Publications by authors named "Charles Chapron"

Objective: We aimed to study whether the detection of circulating tumor DNA (ctDNA) may predict the risk of early relapse for patients with localized endometrial carcinoma.

Methods: Patients who underwent surgical resection at Cochin University Hospital (2021-2023) for International Federation of Gynecology and Obstetrics 2018 stage I to III endometrial carcinoma were prospectively included in a prospective biocollection cohort study. All patients had a plasma sample before surgery (EDTA collection tubes, 4-5 mL).

View Article and Find Full Text PDF

Chronic inflammatory rheumatic diseases (CIRDs) are a group of diseases responsible for inflammatory joint pains and can affect young women with a desire to conceive. CIRDs can impact female fertility, although the exact effects are still not fully understood. Some studies report reduced fertility, particularly due to prolonged conception delays, which are related to multiple factors.

View Article and Find Full Text PDF

Adenomyosis, a menstruation-related uterine disorder, refers to the presence of endometrial stroma and glands within the myometrium and is typically observed in reproductive-age women. The pathogenesis explaining the migration, persistence, proliferation and differentiation of ectopic endometrial cells includes a genetic and epigenetic background, an oestrogen/progesterone receptor imbalance and an inflammatory reaction driven by local immune dysfunction, along with fibrosis and neuroangiogenesis within the myometrium. In the past, it was thought that adenomyosis almost exclusively affected multiparous women after 40 years of age and the diagnosis was generally confirmed upon hysterectomy.

View Article and Find Full Text PDF

Study Question: Do serum estradiol (E2) levels on the day of frozen blastocyst transfer (FBT) affect pregnancy outcomes in hormonal replacement therapy (HRT) cycles using transdermal estrogens?

Summary Answer: E2 levels ≥313 pg/ml on the day of FBT are associated with increased early miscarriage rates (EMRs), but do not significantly impact the live birth rate (LBR).

What Is Known Already: E2 plays a crucial role in endometrial receptivity and placentation. The effect of serum E2 levels measured around the time of FBT in HRT cycles remains debated, with some studies indicating a negative impact of high E2 levels and others finding no significant difference.

View Article and Find Full Text PDF

Objective: To evaluate the satisfaction of patients accompanied by hypnosis during oocyte retrieval under local anesthesia.

Methods: This cohort study included patients undergoing oocyte retrieval under local anesthesia with hypnotic support provided either by a hypnotherapist or via a virtual reality headset between November 2022 and November 2023. A questionnaire was distributed after the procedure, assessing satisfaction with hypnosis for pain and anxiety management, as well as the experience of pain (visual analog scale) and anxiety (State-Trait Anxiety Inventory) during the procedure.

View Article and Find Full Text PDF

Background: Endometriosis appears to have a multilayered etiology, with genetic and epigenetic factors each contributing half of the pathogenesis. The molecular processes that underlie the onset of endometriosis are yet unclear, but it is assumed that an important contributor in the etiopathology of the disease is DNA methylation.

Methods: We conducted a systematic review of the literature regarding DNA methylation in endometriosis following PRISMA guidelines.

View Article and Find Full Text PDF

Objectives: The aim of this study was to investigate the clinical characteristics of women with superficial peritoneal endometriosis (SUP) diagnosed by surgery and not confirmed by histology, compared with histologically proven SUP.

Design: This was a single-center, nested case-control study. Participants/Materials: Patients with a surgical report of SUP (n = 390), comprising a subgroup with histological confirmation of endometriosis (n = 245) and a subgroup without it (n = 145).

View Article and Find Full Text PDF

Study Question: Is there an association between dydrogesterone exposure during early pregnancy and the reporting of birth defects?

Summary Answer: This observational analysis based on global safety data showed an increased reporting of birth defects, mainly hypospadias and congenital heart defects (CHD), in pregnancies exposed to dydrogesterone, especially when comparing to progesterone.

What Is Known Already: Intravaginal administration of progesterone is the standard of care to overcome luteal phase progesterone deficiency induced by ovarian stimulation in ART. In recent years, randomized controlled clinical trials demonstrated that oral dydrogesterone was non-inferior for pregnancy rate at 12 weeks of gestation and could be an alternative to micronized vaginal progesterone.

View Article and Find Full Text PDF

Infertility, defined as the inability to obtain pregnancy after 12 months of regular unprotected sexual intercourse, has increased in prevalence over the past decades, similarly to chronic, allergic, autoimmune, or neurodegenerative diseases. A recent ARIA-MeDALL hypothesis has proposed that all these diseases are linked to dysbiosis and to some cytokines such as interleukin 17 (IL-17) and interleukin 33 (IL-33). Our paper suggests that endometriosis, a leading cause of infertility, is linked to endometrial dysbiosis and two key cytokines, IL-17 and IL-33, which interact with intestinal dysbiosis.

View Article and Find Full Text PDF

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 influence of a Western diet on endometriosis lesion development in mice and to uncover the mechanisms involved.

