Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/77919
Type: Artigo de periódico
Title: Timing of onset of contraceptive effectiveness in Depo-Provera users. II. Effects on ovarian function
Author: Petta, CA
Faundes, A
Dunson, TR
Ramos, M
DeLucio, M
Faundes, D
Bahamondes, L
Abstract: Objective: To determine the timing of onset of contraceptive effectiveness after the first injection of 150 mg of depot medroxyprogesterone acetate (DMPA) administered between days 8 and 13 of the menstrual cycle. Design: Descriptive, prospective study. Setting: A tertiary university referral center. Patient(s): Thirty healthy women between 18 and 40 years of age. Intervention: Volunteers were injected with DMPA between days 8 and 13 (5 women on each day) of the menstrual cycle. Main Outcome Measure(s): Ovarian function determined by serum levels of E-2 and progesterone and follicular development evaluated by vaginal ultrasound. Result(s): In nine (30%) of 30 women studied, DMPA did not prevent ovulation. All ovulations occurred in women receiving DMPA between days 10 and 13 of the cycle. No woman who received injections on day 8 or 9 ovulated. Ovulation suppression was more effective in women with low ovarian activity. All ovulation occurred within 3 days after the injection. Conclusion: A back-up contraceptive method, used after the 7th day of the menstrual cycle, is recommended for up to 7 days after the first injection of DMPA. (Fertil Steril(R) 1998;70:817-20. (C) 1998 by American Society for Reproductive Medicine.).
Subject: Depo-Provera
ovulation
contraception
back-up contraception
progesterone
estradiol
Country: EUA
Editor: Amer Soc Reproductive Medicine
Rights: fechado
Identifier DOI: 10.1016/S0015-0282(98)00309-4
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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