Aplicação de dispositivo intra-uterino liberador de levonorgestrel, previamente a ciclos de fertilização in vitro, nas portadoras de adenomiose
Levonorgestrel intrauterine devices reduced adenomyosis symptoms and uterine volume, leading to a higher pregnancy rate in women undergoing IVF after previous implantation failures.
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The study evaluated whether placing a levonorgestrel-releasing intrauterine device (20 µg/day for 6 months) before a new IVF cycle improves outcomes in 80 infertile women up to age 38 with adenomyosis diagnosed by pelvic ultrasound and MRI and with prior IVF implantation failure. In a group of 40 women receiving the IUD, uterine volume, junctional zone thickness, and junctional zone hypersignal foci were assessed before and after treatment, and pregnancy rates after the subsequent IVF cycle were compared with 40 women who underwent IVF directly without prior treatment. After treatment, focal adenomyosis was reduced in 77.7% of cases, uterine volume and mean junctional zone thickness decreased significantly, and pregnancy was 30% versus 17.5% in the control group, though the difference in pregnancy rate was not statistically significant. This paper is centrally about adenomyosis — testing a levonorgestrel IUD prior to IVF in women with adenomyosis and prior implantation failure.
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