Investigating the efficacy of transcranial direct current stimulation on chronic pain management in endometriosis patients: A randomized controlled trial protocol.

INTRODUCTION: Similar to chronic pain conditions, individuals with endometriosis can be affected by central sensitization syndrome (CSS), which is characterized by a loss of analgesia and central amplification of pain. Transcranial direct current stimulation (tDCS) has shown potential as an effective intervention to improve pain generated by other chronic pain conditions impacted by CSS, such as fibromyalgia and chronic pelvic issues. This study aims to evaluate the effectiveness of tDCS on pain, fatigue, and quality of life among patients affected by endometriosis. METHODS: This is a single-center, parallel, double-blinded, randomized, controlled clinical trial protocol study. We aim to recruit 40 participants affected by endometriosis (active group, n = 20; sham group, n = 20). Anodal tDCS will be delivered at an intensity of 2mA, applied over the primary motor cortex for 20 minutes per day for 10 consecutive days. There will be four assessment times: 1 week before beginning the intervention; on the 10th day following the last tDCS session; and 1 and 2 months after the last tDCS session. Pain evaluated by the algometry will be the primary outcome. Pain intensity, quality of life, fatigue, and global perception of change will be the secondary outcomes. We will calculate the effects of the active versus sham stimulation on primary and secondary outcomes by using generalized estimated equations or mixed model analysis. The effect size calculation will represent the effect measure. We expect that only the active group show reductions in pain, fatigue, and quality of life. The results of this trial will produce an important first step in providing evidence on the effectiveness of neuromodulation for the management of pain and will provide data to support new studies on tDCS. REGISTRATION: Brazilian Clinical Trials Registry (RBR-4q69573).

[Endometriosis, physical activity and sport]. / Endométriose et activité physique et sportive.

ENDOMETRIOSIS, PHYSICAL ACTIVITY AND SPORT. Endometriosis is a chronic, inflammatory gynecological disorder that impacts the quality of life of 10% of women of reproductive age with chronic recurrent pain and/or infertility. Management is a challenge both at the diagnostic time because no symptom is specific and at the therapeutic time to limit the symptoms of the disease. Recent studies suggest that physical activity has a beneficial effect on the perception of pain and the quality of life of women, if it is adapted to physical abilities, avoiding high-intensity sports during painful periods. Regular adapted physical activity combining endurance, stretching and flexibility at a light to moderate intensity, should allow a physical and psychological well-being for women with endometriosis in association with medical and/or surgical treatment.

ENDOMÉTRIOSE ET ACTIVITÉ PHYSIQUE ET SPORTIVE. L'endométriose est une affection gynécologique chronique, inflammatoire, qui impacte la qualité de vie de 10 % des femmes en âge de procréer car elle entraîne des douleurs chroniques récurrentes et/ou une infertilité. La prise en charge est un défi tant au niveau diagnostique, car aucun symptôme n'est spécifique, qu'au niveau thérapeutique pour limiter les symptômes de la maladie. Les études récentes suggèrent que l'activité physique a un effet bénéfique sur la perception de la douleur et la qualité de vie des femmes, si elle est adaptée à la condition physique, en limitant les sports de forte intensité lors des périodes douloureuses. Une pratique régulière d'activités physiques adaptées associant endurance, étirements, assouplissements, à intensité légère à modérée, doit permettre un mieux-être physique et psychique de la femme souffrant d'endométriose en association au traitement médical et/ou chirurgical.

Surgical and/ or conservative treatment improves quality of life (EHP-30) in patients with endometriosis.

AIM: To investigate the quality of life of women with endometriosis before treatment and 3 months after the start of surgical and/or conservative treatment. SAMPLE AND METHODOLOGY: The sample comprised of 38 patients, of whom 26 underwent surgical treatment, 6 had pharmacological treatment, and 6 had both surgical and pharmacological treatment. The Endometriosis Health Profile (EHP-30) questionnaire in the Czech version and the Numeric Rating Scale (NRS) were used to assess quality of life. The questionnaires were completed before treatment and 3 months into the treatment. RESULTS AND DISCUSSION: When comparing quality of life with the EHP-30 questionnaire, 3 months after the start of treatment, significantly better quality of life scores were found in all domains except the domain "Infertility." Statistically significant improvement was observed in the domains of "Control and powerlessness," "Emotional well-being," and "Pain" (P < 0.0001). Pain assessment using NRS showed subjective improvement in pain during menstruation, outside menstruation, during intercourse, micturition, and defecation. Statistically significant improvement was reported in pain during menstruation and outside menstruation (P < 0.0001). CONCLUSION: Treatment of endometriosis improves the quality of life and also leads to a subjective reduction of pain intensity as one of the main symptoms of the disease.

