Michaël Grynberg

BACKGROUND: The optimal duration of ovarian stimulation in GnRH antagonist protocols remains insufficiently explored, despite its potential impact on oocyte quality, embryo development, and endometrial receptivity. Identifying an optimal st…

RESEARCH QUESTION: What are the fertility outcomes in women with endometriosis who attempt to conceive at least 2 years after undergoing fertility preservation. DESIGN: This retrospective, observational, bicentric cohort study included wom…

Abstract Study question To study the fertility outcomes of women who tried to conceive at least 2 years after fertility preservation (FP) for endometriosis. Summary answer To advise patients with endometriosis on the benefit of FP, particul…

Estradiol (E2) is a major hormone-controlling folliculogenesis whose dysfunction may participate in polycystic ovary syndrome (PCOS) infertility. To determine whether both the concentration and action of E2 could be impaired in non-hyperand…

OBJECTIVE: To compare first-line surgery with first-line assisted reproductive techniques (ART) in infertile women with deep infiltrating endometriosis (DIE) without colorectal involvement. STUDY DESIGN: A retrospective comparative cohort …

STUDY QUESTION: Does unilateral oophorectomy modify the relationship between serum anti-Müllerian hormone (AMH) levels and antral follicle count (AFC)? SUMMARY ANSWER: No altered 'per-ovary' and 'per-follicle' AMH production and antral fol…

BACKGROUND: The management of endometriosis-related infertility is still under debate. The Endometriosis Fertility Index (EFI) score is performant to predict the occurrence of a spontaneous pregnancy following surgery, but was not evaluated…

OBJECTIVE: Endometriosis affects 10% of women in reproductive age and alters fertility. Its management is still debated notably the timing of surgery and ART in infertility. Several tools have been created to guide the practitioner and the …

L’association entre endometriose et infertilite est actuellement bien etablie, et la force de cette association est fonction du stade de l’endometriose. L’exerese chirurgicale des lesions d’endometriose, avant prise en charge en assistance …