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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/13801

Title: Hormonal profile, endometrial histology and ovarian ultrasound assessment during 1 year of nomegestrol acetate implant (Uniplant®)
Other Titles: Human Reproduction
Authors: Devoto, Luigi
Kohen, Paulina
Barnhart, Kurt T.
Alba, Francisco
Pommer, Ricardo
Retamales, Ivan
Coutinho, Elsimar Metzker
Issue Date: 1997
Publisher: Human Reproduction
Abstract: The present study assesses the endocrinological, endometrial histology and vaginal ultrasound profiles of nomegestrol acetate subdermal implant users at varying times after insertion. Follicle stimulatory hormone, luteinizing hormone, oestradiol, progesterone, vaginal ultrasound assessment of the ovaries and the histological dating of the endometrium were serially assessed for a period of 50 days immediately after the insertion, and after at 6 months and 12 months of use. The endocrinological results of this prospective observational clinical trial indicated that 75% of the cycles across the study period in Uniplant users were anovulatory, 63% showing development of a persistent non-luteinized follicle. Anovulatory cycles devoid of follicular development were seen primarily in the first months after Uniplant insertion. Ovulatory cycles represented 25% of the Uniplant cycles. Inadequate luteal phase or disregulation of follicular growth was a common feature of ovulatory cycles. In conclusion, these findings suggest that the contraceptive mechanisms of a single nomegestrol acetate subdermal implant involve prevention of follicular growth, development of a persistent non-luteinized follicle, inadequate luteal phase and disruption of the endometrial architecture.
Description: Texto completo. Acesso restrito. p. 708–713
URI: http://repositorio.ufba.br/ri/handle/ri/13801
ISSN: 0268-1161
Appears in Collections:Artigos Publicados em Periódicos (Medicina)

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