Observational pilot study on the influence of an app-based self-management program on the quality of life of women with endometriosis.

PURPOSE: Endometriosis can significantly impair the quality of life of those affected. Multimodal self-help measures are recommended but often difficult to access. Smartphone apps have been shown to improve the quality of life for other conditions with chronic pain. The aim of this study was to examine whether there is evidence of beneficial effects of the smartphone app "Endo-App®" and whether a multicenter randomized controlled trial should be planned to substantiate these effects. METHODS: In a sample of N = 106 women affected by endometriosis the present study determined the influence of the use of Endo-App® on their quality of life. Among others, the validated questionnaire Endometriosis Health Profile from Oxford University was used for this purpose. RESULTS: The use of Endo-App® lead to a highly significant improvement in quality of life already after 2 weeks. A statistically significant change was found for nine out of ten measured variables of quality of life. A series of further analyses validated that the measured positive effects were not due to other confounding factors. CONCLUSION: In summary, the results indicate that the quality of life of women with endometriosis improved by the digital self-management tool Endo-App®. More studies are needed to further explore the influence of the app on quality of life and as confirmatory evidence of beneficial effects. For this purpose, a randomized controlled trial should be conducted over a longer period of time. TRIAL REGISTRATION: This trial is registered at clinicaltrials.gov under the registration number NCT05528601 on August 18, 2022. It was retrospectively registered.

Endometriosis: Improvements and challenges in diagnosis and symptom management.

Endometriosis is a chronic disorder with debilitating symptoms that is difficult to diagnose and treat. Advances in imaging technologies and strategies for the management of symptoms are improving the quality of life of patients by reducing the time taken for diagnosis and offering a more balanced approach to therapy.

Holistic approach to care for patients with endometriosis.

PURPOSE OF REVIEW: Endometriosis is a chronic, often debilitating, disease which is typically managed with surgery and hormonal medications. However, many patients feel they lack agency when managing endometriosis symptoms. The purpose of this review is to discuss the mental and physical management strategies, the long-term health consequences, and the role of a multidisciplinary team in the treatment of endometriosis. RECENT FINDINGS: Evidence is becoming more robust regarding the role of complementary care and physical activity in the management of endometriosis. Health risks such as infertility are well known and newer evidence is evolving regarding perinatal and cardiovascular health risks. There are also trends towards multiple specialist involvement in the care of endometriosis and the benefit of interdisciplinary collaboration. SUMMARY: Endometriosis is a frequently recurrent condition requiring not only meticulous medical and surgical care, but also coordinated longitudinal disease management and impact mitigation. Gynecologists should be aware of the short-term and long-term implications of the disease to empower patients on the management of their overall health.

Impact of lifestyle and dietary modifications for endometriosis development and symptom management.

PURPOSE OF REVIEW: Management of endometriosis is often complex and poorly studied. Patients with endometriosis have interest in how their lifestyle may affect their diagnosis. Self-management and lifestyle changes are often used as adjunct therapy, but best practices are not concrete in treatment guidelines. RECENT FINDINGS: Lifestyle impact on endometriosis and possible self-management treatment therapies are reviewed. Overall, there is a need for future studies in all topics. Data suggest a link between endocrine-disrupting chemicals (EDCs), particularly persistent EDCs, and endometriosis. More work is needed to isolate and quantify exposures and explore their connection to endometriosis in order to provide guidance for clinical practice recommendations. There is insufficient evidence to support a superior diet for management of endometriosis; however, the Mediterranean diet may have the most benefit without nutrition concerns. Exercise may be another tool to improve endometriosis symptoms, but once again data are limited and best type and frequency is not well studied. Best evidence supports body-mind practices such as yoga, although new evidence suggests benefit from a holistic combination of several types of exercises. SUMMARY: Overall, data on lifestyle effects and associated therapies are limited. Future high-quality studies are needed to guide practice.

Evaluating the safety of high-intensity focused ultrasound treatment for rectal endometriosis: results from a French prospective multicentre study including 60 patients.

