Publications by authors named "Blandine Courbiere"

Objective: To develop a machine learning method for the automatic recognition of endometriosis lesions during laparoscopic surgery and evaluate its feasibility and performance.

Design: Collecting and annotating surgical videos and training, validating, and testing a deep neural network.

Setting: Multicenter proof-of-concept study using surgical videos from expert centers in France, Hungary, Brazil, and Denmark.

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Objective: to study the time from symptom onset to the diagnosis of moderate and severe endometriosis and to compare this delay before and after the implementation of the French National Endometriosis Public Health Plan.

Design: Monocentric retrospective cohort study.

Exposure: A comparison of diagnostic delays for moderate and severe endometriosis in women before and after the implementation of a National Public Health Plan in February 2022.

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Breast cancer affects 5% of women of childbearing age, accounting for 30% of cancer cases in this population. These cancers are often more aggressive with a less favorable prognosis in younger women. Hormonal exposure plays a key role in the development of this cancer, although the specific impact of certain exposures, such as hormonal contraception or ovarian stimulation treatments, remains debated.

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Objective: To evaluate the effectiveness of multi-bipolar radiofrequency ablation compared to standard laparoscopic myomectomy in treating uterine fibroids, focusing on women's quality of life.

Design: Retrospective observational cohort study.

Setting: La Conception Hospital, APHM-Marseille, France.

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Introduction: Uterine damage after pelvic radiotherapy or total-body irradiation is well described, with decreased uterine volume and high obstetrical morbidity. Some recent studies have reported a smaller uterus in child, adolescent, and young adult cancer survivors treated with chemotherapy only. This systematic review investigated the long-term effects of gonadotoxic therapy on uterine volume during childhood, adolescence, and young adulthood.

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Purpose: Fertility preservation in women with cancer represents a major medical challenge at the intersection of oncological and reproductive concerns. With therapeutic advancements, the survival rates of cancer patients have significantly improved, offering the possibility of motherhood. Currently, there is a lack of data on the return of cryopreserved oocytes/embryos and pregnancy outcomes following cancer treatment.

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Purpose: To explore the experiences of fertility preservation (FP) and cancer-induced infertility among adolescent and young adult (AYA) cancer survivors.

Methods: This cross-sectional, qualitative study was conducted by a sociologist in collaboration with a multidisciplinary team specializing in oncology and reproductive medicine. The sample included 31 AYA cancer survivors (13-35 years old) in remission for at least one year.

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Background: We aimed to develop and validate an algorithm for identifying women with polycystic ovary syndrome (PCOS) in the French national health data system.

Methods: Using data from the French national health data system, we applied the International Classification of Diseases (ICD-10) related diagnoses E28.2 for PCOS among women aged 18 to 43 years in 2021.

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Objective: To study the impact of a CT serology on intrauterine insemination (IUI) cumulative live-birth rate (cLBR) in women with documented bilateral tubal patency.

Design: Cohort study SUBJECTS: Infertile women with documented bilateral tubal patency and medical indication of IUI matched on the following criteria: woman's age, number of cycles completed and number of motile sperm inseminated (NMSI).

Exposure: This retrospective, observational and monocentric cohort study compared women with positive CT serology matched 1:1 to control women with negative CT serology.

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Purpose: Only a few case reports have described heterotopic ovarian tissue transplantation (OTT) with the only objective of restoring ovarian function.

Methods: Case report and review of the literature for reporting cases of heterotopic OTT with the only aim of restoring ovarian endocrine function. In a cancer survivor woman with a history of hysterectomy and bilateral oophorectomy for cervical cancer and because she poorly tolerated hormone replacement therapy (HRT), we performed a heterotopic OTT in a pelvic subcutaneous "pocket" after an OT cryostorage of 17 years.

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Article Synopsis
  • The study outlines a 10-step minimally invasive laparoscopic technique called multibipolar radiofrequency myolysis, aimed at treating symptomatic myomas in women.
  • A video demonstration guides viewers through the procedure, which is shown to be especially beneficial for women desiring future fertility.
  • The technique, approved by the local institutional board as it focuses on procedural demonstration rather than a specific clinical case, is designed to simplify the learning process and improve accessibility for medical practitioners.
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Article Synopsis
  • The updated clinical practice guidelines aim to improve the first-line management of infertility in couples by revisiting existing recommendations based on recent research.
  • A systematic review was conducted by expert working groups on five major themes, resulting in 28 PICO-formulated questions addressing both male and female infertility assessments, environmental factors, ovulation induction, and reproductive surgery techniques.
  • Key recommendations include tailored fertility evaluations based on the woman's age, specific tests for both partners, and the dismissal of certain outdated procedures, with an emphasis on evidence-based approaches to optimize infertility treatment.
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Research Question: Does positive Chlamydia trachomatis serology have an impact on the cumulative live birth rate from IVF?

Design: A retrospective matched cohort study compared women with positive Chlamydia trachomatis serology (group A) who underwent IVF treatment between January 2016 and December 2021 with a control group of women with negative Chlamydia trachomatis serology (group B). The main outcome measures were the cumulative live birth rate per IVF cycle and the live birth rate per embryo transfer. Secondary outcomes were the cumulative rates of clinical pregnancy, ectopic pregnancy and pregnancy loss calculated per IVF cycle and per embryo transfer.

