Laparoscopic management of endometriomas using a combined technique of excisional (cystectomy) and ablative surgery

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.

Surgical Management of Ovarian Endometrioma: Impact on Ovarian Reserve Parameters and Reproductive Outcomes

Ovarian endometriomas have a negative impact on a patient's reproductive potential and are likely to cause a reduction in ovarian reserve. The most commonly employed ovarian reserve parameters are anti-Müllerian hormone (AMH) and antral follicular count (AFC). Surgical management options of endometrioma include cystectomy, ablative methods, ethanol sclerotherapy and combined techniques. The optimal surgical approach remains a matter of debate. Our review aimed to summarize the literature on the impact of surgical management of endometrioma on AMH, AFC and fertility outcomes. Cystectomy may reduce recurrence rates and increase chances of spontaneous conception. However, a postoperative reduction in AMH is to be anticipated, despite there being evidence of recovery during follow-up. The reduction in ovarian reserve is likely multi-factorial. Cystectomy does not appear to significantly reduce, and may even increase, AFC. Ablative methods achieve an ovarian-tissue-sparing effect, and improved ovarian reserve, compared to cystectomy, has been demonstrated. A single study reported on AMH and AFC post sclerotherapy, and both were significantly reduced. AMH levels may be useful in predicting the chances of conception postoperatively. None of the aforementioned approaches has a clearly demonstrated superiority in terms of overall chances of conception. Surgical management of endometrioma may, overall, improve the probability of pregnancy. Evidence on its value before medically assisted reproduction (MAR) is conflicting; however, a combination of surgery followed by MAR may achieve the optimal fertility outcome. In view of the complexity of available evidence, individualization of care, combined with optimal surgical technique, is highly recommended.

In the thicket of fears, doubts, and murky facts: some reflections on treatment modalities for endometriosis-associated pain

Endometriosis-associated pain can be managed by either surgery or hormonal therapy. The final decision as to which treatment modality to take is based on efficacy and possible complications of different treatment modalities, risk of recurrence, and the patient's wishes and preferences. But in the thicket of fears, doubts, and murky facts, the choice may ultimately be the trade-off between irrational fears and ignorance versus scientific evidence. We elaborate some pros and cons of the two treatment modalities and highlight some notable downsides of hormonal therapy, in particular the possible yet unquantified risk of long-term hormonal therapy for malignant transformation, perhaps with the only exception of combined oral contraceptives. Thus, when discussing with patients, we advocate the approach of discussing the advantages and disadvantages of all treatment options in detail, accounting for the known pros and cons with a full understanding of the predictive irrationality of human beings. For endometriosis-associated pain, surgery is definitely not a failure of medicine but, rather, a viable option, especially given the recently surfaced undercurrent of wariness and dissatisfaction with the current hormonal drugs among patients with endometriosis. Above all, there is a pressing need to fill the knowledge gap of perioperative interventions intended to reduce the risk of recurrence and to fulfill the demand for the development of safe and efficacious non-hormonal therapeutics.

Fertility Preservation in Women with Endometriosis

Several mechanisms have been implicated in the pathogenesis of endometriosis-related infertility. For patients considering surgery, the risk of iatrogenic injury is among the most important factors in the context of fertility preservation, along with age and individual reproductive goals. In the case of endometrioma excision, evidence overwhelmingly demonstrates the negative impact of surgery on ovarian reserve, with significant reductions in antimullerian hormone (up to 30% in unilateral versus up to 44% in bilateral endometriomas). The surgical endometriosis patient should be thoroughly counseled regarding fertility preservation and discussion should include tissue, embryo, and oocyte cryopreservation options. For the latter, data support cryopreservation of 10-15 oocytes in women ≤35 years and over 20 for those >35 years for a realistic chance to achieve one or more live births. When performing surgical interventions for endometriosis, reproductive surgeons should employ fertility-conserving surgical methods to reduce the likelihood of postoperative iatrogenic diminished ovarian reserve.

Guideline No. 435: Minimally Invasive Surgery in Fertility Therapy

OBJECTIVE

To evaluate the benefits and risks of minimally invasive procedures in the management of patients with infertility and provide guidance to gynaecologists who manage common conditions in these patients.

TARGET POPULATION

Patients with infertility (inability to conceive after 12 months of unprotected intercourse) undergoing investigation and treatment.

BENEFITS, HARMS, AND COSTS

Minimally invasive reproductive surgery can be used to treat infertility, improve fertility treatment outcomes, or preserve fertility. All surgery has risks and associated complications. Reproductive surgery may not improve fertility outcomes and may, in some instances, damage ovarian reserve. All procedures have costs, which are borne either by the patient or their health insurance provider.

EVIDENCE

We searched English-language articles from January 2010 to May 2021 in PubMed/MEDLINE, Embase, Science Direct, Scopus, and Cochrane Library (see Appendix A for MeSH search terms).

VALIDATION METHODS

The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See online Appendix B (Tables B1 for definitions and B2 for interpretations of strong and conditional [weak] recommendations).

INTENDED AUDIENCE

Gynaecologists who manage common conditions in patients with infertility.

SUMMARY STATEMENTS

RECOMMENDATIONS.

Directive clinique no 435 : Chirurgie minimalement invasive dans les traitements de fertilité

OBJECTIF

Évaluer les risques et bénéfices de la chirurgie minimalement invasive dans la prise en charge des patientes atteintes d'infertilité et fournir des conseils aux gynécologues qui prennent en charge les problèmes les plus fréquents chez ces patientes.

POPULATION CIBLE

Patientes atteintes d'infertilité (incapacité à concevoir après 12 mois de rapports sexuels non protégés) en processus diagnostique ou sous traitement. BéNéFICES, RISQUES ET COûTS: On peut recourir à la chirurgie de la reproduction minimalement invasive pour traiter l'infertilité, améliorer les résultats des traitements de fertilité ou préserver la fertilité. Toutes les interventions chirurgicales comportent des risques et des complications associées. La chirurgie de la reproduction n'améliore pas toujours la fertilité et peut, dans certains cas, compromettre la réserve ovarienne. Toutes les interventions entraînent des coûts, lesquels sont assumés par la patiente ou son assureur. DONNéES PROBANTES: Des recherches ont été faites dans les bases de données PubMed-Medline, Embase, Science Direct, Scopus et Cochrane Library pour répertorier les articles publiés en anglais dans la période de janvier 2010 à mai 2021 (voir les termes de recherche MeSH à l'annexe A). MéTHODES DE VALIDATION: Les auteurs ont évalué la qualité des données probantes et la force des recommandations en utilisant le cadre méthodologique GRADE (Grading of Recommendations Assessment, Development and Evaluation). Voir l'annexe B en ligne (tableau B1 pour les définitions et tableau B2 pour l'interprétation des recommandations fortes et conditionnelles [faibles]). PROFESSIONNELS CONCERNéS: Gynécologues qui prennent en charge les affections courantes chez les patientes atteintes d'infertilité. DÉCLARATIONS SOMMAIRES: RECOMMANDATIONS.

