonged and/or frequent bleeding (15.8%). According to the survival analysis, the only bio-psychosocial variable associated with prolonged and/or frequent bleeding was prior medical condition. Five adolescents (8%) withdrew from the treatment. Conclusions: The ENG implant is a safe and highly effective contraceptive option for adolescents, regardless of parity. Counselling is of great importance to foster tolerance and adherence to the ENG implant.

Palabras clave : Implantes anticonceptivos; servicios de salud para adolescentes; salud reproductiva; Contraception; contraceptive implants; adolescent health services; reproductive health.

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