title: Etonogestrel implant in postpartum adolescents: bleeding pattern, efficacy and discontinuation rate.
abstract: BACKGROUND
  The increasing rate of teenage pregnancies is a challenge to health professionals. New contraceptive methods have been developed to try to improve adherence in this group of patients. The study was conducted to evaluate the bleeding pattern, efficacy and discontinuation rate of etonogestrel implant (68 mg) inserted in postpartum adolescents.
  
  
  METHODS
  The study population comprised 44 postpartum adolescents managed at the Family Planning Sector of São Paulo Federal University. The implant was inserted, on average, 102 days after delivery. Patients were followed prospectively during four 90-day periods.
  
  
  RESULTS
  All 44 patients completed the 12 months of follow-up, resulting in a study discontinuation rate of 0%. No implants were removed. There were no pregnancies during the study. After 1 year of use, frequent and prolonged bleeding were reported by less than 5% of the patients and amenorrhea occurred in 38.6% of the users. Laboratory parameters indicated a significant increase in hemoglobin and hematocrit among users.
  
  
  CONCLUSIONS
  These findings suggest that the etonogestrel implant is a safe and effective contraceptive method that is well accepted by adolescents after a pregnancy.
authors: Department of Obstetrics and Gynecology, Family Planning Clinic, São Paulo Federal University (UNIFESP), São Paulo, Brazil. c.guazzelli@uol.com.br
authors: Cristina Ap F
authors: CA
authors: Guazzelli
authors: Flaviano Teixeira
authors: FT
authors: de Queiroz
authors: Marcia
authors: M
authors: Barbieri
authors: Maria Regina
authors: MR
authors: Torloni
authors: Fabio Fernando
authors: FF
authors: de Araujo
mesh_terms: D000293:Adolescent; D016009:Chi-Square Distribution; D003267:Contraception / Q000379:methods*; D003271:Contraceptive Agents, Female / Q000008:administration & dosage* / Q000009:adverse effects; D017135:Desogestrel / Q000008:administration & dosage* / Q000009:adverse effects; D004343:Drug Implants; D005260:Female; D006801:Humans; D006473:Postpartum Hemorrhage / Q000139:chemically induced / Q000209:etiology*; D049590:Postpartum Period; D011247:Pregnancy; D011446:Prospective Studies
chemical_list: D003271:Contraceptive Agents, Female; D004343:Drug Implants; C044815:etonogestrel; D017135:Desogestrel