Expectant, Medical, and Surgical Management of Ovarian Endometriomas

Management options for ovarian endometriomas include expectant management, medical treatment, surgical treatment, in vitro fertilization (IVF), or a combination of the above. The choice of management depends on many clinical parameters that should be taken into consideration, the first of which is the main presenting symptom. Most patients are today referred to medical therapy as a first option in the case of associated pain, and to IVF in the case of associated infertility. When both symptoms are present, usually surgery is the preferred approach. Recently, however, surgical excision of an ovarian endometrioma has been associated with a postoperative reduction in the ovarian reserve, and recent guidelines suggest that the clinician should caution the patient as to the possible damage to the ovarian reserve in the case of surgery. However, evidence has been published as to a possible detrimental effect of the ovarian endometrioma on the ovarian reserve even if expectant management is followed. In this review, the current evidence on the conservative management of ovarian endometriomas, with particular focus on the issue of the ovarian reserve, is evaluated, and the different surgical techniques for the treatment of ovarian endometriomas are discussed.

Impact of the hemostatic approach after laparoscopic endometrioma excision on ovarian reserve: Systematic review and network meta-analysis of randomized controlled trials

BACKGROUND

Laparoscopic excision of endometrioma and subsequent hemostasis have detrimental effects on ovarian reserve.

OBJECTIVES

To evaluate which hemostatic approach after stripping cystectomy shows less damage on ovarian reserve.

SEARCH STRATEGY

Embase, MEDLINE, Scopus, Scielo.br, LILACS, Cochrane Library at the CENTRAL Register of Controlled Trials, Clinicaltrials.gov, CINAHL, conference abstracts, and International Clinical Trials Registry Platform were searched from inception until April 2022.

SELECTION CRITERIA

Randomized controlled trials of women undergoing laparoscopic endometrioma excision that compared at least two hemostatic approaches.

DATA COLLECTION AND ANALYSIS

Relevant data were extracted and tabulated. Network meta-analysis based on random-effects model for mixed multiple treatment to rank hemostatic strategies using the surface under the cumulative ranking curve area (SUCRA) was performed. Quality assessment was performed using Cochrane criteria. The primary outcome was serum antimullerian hormone levels 3 months after surgery.

MAIN RESULTS

Ten studies, including 748 women, were selected. Suturing the ovary with barbed suture (SUCRA, 82.80%) seem the most effective strategy to avoid antimullerian hormone reduction. Similarly, for ultrasonographic antral follicular count, barbed (SUCRA, 30.70%) and simple suture (SUCRA, 30.70%) were ranked the best choices. Ovarian suturing with simple suture demonstrated lower follicle-stimulating hormone levels (SUCRA, 88.70%).

CONCLUSIONS

Suturing the ovary, with simple or barbed suture, seems the most effective approach to keep ovarian reserve higher.

Impact of cystectomy versus ablation for endometrioma on ovarian reserve: a systematic review and meta-analysis

OBJECTIVE

To investigate whether cystectomy or ablation for endometrioma has less impact on ovarian reserve as evaluated by antral follicle count (AFC) and antimüllerian hormone (AMH) levels.

DESIGN

Systematic review and meta-analysis.

SETTING

Not applicable.

PATIENT(S)

Patients with endometriomas undergoing cystectomy or ablation.

INTERVENTION(S)

All prospective studies comparing cystectomy with ablation for endometrioma in the PubMed, EMBASE, MEDLINE and Web of Science until April 3, 2022 were retrieved and reviewed. Medical treatment used as adjuvant therapy for the surgery was excluded. Two authors assessed eligibility and risk of bias independently. The statistical data were pooled using the Review Manager software.

MAIN OUTCOME MEASURE(S)

The changes of AMH levels and AFC values in cystectomy group and ablation group, including intergroup comparisons and intragroup comparisons.

RESULT(S)

Four randomized clinical trials and 2 prospective cohort studies were eligible for the meta-analysis, with a total of 294 patients. In the intergroup comparisons, preoperative AFC values were similar with low heterogeneity, but postoperative AFC values were significantly lower in cystectomy than ablation (mean differences [MD], -1.33; 95% credible interval, -2.15 to -0.51; I² = 57%). In the intragroup comparisons of AFC values, sensitivity analyses showed a significant decrease in cystectomy (MD, -1.93; 95% credible interval, -2.40 to -1.45; I² = 0%) at 6-month follow-up, compared with no reduction in ablation. The intragroup comparisons of AMH levels supported negative effects on ovarian reserve of both cystectomy (MD, -1.26; 95% credible interval, -1.64 to -0.88; I² = 45%) and ablation (MD, -0.70; 95% credible interval, -1.07 to -0.32; I² = 0%).

CONCLUSION(S)

Both ablation and cystectomy have significantly detrimental effects on ovarian reserve as evaluated by AMH, but the ablation causes relatively less damage to ovarian reserve as appraised by AFC.

CLINICAL TRIAL REGISTRATION NUMBER

CRD42020152823;PROSPERO (york.ac.uk).

Impact on ovarian reserve and fertility using carbon dioxide laser for endometriosis treatment: a systematic review

BackgroundThe application of carbon dioxide (CO₂) laser for laparoscopic gynecologic surgery was introduced in 1979 and spread after improving instrumentation, due to the versatility of the CO₂ laser technology and the parallel increase of laparoscopic use. In a gynecologic setting, laser laparoscopy has been demonstrated to be effective in treating infertility and pain associated with mild to severe endometriosis.Aim and methods: This document aims at conducting a systematic review to provide a comprehensive literature overview regarding the rationale, indications, safety, and efficacy of CO₂ laser treatment of endometriosis and related outcomes on ovarian reserve and fertility.ResultsCO₂ laser seems to lead to lower heat damage in the ovarian tissue than bipolar energy during endometriomas treatment. Moreover, several reports have pointed out that laser vaporization allows to selectively destroy the endometrioma wall's internal surface, preserving the pericystic fibrotic capsule or the adjacent healthy ovarian cortex. Despite this, robust data we have so far indicates that the most effective laparoscopic approach for managing endometriomas is the traditional excisional technique providing better postoperative outcomes than drainage and electrocoagulation, and laser treatment. Data about fertility after treatment of deep infiltrating endometriosis (DIE) using dioxide laser are emerging but very poor.ConclusionsCurrent scientific evidence in this field is inconclusive, and the debate about the safety and efficacy of the CO₂ laser on fertility outcomes is still ongoing. Further randomized case-control studies are mandatory to attain more consistent evidence.

