The impact of long-term gonadotropin-releasing hormone analogue treatment on preclinical abortions in patients with severe endometriosis undergoing in vitro fertilization-embryo transfer
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⤵ 80 in-corpus citations
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This study investigated the effect of long-term GnRH analogue treatment on preclinical abortions in severe endometriosis patients undergoing IVF-ET.
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Abstract
OBJECTIVE: To examine the relationship between endometriosis and preclinical abortions and to evaluate the effect of gonadotropin-releasing hormone analogue (GnRH-a) therapy on these pregnancies.
DESIGN AND PATIENTS: Of 67 women with severe endometriosis referred to us for in vitro fertilization-embryo transfer (IVF-ET), 32 underwent ovarian stimulation for oocyte retrieval with menotropins (protocol A), whereas the other 35 were admitted for the procedure after a 6-month period of hormonal suppression with a GnRH agonist (protocol B). The clinical impact of the preclinical and clinical pregnancies in both treatment protocols were evaluated on the basis of oocyte classification and embryo quality score.
SETTING: All patients were treated in our IVF Unit.
MAIN OUTCOME MEASURE: Clinical pregnancy was used as our main outcome measure of success.
RESULTS: A significantly higher number of preclinical pregnancies (P less than 0.0001) occurred in patients treated by protocol A. After GnRH-a treatment, the preclinical pregnancy rate declined significantly (P less than 0.0001), whereas the clinical pregnancy rate per cycle and per transfer rose significantly (P less than 0.0001 and P less than 0.0001, respectively). Furthermore, clinical pregnancies had a significantly better mean embryo quality score in comparison with preclinical pregnancies (P less than 0.0001).
CONCLUSIONS: It is concluded that combining GnRH-a therapy before IVF-ET provides an improved treatment modality for preclinical abortions and infertility associated with severe endometriosis.
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- Efficacy of long-term pituitary down-regulation pretreatment prior to in vitro fertilization in infertile patients with endometriosis: A meta-analysis 2023
- Human genetics and assisted reproduction in endometriosis 2023
- Long-term pituitary down-regulation pretreatment for endometriosis - chronicles of guidelines and recommendations 2022
- The ultra-long study: a randomized controlled trial evaluating long-term GnRH downregulation prior to ART in women with endometriosis 2021
- New treatment strategy for endometriosis using progestin-primed ovarian stimulation with dienogest: A prospective cohort study, comparison of dienogest versus dydrogesterone 2020
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- Operative Therapie bei Endometrioseene ablative Verfahren und individuelle 2006
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- Long-term pituitary down-regulation before in vitro fertilization (IVF) for women with endometriosis 2006
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