View Article and Find Full Text PDF

Endometriosis is a complex gynecologic disorder characterized primarily by symptoms of pelvic pain, infertility, and altered quality of life. National and international guidelines highlight the diagnostic difficulties and lack of conclusive diagnostic tools for endometriosis. Furthermore, guidelines are becoming questionable at an increasingly rapid rate as new diagnostic techniques emerge.

View Article and Find Full Text PDF

Objective: To provide evidence regarding the significance of painful symptoms among women suffering from infertility.

Design: An observational retrospective cross-sectional study.

Settings: University hospital-based research center.

View Article and Find Full Text PDF

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 associated with histologically proven endometriosis.

What Is Known Already: Some validated questionaries can contribute to an earlier endometriosis diagnosis in adults. None of these scores, however, have been validated for adolescents or YAW.

View Article and Find Full Text PDF

The aim of this review was to provide an updated assessment of the present diagnostic tools and clinical symptoms and signs to evaluate uterine fibroids (UFs) on the basis of current guidelines, recent scientific evidence, and a PubMed and Google Scholar search for peer-reviewed original and review articles related to clinical signs and diagnosis of UFs. Approximately 50%-75% of UFs are considered nonclinically relevant. When present, the most common symptoms are abnormal uterine bleeding, pelvic pain and/or bulk symptoms, and reproductive failure.

View Article and Find Full Text PDF
Article Synopsis
  • * Treatment options include medical therapies (like pain relievers and hormonal treatments) and surgical procedures (ranging from myomectomy to hysterectomy), but few drugs are specifically approved for treating UFs themselves, instead mostly focusing on symptom relief.
  • * Management of iron deficiency and anemia is crucial, especially for those experiencing heavy bleeding, and treatment choices should involve discussions between patients and healthcare providers about personal goals, including fertility and uterine preservation.
View Article and Find Full Text PDF

An anonymous online survey in French was used to assess if endometriosis patients would be as ready as unaffected women to donate their menstrual blood for biological research on endometriosis and evaluate potential barriers to such donation. It was distributed in September 2022 by social media and two mailing lists, including a French patient organization. The questionnaire assessed participant age and brief medical history (hormonal contraception, endometriosis diagnosis, type of endometriosis), menstrual experience (menstrual blood abundance, dysmenorrhea), and whether participants would donate menstrual blood.

View Article and Find Full Text PDF
Article Synopsis
  • The identification of biomarkers for endometriosis aims to enhance understanding of the disease's pathophysiology and improve non-invasive diagnostic methods, but no clinically validated biomarker has been established yet.* -
  • This review compiles data from 447 articles focused on endometriosis biomarkers, highlighting the need for a more integrative approach and considering various factors like disease phenotypes and menstrual cycle phases.* -
  • The study analyzes nine biological compartments, such as blood and peritoneal fluid, to assess biomarker research, with varying degrees of attention to factors like treatment and symptoms in the literature reviewed.*
View Article and Find Full Text PDF
Article Synopsis
  • - This study explored the medical experiences and quality of life of French women affected by endometriosis, focusing on their symptoms and treatment journey from onset to management.
  • - A web-based survey conducted in early 2020 gathered responses from 1,557 women, revealing an average diagnostic delay of 7 years, with many experiencing severe symptoms and pain before receiving treatment.
  • - The findings highlight the significant negative impacts of endometriosis on women's daily lives, underscoring the need to reduce diagnostic delays and establish specialized treatment centers for better management of the condition.
View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to compare the success rates of fresh embryo transfers (ET) versus freeze-all strategies in infertile women with adenomyosis undergoing assisted reproductive technologies (ART).
  • Conducted at a university hospital, the observational study included 306 women, with a notable difference in live birth rates: 44.1% in the freeze-all group compared to 30.6% in the fresh ET group.
  • Conclusions indicate that the freeze-all strategy significantly increases cumulative live birth rates for women with adenomyosis, suggesting it could be a more effective option, warranting further randomized studies for validation.
View Article and Find Full Text PDF

Endometriosis is a condition characterized by increased oxidative stress and chronic inflammation, which can be treated with progestins and other progesterone receptor ligands. However, some patients are refractory to this treatment and the reason is uncertain. Here we investigated the effects of the selective progesterone receptor modulator ulipristal acetate (UPA) on proliferation, reactive oxygen species (ROS), and proinflammatory cytokine production by endometriotic cells and endometrial cells from women with histologically proven endometriosis (n = 22) and endometriosis-free controls (n = 6).

View Article and Find Full Text PDF
Article Synopsis
  • The French National College of Obstetricians and Gynecologists updated their guidelines in 2018 to manage endometriosis pain, now incorporating new therapies and research up to 2021.
  • A new diagnostic approach using patient questionnaires and saliva analysis may help identify pelvic pain issues without the need for surgery.
  • Dienogest (DNG) is recognized as an effective first-line treatment for endometriosis pain, and new oral GnRH antagonists are expected to hit the French market soon, offering rapid results with easier administration compared to existing treatments.
View Article and Find Full Text PDF