Endometriosis and Infertility: A Long-Life Approach to Preserve Reproductive Integrity

Laparoscopic surgery was originally considered the gold standard in the treatment of endometriosis-related infertility. Assisted reproductive technology (ART) was indicated as second-line treatment or in the case of male factor. The combined approach of surgery followed by ART proved to offer higher chances of pregnancy in infertile women with endometriosis. However, it was highlighted how pelvic surgery for endometriosis, especially in cases of ovarian endometriomas, could cause iatrogenic damage due to ovarian reserve loss, adhesion formation (scarring), and ischemic damage. Furthermore, in the last few years, the trend to delay the first childbirth, recent technological advances in ultrasound diagnosis, and technological progress in clinical and laboratory aspects of ART have certainly influenced the approach to infertility and endometriosis with, ART assuming a more relevant role. Management of endometriosis should take into account that the disease is chronic and involves the reproductive system. Consequently, treatment and counselling should aim to preserve the chances of pregnancy for the patient, even if it is not associated with infertility. This review will analyse the evolution of the management of infertility associated with endometriosis and propose an algorithm for treatment decision-making based on the most recent acquisitions.

Efficacy of ablation and sclerotherapy for the management of ovarian endometrioma: A narrative review

Ovarian cystectomy is the preferred technique for the surgical management of ovarian endometrioma. However, other techniques such as ablation or sclerotherapy are also commonly used. The aim of this review is to summarize information regarding the efficacy of ablation and sclerotherapy compared to cystectomy in terms of ovarian reserve, the recurrence rate, and the pregnancy rate. Several studies comparing ablation versus cystectomy or sclerotherapy versus cystectomy in terms of the serum anti-Müllerian hormone (AMH) decrement, endometrioma recurrence, or the pregnancy rate were identified and summarized. Both ablation and cystectomy have a negative impact on ovarian reserve, but ablation results in a smaller serum AMH decrement than cystectomy. Nonetheless, the recurrence rate is higher after ablation than after cystectomy. More studies are needed to demonstrate whether the pregnancy rate is different according to whether patients undergo ablation or cystectomy. The evidence remains inconclusive regarding whether sclerotherapy is better than cystectomy in terms of ovarian reserve. The recurrence rates appear to be similar between sclerotherapy and cystectomy. There is not yet concrete evidence that sclerotherapy helps to improve the pregnancy rate via in vitro fertilization in comparison to cystectomy or no sclerotherapy.

Endometrioma and assisted reproductive technology: a review

PURPOSE

Endometriomas are a common cause of infertility necessitating assisted reproductive technology (ART). It had been previously thought that surgical removal of the endometriomas prior to ART would improve reproductive outcomes, but recent data suggests that surgical cystectomy might affect the ovarian reserve, decreasing the chances of ART success. The aim of this article is to review the literature on the effects of endometrioma surgery on ART outcomes providing an overview of the current evidence and assessing the need for further studies.

METHODS

A literature search was performed using PubMed and MEDLINE databases to identify studies that discuss endometriomas and assisted reproductive technology before versus after surgery.

RESULTS

In women with an endometrioma requiring ART, growing evidence suggests that surgery might result in damage to the ovarian reserve and further decrease chances of fertility. However, pregnancy rates, implantation rates, fertilization rates, and live birth rates seemed to be consistently similar across both groups.

CONCLUSION

The current evidence is inconclusive on whether endometriomas should be surgically removed prior to ART. Further large randomized controlled trials are needed for a definite answer, and until then, management should be individualized.

Managing endometrioma to optimize future fertility

The management of endometriomas in women wishing to preserve their fertility is complex. While surgery can help to achieve pregnancy in some, it may also have a detrimental effect on a woman's ovarian reserve. The present article reviews the impact of endometriomas on fertility and the different management approaches that should be considered in women who wish to preserve their fertility. This study also reviews the role of assisted reproduction in the setting of endometriomas, and the evolving role of oocyte cryopreservation for this benign but progressive disease. Using evidence from the latest guidelines and major publications, we emphasize the need to consider the woman's future fertility when navigating the diverse range of management strategies available, and outline an evidence-based framework to help facilitate fertility-friendly discussion, counseling and management of this complex disease.

An International Terminology for Endometriosis, 2021

OBJECTIVE

Different classification systems have been developed for endometriosis, using different definitions for the disease, the different subtypes, symptoms and treatments. In addition, an International Glossary on Infertility and Fertility Care has been published in 2017 by the International Committee for Monitoring Assisted Reproductive Technologies (ICMART) in collaboration with other organisations. An international working group convened over the development of a classification or descriptive system for endometriosis. As a basis for such system, a terminology for endometriosis was considered a condition sine qua non. The aim of the current study was to develop a set of terms and definitions be prepared on endometriosis that would be the basis for standardization in disease description, classification and research.

DATA SOURCES

The working group listed a number of terms relevant to be included in the terminology, documented currently used and published definitions, and discussed and adapted them until consensus was reached within the working group. Following stakeholder review, further terms were added, and definitions further clarified. Although definitions were collected through published literature, the final set of terms and definitions is to be considered consensus-based. After finalization of the first draft, the members of the international societies and other stakeholders were consulted for feedback and comments, which lead to further adaptations.

METHODS OF STUDY SELECTION

na TABULATION, INTEGRATION, AND RESULTS: A list of 49 terms and definitions in the field of endometriosis is presented, including a definition for endometriosis and its subtypes, different locations, interventions, symptoms and outcomes. Endometriosis is defined as a disease characterized by the presence of endometrium-like epithelium and/or stroma outside the endometrium and myometrium, usually with an associated inflammatory process.

CONCLUSION

The current paper outlines a list of 49 terms and definitions in the field of endometriosis. The application of the defined terms aims to facilitate harmonization in endometriosis research and clinical practice. Future research may require further refinement of the presented definitions.

An international terminology for endometriosis, 2021. Hum Reprod Open 2021;2021:hoab029. [PMID: 34693033 PMCID: PMC8530702 DOI: 10.1093/hropen/hoab029]

STUDY QUESTION

Can a set of terms and definitions be prepared on endometriosis that would be the basis for standardization in disease description, classification and research?

SUMMARY ANSWER

The current paper outlines a list of 49 terms and definitions in the field of endometriosis.

