Louis Marcellin

STUDY QUESTION: Do women with endometriosis who achieve a live birth (LB) after HRT-frozen embryo transfer (HRT-FET) have different progesterone levels on the day of transfer compared to unaffected women? SUMMARY ANSWER: In women achieving…

STUDY QUESTION: Do adolescents and young adult women (YAW) with histologically proven endometriosis present a specific clinical history? SUMMARY ANSWER: Questionnaire screening of adolescents and YAW can identify clinical markers associate…

Recognizing the limited information, vague diagnostic criterion, and difficult clinical challenges posed by adenomyosis, the Society of Endometriosis and Uterine Disorders organized an expert symposium to present the current understanding o…

(Abstracted from Fertil Steril 2024;121(3)) Adenomyosis is a benign uterine disorder characterized by the presence of endometrial glands and stroma within the myometrium associated with smooth muscle hyperplasia. Its presentation is heterog…

BACKGROUND: Endometriosis, affecting 10% of women in their reproductive years, remains poorly understood. Both individual and environmental unexplained factors are implicated in this heterogenous condition. This study aims to examine the in…

OBJECTIVE: To compare computed tomography-enterography (CTE) and magnetic resonance-enterography (MRE) in the detection of right-sided bowel deep infiltrating endometriosis (DIE). MATERIALS AND METHODS: Fifty women with DIE who underwent p…

RESEARCH QUESTION: Is a decrease in dysmenorrhoea after suppressive hormonal therapy a marker of the endometriosis phenotype and of greater disease severity? DESIGN: Retrospective observational cohort study conducted in a French university…

STUDY QUESTION: Do severe endometriosis-related painful symptoms impact ART live birth rates? SUMMARY ANSWER: Severe pain symptoms are not associated with reduced ART live birth rates in endometriosis patients. WHAT IS KNOWN ALREADY: ART …

In order to inform patients undergoing ART regarding their chances for motherhood, it seems useful to describe "freeze all" outcomes according to the different potential indications. The goal of this study was to examine the impact of a "fr…

RESEARCH QUESTION: Is there a change in magnetic resonance imaging (MRI) criteria of diffuse and focal phenotypes of adenomyosis before and after pregnancy? DESIGN: A retrospective, monocentric, observational study in a single academic ter…

Abstract Study question Does the freeze all strategy improve cumulative live birth rates in infertile women affected with adenomyosis? Summary answer The freeze all strategy in adenomyosis-affected women is associated with significantly hig…

RESEARCH QUESTION: What are the reproductive outcomes and the prognostic factors of live birth rates in patients with endometriosis referred to oocyte donation after multiple IVF failures? DESIGN: Observational cohort study including all w…

Abstract Study question What are the reproductive outcomes and the prognostic factors of live birth rates in endometriosis patients referred to oocyte donation after multiple in vitro fertilization(IVF)-failures? Summary answer In this spec…

OBJECTIVE: To compare assisted reproductive technologies (ARTs) outcomes between fresh vs. freeze-all strategies in infertile women affected by adenomyosis. DESIGN: A single-center observational study. SETTINGS: University hospital-based …

To determine whether recurrent endometriomas are associated with multiple deep infiltrating endometriosis (DIE) lesions. This was an observational, cross-sectional, cohort study of 611 consecutive symptomatic women with endometrioma who und…

OBJECTIVE: To evaluate the prevalence on magnetic resonance imaging (MRI) of ovarian endometrioma (OMA) and deep infiltrating endometriosis (DIE) in adolescents presenting with severe dysmenorrhea. DESIGN: Prospective study. SETTING: Clin…

BACKGROUND: The time between symptoms onset and endometriosis diagnosis is usually long. The negative impacts of delayed endometriosis diagnosis can affect patients and health outcomes. METHODS: We conducted a case-control study using clini…

Importance: Endometriosis is an inflammatory disease with a heterogeneous presentation that affects women of childbearing age. Given the limitations of previous retrospective studies, it is still unclear whether endometriosis has adverse im…

RESEARCH QUESTION: Does endometrioma size affect the number of oocytes retrieved after ovarian stimulation in women with endometriosis-related infertility undergoing IVF/intracytoplasmic sperm injection (ICSI)? DESIGN: Cohort study of infe…

Abstract Study question Are there any fertility disorders and related local and/or systemic immune changes during the early implantation period in a mouse model of adenomyosis? Summary answer An increase in fertility disorders was observed …

STUDY QUESTION: What is the impact of adenomyosis on the live birth rate (LBR) in women affected by endometriosis women undergoing ART? SUMMARY ANSWER: For women undergoing ART, the presence of adenomyosis at MRI, especially T2 high-signal …

Adenomyosis is a common gynecologic disease characterized by invasion of endometrial glands and stroma within the myometrium. Clinically, it can result in abnormal uterine bleeding, pelvic pain, and infertility. Adenomyosis has historically…