STUDY QUESTION: Is increasing the intensity of high-intensity focused ultrasound (HIFU) by 30% in the treatment of rectal endometriosis a safe procedure? SUMMARY ANSWER: This study demonstrates the safety of a 30% increase in the intensity of HIFU in the treatment of rectal endometriosis, with no Clavien-Dindo Grade III complications overall, and namely no rectovaginal fistulae. WHAT IS KNOWN ALREADY: A feasibility study including 20 patients with rectal endometriosis demonstrated, with no severe complications, a significant improvement in digestive disorders, dysmenorrhoea, dyspareunia, and health status, although the volume of the endometriosis nodule did not appear to be reduced. STUDY DESIGN, SIZE, DURATION: A prospective multicentre cohort study was conducted between 2020 and 2022 with 60 patients with symptomatic rectal endometriosis. Following the failure of medical treatment, HIFU treatment was offered as an alternative to surgery. PARTICIPANTS/MATERIALS, SETTING, METHODS: As the main objective of this study was to examine safety, all adverse events observed during the 6 months of follow-up were analysed and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) and Clavien-Dindo classifications. Secondary objectives included evaluating the evolution of symptoms using validated questionnaires: gynaecological and digestive pain symptoms with a visual analogue scale, health status with the Medical Outcomes Study 36-item Short Form (SF-36) questionnaire, average post-operative daily pain level, and analgesic medication required in the 10 days following treatment. MRI was also performed at Day 1 to detect early complications. Finally, we performed a blinded MRI review of the evolution of the nodule at 6 months post-treatment. MAIN RESULTS AND THE ROLE OF CHANCE: The procedure was performed under spinal anaesthesia for 30% of the patients. The median duration of treatment was 32 min. Fifty-five patients left the hospital on Day 1. MRI scans performed on Day 1 did not highlight any early-onset post-operative complication. Using the Clavien-Dindo classification, we listed 56.7% Grade I events, 3.4% Grade II events, and no events Grade III or higher. At 1, 3, and 6 months, all gynaecologic, digestive and general symptoms, as well as health status, had significantly improved. The evolution of the nodule was also significant (P < 0.001) with a 28% decrease in volume. LIMITATIONS, REASONS FOR CAUTION: The main objective was safety and not effectiveness. The study was not randomized and there was no control group. WIDER IMPLICATIONS OF THE FINDINGS: HIFU treatment for rectal endometriosis results in an improvement of symptoms with low morbidity; as such, for selected patients, it could be a valuable alternative to surgical approaches following the failure of medical treatment. STUDY FUNDING/COMPETING INTEREST(S): The study was funded by the company EDAP TMS. Professors Dubernard and Rousset are consultants for EDAP TMS. Dubernard received travel support from EDAP-TMS. Dr F. Chavrier received industrial grants from EDAP-TMS. He has developed a device for generating focused ultrasonic waves with reduced treatment time. This device has been patented by EDAP-TMS. Dr Lafon received industrial grants from EDAP-TMS; he declares that EDAP-TMS provided funding directly to INSERM to support a young researcher chair in therapeutic ultrasound, which is unrelated to the current study. TRIAL REGISTRATION NUMBER: ClinicalTrials.gov identifier NCT04494568.

Entrapped by pain: The diagnosis and management of endometriosis affecting somatic nerves.

Somatic nerve entrapment caused by endometriosis is an underrecognized and often misdiagnosed issue that leads to many women suffering unnecessarily. While the classic symptoms of endometriosis are well-known to the gynaecologic surgeon, the dermatomal-type pain caused by endometriosis impacting neural structures is not within gynecologic day-to-day practice, which often complicates diagnosis and delays treatment. A thorough understanding of pelvic neuroanatomy and a neuropelveologic approach is required for accurate assessments of patients with endometriosis and nerve entrapment. Magnetic resonance imaging is the preferred imaging modality for this presentation of endometriosis. Surgical management with laparoscopic or robotic-assisted techniques is the preferred approach to treatment, with excellent long-term results reported after nerve detrapment and endometriosis excision. The review calls for increased awareness and education on the links between endometriosis and the nervous system, advocating for patient-centered care and further research to refine the diagnosis and treatment of this challenging condition.

Extracellular vesicles in endometriosis: role and potential.