WHAT IS KNOWN ALREADY

Different classification systems have been developed for endometriosis, using different definitions for the disease, the different subtypes, symptoms and treatments. In addition, an International Glossary on Infertility and Fertility Care was published in 2017 by the International Committee for Monitoring Assisted Reproductive Technologies (ICMART) in collaboration with other organisations.

STUDY DESIGN SIZE DURATION

An international working group convened over the development of a classification or descriptive system for endometriosis. As a basis for such a system, a terminology for endometriosis was considered a condition sine qua non. The working group listed a number of terms relevant to be included in the terminology, documented currently used and published definitions, and discussed and adapted them until consensus was reached within the working group. Following stakeholder review, further terms were added, and definitions further clarified.

PARTICIPANTS/MATERIALS SETTING METHODS

Although definitions were collected through published literature, the final set of terms and definitions is to be considered consensus-based. After finalization of the first draft, the members of the international societies and other stakeholders were consulted for feedback and comments, which led to further adaptations.

MAIN RESULTS AND THE ROLE OF CHANCE

A list of 49 terms and definitions in the field of endometriosis is presented, including a definition for endometriosis and its subtypes, different locations, interventions, symptoms and outcomes. Endometriosis is defined as a disease characterized by the presence of endometrium-like epithelium and/or stroma outside the endometrium and myometrium, usually with an associated inflammatory process.

LIMITATIONS REASONS FOR CAUTION

Future research may require further refinement of the presented definitions.

WIDER IMPLICATIONS OF THE FINDINGS

The application of the defined terms aims to facilitate harmonization in endometriosis research and clinical practice.

STUDY FUNDING/COMPETING INTERESTS

The meetings and activities of the working group were funded by the American Association of Gynecologic Laparoscopists, European Society for Gynecological Endoscopy, European Society of Human Reproduction and Embryology and World Endometriosis Society. A.W.H. reports grant funding from the MRC, NIHR, CSO, Wellbeing of Women, Roche Diagnostics, Astra Zeneca, Ferring, Charles Wolfson Charitable Trust, Standard Life, Consultancy fees from Roche Diagnostics, AbbVie, Nordic Pharma and Ferring, outside the submitted work. In addition, A.W.H. has a patent Serum biomarker for endometriosis pending. N.P.J. reports personal fees from Abbott, Guerbet, Myovant Sciences, Vifor Pharma, Roche Diagnostics outside the submitted work; he is also President of the World Endometriosis Society and chair of the trust board. S.M. reports grants and personal fees from AbbVie, and personal fees from Roche outside the submitted work. C.T. reports grants, non-financial support and other from Merck SA, non-financial support and other from Gedeon Richter, non-financial support from Ferring Pharmaceuticals, outside the submitted work and without private revenue. K.T.Z. reports grants from Bayer Healthcare, MDNA Life Sciences, Roche Diagnostics Inc, Volition Rx, outside the submitted work; she is also a Board member (Secretary) of the World Endometriosis Society and World Endometriosis Research Foundation, Research Advisory Board member of Wellbeing of Women, UK (research charity), and Chair, Research Directions Working Group, World Endometriosis Society. J.P reports personal fees from Hologic, Inc., outside the submitted work; he is also a member of the executive boards of ASRM and SRS. The other authors had nothing to disclose.

TRIAL REGISTRATION NUMBER

N/A.

Ovarian reserve in women with endometriosis under total cystectomy compared to partial cystectomy: A randomized clinical trial

Background

The standard procedure for ovarian endometriosis is laparoscopic excision of ovarian cysts and complete removal of the cyst capsule using the striping technique. Owing to the possibility of reducing ovarian reserve, and in some cases, the premature ovarian failure, the safety remains to be known.

Objective

To compare the ovarian reserve in women with endometriosis who underwent total cystectomy with partial cystectomy.

Materials and Methods

In this randomized clinical trial, 56 women with endometriosis who were referred to the Research and Clinical Center for Infertility and Shahid Sadoughi Hospital, Yazd, Iran between January and February 2020 were randomly assigned into two groups (n = 25/each); group I (total cystectomy) and group II (partial cystectomy). To assess the ovarian reserves, the anti-Müllerian hormone (AMH) level before and three months after surgery was measured and compared between the two groups.

Results

No significant difference was observed in the AMH levels before and after surgery (p = 0.52, p = 0.32, respectively). However, the mean reduction of AMH in total cystectomy group was significantly higher than the partial cystectomy (p = 0.001).

Conclusion

Cystectomy in women with endometriosis reduces ovarian reserve and can help maintain some ovarian reserve by performing partial instead of total cystectomy.

Surgical Techniques to Reduce the Diminished Ovarian Reserve Risk of Endometrial Cyst

AIM: The objective of the study was to report the endometriosis case and surgical technique to reduce the diminished ovarian reserve risk. CASE PRESENTATION: A 32-year-old woman was presented with the lower abdominal pain since 1 year ago, intermittent, and got worse during menstruation. The mobile cystic mass was palpable on the abdomen without pain during palpation. Vaginal examination showed mobile and smooth surface cystic mass was palpable, the upper pole was three fingers below the umbilicus, and lower pole was in line with pubic symphysis. Transvaginal ultrasonography (TVUS) showed uterus and right ovary enlargement; and unilocular cyst with homogenous echo pattern. There was a marked increase in CA-125. Based on International Tumor Analysis, the tumor was classified as B1 unilocular cyst and the malignancy risk index was 600. The patient was diagnosed with endometriosis and laparotomy cystectomy was performed. CONCLUSION: Patient was diagnosed with endometrial cyst and laparotomy cystectomy was performed as treatment. Ovarian cystectomy in infertile women was shown to have comparable ovarian reserve (OR), reduced pain symptoms, and increased conception among infertile patients.

Appropriate surgical management of ovarian endometrioma: excision or drainage?

Endometriosis negatively impacts the lives of countless women around the world. When medical management fails to improve quality of life often women are left making a decision whether or not to proceed with surgery. With endometriomas, patient's surgical options include complete surgical removal or drainage via laparoscopy. Here, we review the literature to discuss both techniques, excision and drainage of endometriomas, and what the research supports for endometrioma management.

Impact of Surgical Management of Endometrioma on AMH Levels and Pregnancy Rates: A Review of Recent Literature

Ovarian endometrioma are found in up to 40% of women with endometriosis and 50% of infertile women. The best surgical approach for endometrioma and its impact on pregnancy rates is still controversial. Therefore, we conducted a literature review on surgical management of ovarian endometrioma and its impact on pregnancy rates and ovarian reserve, assessed by anti-Müllerian hormone (AMH) serum levels. Ovarian cystectomy is the preferred technique, as it is associated with lower recurrence and higher spontaneous pregnancy rate. However, ablative approaches and combined techniques are becoming more popular as ovarian reserve is less affected and there are slightly higher pregnancy rates. Preoperative AMH level might be useful to predict the occurrence of pregnancy. In conclusion, AMH should be included in the preoperative evaluation of reproductive aged women with endometriosis. The surgical options for ovarian endometrioma should be individualized. The endometrioma ablation procedure seems to be the most promising treatment.

