Avaliação da massa ossea em usuarias do sistema intra-uterino liberador de levonorgestrel (SIU-LNG)

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

BACKGROUND: There are concerns about the effect of hormonal contraceptives on bone mineral density (BMD) but there is currently no information available on the effect of the levonorgestrel-releasing intrauterine system (LNG-IUS, Mirenaâ) on BMD. The objective of this study was to compare the BMD of Mirenaâ users with that of controls using the TCu380A intrauterine device (IUD). MATERIALS AND METHODS: A cross-sectional study paired 53 women, aged 25 to 51, who had been using the LNG-IUS for 7 years, with 53 IUD users, according to age (± 1 year) and body mass index (BMI; kg/m2) (± 1). BMD was evaluated at the midshaft of the ulna and the distal radius of the nondominant forearm using double X-ray absorptiometry. RESULTS: Mean age of women was 34 years. BMI was slightly over 25 in both groups. Estradiol was 98.2 ± 12.7 pg/ml (mean ± SD). Mean BMD was 0.471 ± 0.058 and 0.467 ± 0.050 and 0.409 ± 0.009 and 0.411 ± 0.009 at the midshaft of the ulna and distal radius in Mirena and IUD users, respectively (mean ± SD), without significant differences. CONCLUSIONS: Women aged 25 to 51, using the LNG-IUS for seven years, had a mean BMD similar to that of the control group of TCu380A IUD users

ASSUNTO(S)

anticoncepcionais dispositivos intra-uterinos dispositivos intrauterinos densitometria anticoncepção contraceptivos

ACESSO AO ARTIGO

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