Endometriosis is a chronic inflammatory gynecological disease, which profoundly jeopardizes women's quality of life and places a significant medical burden on society. The pathogenesis of endometriosis remains unclear, posing major clinical challenges in diagnosis and treatment. There is an urgent demand for the development of innovative non-invasive diagnostic techniques and the identification of therapeutic targets. Extracellular vesicles, recognized for transporting a diverse array of signaling molecules, have garnered extensive attention as a novel mode of intercellular communication. A burgeoning body of research indicates that extracellular vesicles play a pivotal role in the pathogenesis of endometriosis, which may provide possibility and prospect for both diagnosis and treatment. In light of this context, this article focuses on the involvement of extracellular vesicles in the pathogenesis of endometriosis, which deliver information among endometrial stromal cells, macrophages, mesenchymal stem cells, and other cells, and explores their potential applications in the diagnosis and treatment, conducing to the emergence of new strategies for clinical diagnosis and treatment.

Transgender and gender diverse people with endometriosis: A perspective on affirming gynaecological care.

Transgender and gender diverse people presumed female at birth experience gynaecological conditions, such as chronic pelvic pain at elevated rates, estimated to impact between 51% and 72% of this population, compared to rates of up to 26.6% in cisgender women. The negative impact of these conditions is likely amplified due to limited access to safe and affirming healthcare. Despite this high prevalence rate, there is limited research investigating the prevalence, presentation or management options for trans and gender diverse people with endometriosis. Cisgender women with endometriosis report barriers to accessing care, with lengthy times to diagnosis and limited treatment options available. However, barriers for trans and gender diverse individuals are enhanced by physician bias and lack of education in gender-affirming care. This is reflected in stories of discrimination and denial of basic healthcare. A healthcare environment built on the presumption that gynaecological patients are women, others trans and gender diverse patients, which can result in avoidance of needed medical care. A lack of knowledge of gender-affirming care alongside healthcare provider bias highlights a need for gender-affirming care and bias reduction training in undergraduate healthcare provider curricula. Research to date assessing current curriculum in Australia and Aotearoa (New Zealand) shows limited inclusion of lesbian, gay, bisexual, trans, queer, intersex, asexual and other related identities content as a whole with gender-affirming care being among the least-frequently addressed topics. This review will detail barriers to accessing gender-affirming healthcare specific to gynaecology, interweaving the experiences of a non-binary individual seeking access to gender-affirming endometriosis care.

Transgender and gender diverse people with endometriosis: a perspective on affirming gynaecological careTransgender and gender diverse people have limited access to safe and affirming healthcare. Barriers to accessing care are particularly prominent for those presumed female at birth attempting to access gynaecological care for conditions, such as endometriosis or chronic pelvic pain (CPP). A key barrier to safe and affirming healthcare for this population is a lack of inclusion of trans and gender diverse health in healthcare provider curriculum. The dearth of healthcare providers knowledgeable in gender-affirming care results in healthcare discrimination and poorer health outcomes for trans and gender diverse people.

[Rules of acupoint selection and pattern-acupoint relationship in treatment with acupuncture and moxibustion for endometriosis based on complex network analysis technology].