The Endometrioma Treatment Paradigm when Fertility Is Desired: A Systematic Review

OBJECTIVE

To establish an endometrioma treatment paradigm (decision tree) in the treatment of an ovarian endometrioma through the review of current literature.

DATA SOURCES

A thorough literature search, including PubMed, Google Scholar, and the Cochrane Library, was performed from April 2020 to July 2020. The review was completed by using the following keywords: METHODS OF STUDY SELECTION: Articles published in English that addressed the endometrioma in regard to the following were included: (1) diagnosis, (2) treatment of pain on the basis of size and/or surgical intervention, (3) treatment of fertility on the basis of size and/or surgical intervention, (4) surgical technique, (5) in vitro fertilization success on the basis of size and/or surgical intervention, (6) risk of rupture at the time of egg retrieval, (7) impact on the antimüllerian hormone and antral follicle count postsurgery, and (8) impact on implantation.

TABULATION, INTEGRATION, AND RESULTS

Fifty-six articles were included in this systematic review. While conducting this literature review, several themes were noted. In general, the literature on the ovarian endometrioma seems to be homogeneous in regard to imaging the endometrioma, excision rather than desiccation for an endometrioma ≥3-cm causing pain and/or infertility, minimal use of bipolar energy at the time of ovarian surgery, and risk of severe infection secondary to inadvertent rupture of cysts during egg retrieval. Conversely, studies on the ovarian endometrioma are much more heterogeneous in terms of surgery and assisted reproductive technology, that is, whether surgery should be performed. Certainly, an endometrioma ≥5-cm should be excised before assisted reproductive technology. Moreover, it seems that the antral follicle count and implantation may be enhanced with surgery.

CONCLUSION

By completing an extensive literature review, an easy-to-use algorithm for the diagnosis, evaluation, and treatment of endometriomas was developed to help clinicians in their treatment of patients with endometriosis in the short and long terms.

Ovarian reserve after three-step laparoscopic surgery for endometriomas utilizing dienogest: A pilot study

Purpose

Surgery for endometriomas may cause detrimental effects on ovarian reserve. We evaluated the safety of three‐step laparoscopic surgery for endometriomas utilizing dienogest in terms of post‐surgical ovarian reserve.

Methods

Twelve women received first look laparoscopy (FLL) with fenestration and drainage. Immediately after the surgery, they took oral dienogest 2 mg for three months; then, they received second look laparoscopy (SLL) with cystectomy. We compared serum AMH levels between women had three‐step management with dienogest, and another twelve women had conventional one‐step surgery without medications. In women had three‐step procedures, the changes in concentration of proinflammatory cytokines and chemokines in peritoneal fluids were evaluated.

Results

Serum AMH levels were significantly decreased after three months of dienogest following FLL. AMH levels were also significantly decreased 3‐6 months both after SLL and after one‐step surgery; however, recovery of serum AMH levels at 9‐12 months after surgery was evident in women had three‐step surgery comparing to those of one‐step surgery. Proinflammatory cytokines and chemokines in peritoneal fluids were downregulated at the time of SLL comparing to those of FLL.

Conclusions

Three‐step surgery with dienogest may be a beneficial approach to protect ovarian reserve. Dienogest may exert its effects in part by lowering proinflammatory cytokines and chemokines.

BCL-6 Overexpression as a Predictor for Endometriosis in Patients Undergoing In Vitro Fertilization

OBJECTIVE

To evaluate the positive predictive value (PPV) of endometrial BCL-6 overexpression as a noninvasive screening test endometriosis in patients undergoing in vitro fertilization (IVF).

METHODS

Retrospective cohort study at a university-affiliated private practice. Inclusion criteria were reproductive age females currently undergoing IVF with a diagnosis of unexplained infertility or unexplained recurrent pregnancy loss. Those with endometrial BCL-6 overexpression underwent laparoscopic surgery with an indication for treatment of suspected endometriosis. The primary outcome was the PPV of endometrial BCL-6 testing to surgically diagnose endometriosis. Statistical analysis was performed using SPSS v.25.0.

RESULTS

Seventy-five patients met inclusion criteria for our study. The PPV of BCL-6 testing for endometriosis was 96%. Of those patients without endometriosis, 100% had other inflammatory pelvic pathologies, which were diagnosed and treated at the time of laparoscopy.

CONCLUSIONS

Endometrial BCL-6 overexpression has a high PPV for diagnosing endometriosis and can help identify a patient population that may require surgical treatment before embryo transfer.

Endometrioma and reproductive issues: a well-informed patient may be the driver for change

Endometriosis affects a great proportion of women during their reproductive years and may impair female fertility in several ways. Ovarian endometrioma (OE) is the most frequent phenotype and growing evidence suggest an endometrioma-mediated damage to the ovary, ovarian reserve and oocyte quality. Traditionally, surgery has been the first-line treatment in cases of OE. Great advances in assisted reproduction and fertility preservation techniques opened new possibilities towards a more conservative approach. Herein we discuss multiple mechanisms responsible for the deterioration of the reproductive capacity in cases of OE as well as the pros and cons of different treatment options. The management of endometrioma-related subfertility remains controversial and it will depend on patient's intentions and priorities. In the "internet era" patients tend to be hyper-informed and more participative, but they are often misguided and misinformed. Thus, doctors should be able to convert these individuals into well-informed patients in order to facilitate the process of shared decision making, which is extremely relevant in the context of OEs.

Antral follicle count is reduced in the presence of endometriosis: a systematic review and meta-analysis

Studies suggest that the presence of endometriosis may lead to impaired ovarian reserve, while results evaluating the changes in antral follicle count (AFC) in endometriosis remain controversial. A systematic search returned 15 studies, of which nine compared AFC between patients with and without endometriosis, five articles reported differences in AFC between affected and unaffected ovaries in patients with unilateral ovarian endometriosis and one reported both of the above two situations. Overall results showed a significant decrease in AFC and anti-Müllerian hormone (AMH) and increase in serum FSH concentrations in patients with endometriosis when compared with controls. Additionally, the AFC for the ovary with the endometrioma was also significantly lower than that of the contralateral ovary in patients with unilateral ovarian endometriosis. Moreover, it appears that the AFC in patients with endometriosis where the ovaries are not affected or in early stage were not significantly different in the control group. These findings demonstrate that endometriosis is associated with reduced AFC and AMH and elevated serum concentrations of FSH, suggesting a reduction in ovarian reserve in patients with endometriosis, especially in those with ovarian endometrioma and advanced stage.