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The aim of our study was to evaluate the feasibility and efficiency of delayed ovarian stimulation and metaphase II oocyte banking for fertility preservation after fertility-impairing treatment regardless of the initial disease. We conducted a cohort study based on population of women < 40 years of age with diminished ovarian reserve caused by fertility-impairing treatment (n = 129). Three groups of women were compared according to the type of initial disease: hematological malignancies, solid tumors, and benign diseases.

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Research Question: Does moderate-to-severe endometriosis have an impact on cumulative live birth rates (cLBR) and IVF outcomes?

Design: In this retrospective matched cohort study, women with moderate-to-severe endometriosis undergoing IVF or intracytoplasmic sperm injection treatment from January 2015 to December 2020 were matched 1:2 to women with other causes of infertility (control group). The main outcome was cLBR per cycle and per woman, and secondary outcomes were number of oocytes retrieved and number of mature oocytes, fertilization rate, total number of embryos and usable embryos, implantation rate, clinical pregnancy rate and miscarriage rate per cycle.

Results: In total, 195 women with endometriosis were matched with 390 women without endometriosis (323 and 646 cycles, respectively).

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CANCER AND FERTILITY PRESERVATION. The integration of fertility preservation into the treatment pathway is a major issue for quality of life after cancer, particularly for very young children, adolescents and young adults. Responses must be adapted to age, gender and treatment.

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Article Synopsis
  • * Traditionally, tubal reanastomosis was done through microsurgery, which, while precise, carried some risks and complications.
  • * The advancement of robot-assisted laparoscopy has made the procedure easier and safer, offering better conditions for reanastomosis with increased precision and stability.
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Purpose: After childhood leukemia and hematopoietic stem cell transplantation, hormone replacement therapy is often required to induce puberty because of premature ovarian insufficiency. Observance of this kind of treatment in adolescents and young women seems quite poor, and literature about its acceptance remains scarce; in order to learn about their experience and to better understand their attitude towards hormone replacement therapy, we used qualitative methods.

Design And Patients: 13 young women childhood cancer survivors completed an individual interview.

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Ovarian function impairment and infertility are among the most frequent late effects after hematopoietic stem cell transplantation (HSCT). The aim of this study was to evaluate ovarian function, occurrence of premature ovarian insufficiency (POI), and spontaneous pregnancy in a large cohort of adult survivor women who had undergone HSCT for leukemia before puberty. We conducted a retrospective observational study in women from the national cohort L.

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The objective of this study was to explore and describe the specificities of the occupational life of infertile endometriotic women treated by in vitro fertilization. We conducted a qualitative monocentric study between December 2020 and June 2021. Twelve semi-structured in-depth interviews using a theme-based interview guide with open questions were undertaken with infertile women with deep infiltrating endometriosis.

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Article Synopsis
  • The study investigates how hematopoietic stem cell transplantation (HSCT) affects uterus size in women who survived childhood acute leukemia, focusing on the age at HSCT and conditioning type.
  • Conducted at 13 French university hospitals, the prospective cohort study included 88 female HSCT survivors compared to a control group, using MRI to measure uterine volume.
  • Results showed a significant reduction in uterine volume among HSCT survivors, with those receiving total body irradiation experiencing a 75.3% decrease, compared to a 43.1% decrease in those who received an alkylating agent-based regimen.
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The objective of this study was to investigate the feelings and experiences of infertile women with deep infiltrating endometriosis during and after a first pregnancy achieved by in-vitro fertilization (IVF). We conducted a qualitative monocentric study between May and November 2020. Semi-structured interviews were undertaken with infertile women with deep infiltrating endometriosis who achieved a first pregnancy by IVF and delivered at least two years prior to the interview.

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Article Synopsis
  • * Out of 407 contacted, 133 general practitioners responded, with 61.7% scoring above 75% on knowledge-related questions, indicating a general awareness of symptoms such as dysmenorrhea and pelvic pain, although less attention was given to uro-digestive disorders.
  • * The findings highlight that more frequent gynecological consultations and familiarity with current guidelines correlate with better knowledge of endometriosis, though a significant number still lack adequate referral practices for suspected cases.
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Article Synopsis
  • The text outlines guidelines for fertility preservation (FP) in patients undergoing cancer treatment, emphasizing the importance of informing reproductive-aged individuals about the risk of gonadotoxicity from treatments.
  • It recommends specific FP strategies based on age and treatment type, such as oocyte cryopreservation for women and sperm cryopreservation for men, with additional options for higher-risk cases.
  • The choice of FP method should ultimately be made by the patient, considering their specific circumstances and treatment plans.
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Strains Marseille-Q5893 (= CSUR Q5893 = CECT 30496) and Marseille-Q5883 (= CSUR Q5883 = CECT 30497) were isolated from vaginal samples using the culturomics approach. The 16S rRNA gene sequences of each strain were sequenced and then compared by BLASTn to the NCBI database. Strains Marseille-Q5893 and Marseille-Q5883 were most closely related to Anaerococcus obesiensis and Finegoldia magna, with identities of 98.

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