OBJECTIVE: To explore the rules of acupoint selection and pattern-acupoint relationship in treatment with acupuncture and moxibustion for endometriosis (EMs) based on complex network analysis technology. METHODS: The articles for clinical trial of EMs treated with acupuncture and moxibustion were searched from CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase and Cochrane Library from the inception of the databases to December 14, 2022. Using Microsoft Excel 2019 software, the database was established to collect the use frequency of acupoint, meridian tropism, location and pattern-acupoint relationship. SPSS Modeler 18.0 Apriori algorithm was adopted to conduct the association rule analysis, Cytoscape3.7.2 software was used to plot the complex co-occurrence network map; and SPSS Statistics 26.0 was adopted to perform hierarchical cluster analysis on high-frequency acupoints and a tree diagram was drawn. RESULTS: A total of 163 articles were included, and 167 core acupoint prescriptions and 74 pattern-associated acupoint prescriptions were extracted, involving 92 acupoints, with a cumulative frequency of 1 223 times. The top five acupoints with the highest use frequency were Guanyuan (CV 4), Sanyinjiao (SP 6), Zhongji (CV 3), Zigong (EX-CA 1) and Qihai (CV 6). The selected acupoints were mostly distributed in the chest, abdomen and lower limbs; and the involved meridians included the conception vessel, the spleen meridian of foot-taiyin and the stomach meridian of foot-yangming. The acupoint compatibility of high frequency referred to Guanyuan (CV 4) - Sanyinjiao (SP 6), Guanyuan (CV 4) - Zhongji (CV 3), and Guanyuan (CV 4) - Zigong (EX-CA 1). The close association was presented among Guanyuan (CV 4), Sanyinjiao (SP 6), Qihai (CV 6) and Zhongji (CV 3), which had the strongest connection with the other acupoints; among the top 25 acupoints with the highest use frequency, 5 acupoint prescriptions with high frequency were obtained by the cluster analysis. Guanyuan (CV 4), Qihai (CV 6), Sanyinjiao (SP 6), Zigong (EX-CA 1) and Zhongji (CV 3) were selected for cold and blood stagnation; Guanyuan (CV 4), Sanyinjiao (SP 6), Zhongji (CV 3), Dahe (KI 12) and Taixi (KI 3) for kidney deficiency and blood stagnation; Zhongji (CV 3), Guanyuan (CV 4), Sanyinjiao (SP 6), Xuehai (SP 10) and Diji (SP 8) for qi and blood stagnation; Qihai (CV 6), Guanyuan (CV 4), Zusanli (ST 36), Xuehai (SP 10), and Zigong (EX-CA 1) for qi deficiency and blood stagnation; Sanyinjiao (SP 6), Fenglong (ST 40), Zhongliao (BL 33), Ciliao (BL 32) and Xialiao (BL 34) for interaction of phlegm and stasis; and Daheng (SP 15), Guanyuan (CV 4), Zhongji (CV 3), Qihai (CV 6) and Zhongwan (CV 12) for retention of damp and heat. CONCLUSION: The core acupoints are Guanyuan (CV 4), Sanyinjiao (SP 6), Zhongji (CV 3), Qihai (CV 6) and Zigong (EX-CA 1) in treatment of endometriosis with acupuncture and moxibustion. Six patterns/syndromes are involved in clinical practice. In terms of the properties, functions and indications, the supplementary acupoints are selected on the basis of the core acupoints for different patterns/sydnromes of the disease.

Virtual Mindfulness-Based Therapy for the Management of Endometriosis Chronic Pelvic Pain: A Novel Delivery Platform to Increase Access to Care.

OBJECTIVES: This study assessed the effectiveness of a virtual mindfulness-based stress reduction (MBSR) program to improve quality of life and pain in people with endometriosis. METHODS: This was a multiple-method, before and after study design. Fifteen patients with a clinical or surgical diagnosis of endometriosis were recruited from a Canadian outpatient gynaecology clinic. Participants completed the Endometriosis Health Profile, a validated survey tool, and a pain medication use questionnaire before and after a virtual 8-week MBSR program run by an experienced social worker. A focus group was held upon completion of the program to assess participants' experiences using mindfulness for management of endometriosis symptoms. Quantitative data was analyzed with paired-samples t tests. Qualitative data was thematically analyzed. RESULTS: A total of 67% of people enrolled completed the MBSR course (10/15). Following the MBSR program, participants had a statistically significant decrease in 4 components of the Endometriosis Health Profile: control and powerlessness (P = 0.012), emotional well-being (P = 0.048), social support (P = 0.030), and self-image (P = 0.014). There was no change in pain scores or medication use. Participants felt the program's benefits came from a sense of community, education about their condition, and application of mindfulness tools when approaching pain. Participants felt more comfortable with the virtual format over in-person sessions. CONCLUSIONS: A virtual MBSR course can improve quality of life domains in people with endometriosis. The virtual format was effective and preferred by participants. Virtual MBSR programs may increase access to this type of care.

Pathophysiology and Clinical Implications of Ovarian Endometriomas.