Fertility preservation in women for medical and social reasons: Oocytes vs ovarian tissue

Approximately 10% of cancers occur in women under 45 years of age. Chemotherapy, radiotherapy, and bone marrow transplantation cure more than 90% of cancer in women, but can result in premature ovarian insufficiency depending on follicular reserve, age, and drugs used. Some benign diseases are also indications for fertility preservation, particularly those requiring chemotherapy (like thalassemia and lupus), recurrent endometriosis, and family history of premature menopause. Social reasons also account for a large proportion of women who wish to postpone pregnancy. This article discusses the two main strategies for fertility preservation, namely oocyte vitrification and ovarian tissue cryopreservation, examining the indications and results of these options. Oocyte cryopreservation is an effective approach, but further studies are needed in cancer patients to ensure the excellent outcomes obtained in women without cancer or in egg donation programs. For prepubertal girls or cases where immediate therapy is required, cryopreservation of ovarian tissue is the only available option.

Ovarian responsiveness in assisted reproductive technology after CO2 fiber laser vaporization for endometrioma treatment: preliminary data

BACKGROUND

Data about endometrioma ablation using energies with little thermal spread reported good results in terms of ovarian reserve and postoperative pregnancy rates. The aim of the present study was to assess the impact of one step CO<inf>2</inf> fiber laser vaporization for endometrioma on subsequent controlled ovarian stimulation.

METHODS

This prospective observational cohort study included a consecutive series of infertile patients who have undergone CO<inf>2</inf> fibre laser vaporization for endometrioma treatment. The primary endpoint was to assess the number of follicles per ovary growing during controlled ovarian stimulation. The secondary endpoints included the number of oocytes retrieved, the total number of embryos obtained and the cumulative clinical pregnancy rate per patient treated.

RESULTS

Twenty-six patients underwent assisted reproductive technology after surgery for endometriosis-related infertility. In unilateral operated ovaries at the end of controlled ovarian stimulation no significant differences emerged from comparison of total recruited follicles in the operated ovary and in the contralateral ovary (P=0.55). If considering only bilateral endometriomas, the number of recruited follicles at the end of controlled ovarian stimulation was similar in both operated ovaries (P=0.79). The number of cumulative clinical pregnancies was 15 (57.7%; 95% CI: 38.5-76.9%). When comparing women aged ≤35 years to those aged >35 years, controlled ovarian stimulation outcomes were significantly higher in the younger patients. Age at the time of assisted reproductive technology was the only independent predictor for follicular growth during ovarian hyperstimulation (95% CI: -1.27 to -0.116, P=0.027).

CONCLUSIONS

CO2 laser-treated endometrioma is associated with favorable reproductive assisted reproductive technology outcomes.

Management of endometriosis-related infertility: Considerations and treatment options

Endometriosis is a common inflammatory disease in women of reproductive age and is one of the major causes of infertility. Endometriosis causes a sustained reduction of ovarian reserve through both physical mechanisms and inflammatory reactions, which result in the production of reactive oxygen species and tissue fibrosis. The severity of endometriosis is related to ovarian reserve. With regard to infertility treatment, medical therapy as a neoadjuvant or adjuvant to surgical therapy has no definite beneficial effect. Surgical treatment of endometriosis can lead to ovarian injury during the resection of endometriotic tissue, which leads to the deterioration of ovarian reserve. To overcome this disadvantage, a multistep technique has been proposed to minimize the reduction of ovarian reserve. When considering surgical treatment of endometriosis in patients experiencing infertility, it should be kept in mind that ovarian reserve can be reduced both due to endometriosis itself and by the process of removing endometriosis. In cases of mild- to moderate-stage endometriosis, intrauterine insemination with ovarian stimulation after surgical treatment may increase the likelihood of pregnancy. In cases of severe endometriosis, the characteristics of the patient should be considered in a multidisciplinary manner to determine the prioritization of treatment modalities, including surgical treatment and assisted reproduction methods such as in vitro fertilization. The risk of cancer, complications after pregnancy, and infection during oocyte retrieval should also be considered when making treatment decisions.

SOMA-trial: surgery or medication for women with an endometrioma? Study protocol for a randomised controlled trial and cohort study

STUDY QUESTIONS

The objective of this study is to evaluate the effectiveness and cost-effectiveness of surgical treatment of women suffering from pain due to an ovarian endometrioma when compared to treatment with medication (analgesia and/or hormones). The primary outcome is defined as successful pain reduction (-30% reduction of pain) measured by the numeric rating scale (NRS) after 6 months. Secondary outcomes include successful pain reduction after 12 and 18 months, quality of life, affective symptoms, cost-effectiveness, recurrence rate, need of adjuvant medication after surgery, ovarian reserve, adjuvant surgery and budget impact.

WHAT IS KNOWN ALREADY

Evidence suggests that both medication and surgical treatment of an ovarian endometrioma are effective in reducing pain and improving quality of life. However, there are no randomised studies that compare surgery to treatment with medication.

STUDY DESIGN SIZE DURATION

This study will be performed in a research network of university and teaching hospitals in the Netherlands. A multicentre randomised controlled trial and parallel prospective cohort study in patients with an ovarian endometrioma, with the exclusion of patients with deep endometriosis, will be conducted. After obtaining informed consent, eligible patients will be randomly allocated to either treatment arm (medication or surgery) by using web-based block randomisation stratified per centre. A successful pain reduction is set at a 30% decrease on the NRS at 6 months after randomisation. Based on a power of 80% and an alpha of 5% and using a continuity correction, a sample size of 69 patients in each treatment arm is needed. Accounting for a drop-out rate of 25% (i.e. loss to follow up), we need to include 92 patients in each treatment arm, i.e. 184 in total. Simultaneously, a cohort study will be performed for eligible patients who are not willing to be randomised because of a distinct preference for one of the two treatment arms. We intend to include 100 women in each treatment arm to enable standardization by inverse probability weighting, which means 200 patients in total. The expected inclusion period is 24 months with a follow-up of 18 months.

PARTICIPANTS/MATERIALS SETTING METHODS

Premenopausal women (age ≥ 18 years) with pain (dysmenorrhoea, pelvic pain or dyspareunia) and an ovarian endometrioma (cyst diameter ≥ 3 cm) who visit the outpatient clinic will make up the study population. Patients with signs of deep endometriosis will be excluded. The primary outcome is successful pain reduction, which is defined as a 30% decrease of pain on the NRS at 6 months after randomisation. Secondary outcomes include successful pain reduction after 12 and 18 months, quality of life and affective symptoms, cost-effectiveness (from a healthcare and societal perspective), number of participants needing additional surgery, need of adjuvant medication after surgery, ovarian reserve and recurrence rate of endometriomas. Measurements will be performed at baseline, 6 weeks and 6, 12 and 18 months after randomisation.

STUDY FUNDING/COMPETING INTERESTS

This study is funded by ZonMw, a Dutch organization for Health Research and Development, project number 80-85200-98-91041. The Department of Reproductive Medicine of the Amsterdam UMC location VUmc has received several research and educational grants from Guerbet, Merck KGaA and Ferring not related to the submitted work. B.W.J. Mol is supported by a NHMRC Practitioner Fellowship (GNT1082548) and reports consultancy for ObsEva, Merck KGaA and Guerbet. V. Mijatovic reports grants from Guerbet, grants from Merck and grants from Ferring outside the submitted work. All authors declare that they have no competing interests concerning this publication.

TRIAL REGISTRATION NUMBER

Dutch Trial Register (NTR 7447, http://www.trialregister.nl).

TRIAL REGISTRATION DATE

2 January 2019.

DATE OF FIRST PATIENT’S ENROLMENT

First inclusion in randomised controlled trial October 4, 2019. First inclusion in cohort May 22, 2019.

Ovarian Cystectomy: Stitching or Cauterizing - A Comparison Study of Anti-Mullerian Hormone Level Pre- and Postoperatively

Objective:

This study aimed to analyze the influence of laparoscopic management in an ovarian cyst as measured by serum anti-Mullerian hormone (AMH) levels, by comparing cautery and suturing techniques.

Subjects and Methods:

This prospective cohort study was conducted in the Department of Obstetrics and Gynecology, Faculty of Medicine Hasanuddin University/Dr. Wahidin Sudirohusodo Hospital, and several private hospitals in Makassar, Indonesia, from January 1, 2016, to January 31, 2018. A total sample of 90 subjects diagnosed with ovarian cysts underwent cystectomy by laparoscopy. Serum AMH level was examined in all participants both preoperatively and 1-month postoperatively. Participants were divided into two groups based on cautery and suturing techniques used in the surgery. Serum AMH levels obtained were statistically analyzed and compared between cautery and suturing groups. P < 0.05 was considered statistically significant.

Results:

The research result indicated a significant decrease of AMH level in each sample groups using cautery and suturing techniques; however, it was not significantly different if both methods were statistically compared (mean AMH: 1.13 ± 0.34 and 1.02 ± 0.15, with P > 0.05). Both the groups showed a greater decrease with a significant result in endometriotic cyst type and when adhesion was present during laparoscopy (P < 0.05). Other parameters such as unilateral/bilateral cyst and variety of cyst size were not showing significant differences (P > 0.05).

Conclusions:

This study showed that serum AMH levels clearly decreased after operative laparoscopy for different types of ovarian cysts in female patients; however, there is no significant difference regardless of surgical procedures.

The Role of Fertility Preservation in Women with Endometriosis: A Systematic Review

OBJECTIVE

To summarize the available evidence concerning fertility preservation techniques in the context of women with endometriosis.

DATA SOURCES

We searched for studies published between 1984 and 2019 on endometriosis and Assisted Reproductive Technology outcomes. We searched MEDLINE and PubMed and performed a manual search of reference lists within identified studies.

METHODS OF STUDY SELECTION

A total of 426 articles were identified, and 7 studies were eligible to be included for the systematic review. We included all published studies, excluding reviews, case reports, and animal studies.

TABULATION, INTEGRATION, AND RESULTS

Despite a significant increase in the number of studies addressing fertility preservation over the study period, we found a relative lack of evidence addressing the use of fertility preservation techniques in women with endometriosis. The studies identified included 2 case reports, 1 histological science study, and 4 retrospective cohort studies.

CONCLUSION

Women with endometriosis may benefit from fertility preservation techniques. However, there currently is a paucity of data in this population, especially when compared with other indications for fertility preservation. Although much knowledge can be translated from the oncofertility discipline, we have identified and discussed endometriosis-related changes to ovarian reserve and oocyte health that justify further well-designed research to confirm that fertility preservation outcomes are similar for women with endometriosis.

Fertility Preservation in Women With Endometriosis

Infertility affects 30% to 50% of women with endometriosis. Women with endometriosis are at risk of decreased ovarian reserve, both because of the pathophysiology of the disease and iatrogenic injury resulting from surgical intervention. Fertility preservation must occur at multiple levels, including careful selection of surgical candidates, avoidance of repeat procedures, and meticulous surgical technique. Fertility preservation with oocyte or ovarian tissue cryopreservation may be considered on an individual basis for women with endometriosis, particularly those at risk of bilateral ovarian injury, such as women with bilateral endometriomas.

Assessment of ovarian reserve after cystectomy versus 'one-step' laser vaporization in the treatment of ovarian endometrioma: a small randomized clinical trial

STUDY QUESTION

Does CO2 laser vaporization offer better results in treating endometrioma in terms of ovarian reserve preservation compared to traditional cystectomy?

SUMMARY ANSWER

Assessing both antral follicle count (AFC) and serum anti-Müllerian hormone (AMH) levels as measures of ovarian reserve, the results suggest that CO2 technology may be an alternative treatment for endometrioma, causing minimal damage to adjacent healthy ovarian tissue.

WHAT IS KNOWN ALREADY

Excisional surgery has been questioned as an ideal surgical approach for endometriomas because it is associated with potential reduction of ovarian reserve. Recently, vaporization with CO2 laser in-line-of-sight, according to the 'three-step procedure', has been proposed as the best method to preserve ovarian function. However, no randomized controlled trials have been conducted to compare cystectomy and 'one-step' CO2 fiber laser vaporization (without GnRH agonist therapy) with respect to the ovarian reserve.

STUDY DESIGN, SIZE, DURATION

A multicentre randomized clinical trial including 60 patients was performed between July 2017 and February 2018. Computerized randomization was conducted to allocate them in a proportion of 1:1 either to Group 1 (laparoscopic stripping: cystectomy) or Group 2 (CO2 laser vaporization). Patients in Group 1 underwent a standardized laparoscopic stripping technique; patients in Group 2 underwent drainage of the cyst content, biopsy and vaporization of the internal wall with a CO2 fiber laser. Patients underwent pelvic ultrasound examination to determine the AFC and blood sampling to determine AMH levels before surgery and at 1- and 3-month follow-up.