Ovarian endometriomas affect many patients with endometriosis and have significant effects on quality of life, fertility, and risk of malignancy. Endometriomas range from small (1-3 cm), densely fibrotic cysts to large (20 cm or greater) cysts with varying degrees of fibrosis. Endometriomas are hypothesized to form from endometriotic invasion or metaplasia of functional cysts or alternatively from ovarian surface endometriosis that bleeds into the ovarian cortex. Different mechanisms of endometrioma formation may help explain the phenotypic variability observed among endometriomas. Laparoscopic surgery is the preferred first-line modality of diagnosis and treatment of endometriomas. Ovarian cystectomy is preferred over cyst ablation or sclerotherapy for enabling pathologic diagnosis, improving symptoms, preventing recurrence, and optimizing fertility outcomes. Cystectomy for small, densely adherent endometriomas is made challenging by dense fibrosis of the cyst capsule obliterating the plane with normal ovarian cortex, whereas cystectomy for large endometriomas can carry unique challenges as a result of adhesions between the cyst and pelvic structures. Preoperative and postoperative hormonal suppression can improve operative outcomes and decrease the risk of endometrioma recurrence. Whether the optimal management, fertility consequences, and malignant potential of endometriomas vary on the basis of size and phenotype remains to be fully explored.

Learning to cope with the reality of endometriosis: A mixed-methods analysis of psychological therapy in women with endometriosis.

OBJECTIVES: Despite the need and uptake of mental health support by women with endometriosis, no research to date has explored their experience of psychological therapy. We aimed to understand the factors that predict engagement in psychological therapy by Australian women with endometriosis and to qualitative explore their experience of psychological support. DESIGN: Mixed-methods design. METHODS: A total of 200 women with self-reported endometriosis were recruited from the community. We explored; (1) the demographic and clinical predictors of engagement in psychological therapy, (2) the psychological approaches that seem most valuable to women in the management of endometriosis and (3) their experience engaging in psychological therapy for endometriosis. RESULTS: Nearly half of women reported to have seen a psychologist within the past year, particularly for pain. Younger age (OR, .94; 95% CI, .886-.993), depressive symptoms (OR, 1.05; 95% CI, 1.002-1.099), and working part time compared to full time (OR, 2.17, 95% CI, 1.012-4.668), increased the likelihood of engaging in psychological therapy. Template thematic analysis identified three themes; (1) endometriosis and pain have multi-faceted psychological effects, (2) psychological support is sought to adjust and live with endometriosis and (3) there are helpful and unhelpful psychological tools for women with endometriosis. CONCLUSIONS: Our findings support the use of psychological therapy in the management of endometriosis, and the need for psychological therapy to acknowledge the chronicity and impact of symptoms, to enlist multidisciplinary support and to consider alternative options. Further advocacy is required to educate women on the benefits of psychological therapy for endometriosis.

Safety and Clinical Outcomes of Two-Session Catheter-Directed Sclerotherapy Using Ethanol for Endometrioma.

PURPOSE: To evaluate the safety and clinical outcome of two-session catheter-directed sclerotherapy (CDS) with 99% ethanol in patients with endometrioma. MATERIALS AND METHODS: This prospective study was approved by the institutional review board with written informed consent obtained from all participants and was registered on clinicaltrial.gov. Consecutive patients with ovarian endometrioma between June 2020 and March 2023 were prospectively evaluated for two sessions of CDS. After successful transvaginal ultrasound-guided puncture of the endometrioma, the biopsy needle was exchanged for a 7- or 8.5-F catheter for aspiration and ethanol injection. The catheter was retained in situ for a second session the next day. Endometrioma volume was measured on ultrasound before and 1, 3, and 6 months after CDS, and volume reduction ratio (VRR) was calculated. Serum anti-Müllerian hormone (AMH) was measured before and 6 months after CDS to assess ovarian reserve. RESULTS: Thirty-one endometriomas in 22 patients (mean age, 31.0 years; range, 19-44 years) were treated; 28 endometriomas were successfully treated with two-session CDS, while one session was incomplete in three endometriomas in three patients due to contrast medium leakage or pain. Minor procedure-related complications developed in four patients and resolved spontaneously before discharge on the same day of the second session. No recurrence was identified during follow-up. At the 6-month follow-up, the mean endometrioma diameter decreased from 5.5 ± 1.7 to 1.4 ± 0.9 cm (P < 0.001), and the serum AMH level was lowered without statistical significance (1.37 ± 0.96 ng/mL vs. 1.18 ± 0.92 ng/mL; P = 0.170). VRRs at 1, 3, and 6 months after CDS were 84.3 ± 13.7%, 94.3 ± 5.8%, and 96.4 ± 4.7%, respectively. CONCLUSION: Two-session CDS with 99% ethanol is safe, feasible, and effective for treating endometrioma with the ovarian function well preserved.