PARTICIPANTS/MATERIALS, SETTING, METHODS

Patients undergoing surgery for symptomatic endometriomas (infertility and/or pelvic pain) larger than 3 cm were randomized in two groups according to the surgical technique. Patients aged ≥40 years, or with deep infiltrating endometriosis/adenomyosis, or previously submitted to surgical procedures on the ovaries or to hysterectomy were excluded from the study. The primary endpoint was the comparison of intra-group AFC changes before and after surgery (ΔAFC) between the two groups (ΔAFC Group 1 versus ΔAFC Group 2). The secondary endpoint was the modification of serum AMH before and after surgery (ΔAMH) between the two groups (ΔAMH Group 1 versus ΔAMH Group 2).

MAIN RESULTS AND THE ROLE OF CHANCE

The AFC of the operated ovary was significantly increased in Group 2 (laser vaporization) compared with Group 1 (cystectomy) after surgery (Group 1: from 4.1 ± 2.2 [mean ± SD] at baseline to 6.3 ± 3.5 at 3-month follow-up; 95% CI: 0.9-4; Group 2: from 3.6 ± 1.9 at baseline to 8.6 ± 4.2 at 3-month follow-up; 95% CI: 2.8-7.1; P = 0.016); serum AMH levels were significantly reduced at 3 months in Group 1 (from 2.6 ± 1.4 ng/mL at baseline to 1.8 ± 0.8 ng/mL at 3-month follow-up; 95% CI: -1.3 to -0.2; P = 0.012) compared with no reduction in Group 2 (from 2.3 ± 1.1 ng/mL at baseline to 1.9 ± 0.9 ng/mL at 3-month follow-up; 95% CI: -1 to -0.2; P = 0.09).

LIMITATIONS, REASON FOR CAUTION

The key limitations of the trial were the low accuracy of AFC in estimating the ovarian reserve in ovaries with endometriomas, the limited study size and the relatively short follow-up, which do not allow us to draw definitive conclusions.

WIDER IMPLICATIONS OF THE FINDINGS

The present study suggests that CO2 technology may treat endometrioma with minimal damage to the adjacent healthy ovarian tissue; however, this study should be considered as a preliminary clinical trial, intended to stimulate future larger trials to address this clinically relevant issue.

STUDY FUNDING/COMPETING INTEREST(S)

None.

TRIAL REGISTRATION NUMBER

ClinicalTrials.gov NCT03227640.

TRIAL REGISTRATION DATE

9 July 2017.

DATE OF FIRST PATIENT’S ENROLLMENT

24 July 2017.

Endometrioma, fertility, and assisted reproductive treatments: connecting the dots

PURPOSE OF REVIEW

Surgery has traditionally been the primary treatment option for endometriosis-related infertility of any phenotype. However, advances and refinements of assisted reproductive technologies (ART) permit a more conservative approach in many scenarios. This review summarizes the latest findings in the field of reproductive medicine, which have supported a paradigm shift towards more conservative management of ovarian endometrioma.

RECENT FINDINGS

The presence of ovarian endometrioma per se is likely to impair ovarian reserve and alter ovarian functional anatomy. Conventional laparoscopic surgery is associated with significant risk of additional damage, and less invasive treatment approaches require further evaluation. With regard to infertile women with ovarian endometrioma who are scheduled for ART treatment, current data indicate that prior surgical intervention does not improve ART outcomes, and that controlled ovarian hyperstimulation (COH) does not affect quality of life or pain symptoms.

SUMMARY

Reproductive medicine physicians frequently encounter patients with ovarian endometrioma. The current evidence does not support the postponement of infertility treatment in favour of surgery, except in cases with severe symptoms or to improve follicle accessibility. Although these patients may exhibit diminished ovarian response to COH, their endometrial receptivity, aneuploidy rates, and fertility outcomes are similar to healthy controls. Surgery for ovarian endometrioma provides no benefits in ART treatments.

Modern approaches to surgical management of endometrioma

Formation of the ovarian endometrioma consists of implantation, invagination of the ovarian cortex, and adhesion formation. Progression is characterized by repeated injury and repair with degenerative changes. Already with a partially deprived ovarian reserve, resulting from the disease, surgical treatment carries a potential risk of further follicular deprivation. Surgery should therefore be performed with microsurgical precision by experienced hands. Early treatment can possibly prevent further progression. The adverse impact on ovarian reserve of the ablative approach has to be balanced against a lower recurrence rate of a cystectomy. Adapted surgical approaches like a two-step approach or a combination of excisional and ablative surgery has to be considered in case of a large endometrioma. Further studies on the possibility and advantages of sclerotherapy are warranted. Fertility preservation by cryopreservation of ovarian cortex should be part of the informed consent with the patient.

Chinese Society of Gynecological Endocrinology affiliated to the International Society of Gynecological Endocrinology Guideline for Ovarian Tissue Cryopreservation and Transplantation

In order to promote the standard application of ovarian tissue cryopreservation in China, and to provide effective scientific medical services of fertility preservation for patients, the First Chinese Guideline of Ovarian Tissue Cryopreservation and Transplantation is established according to the agreements between gynecologists, embryologists, oncologists, pediatricians, breast oncologists, hematologists, and experts on Traditional Chinese Medicine (TCM), based on already successful treated cases within Beijing Obstetrics and Gynecology Hospital, Capital Medical University, China, and based on already existing international guidelines on fertility preservation including important publications in this field. The guideline includes selection criteria, evaluation, and indications; SOPs of ovarian tissue removal, transportation, preparation, freezing, and thawing; approaches of ovarian tissue transplantation and follow-up; practical recommendations for ovarian tissue cryopreservation and transplantation including recommendations of the diseases where this method could be available, and treatment of menopausal symptoms during the peri-transplantation period (time between cryopreservation and retransplantation). The aim of this guideline was to be scientific, practical, and operable.

Management of endometriosis from diagnosis to treatment: roadmap for the future

Endometriosis, in spite of decades of research on the topic, remains a mysterious and elusive disease. Both in the fields of diagnosis and treatment, many issues remain unresolved, and the scientific community strives in trying to find universal criteria for diagnosis, and algorithms of treatment that may be universally applied. Recently, there has been a shift away from the view of the need of invasive diagnosis and therapy with the universal use of laparoscopy. Today the diagnosis of endometriosis may be reliably performed with noninvasive methods, and therapy can be nonsurgical in most cases. Recent guidelines state that diagnostic laparoscopy may be better seen as a second line of investigation, whereas medical therapy with either oral estroprogestins or progestogens is the first therapeutic option in case of associated pain. A thorough discussion with the patient should address all the available treatments, so as to make a shared decision on which treatment best fits the needs of that single patient.

EndoART: A proposed randomized controlled trial on endometriomas in assisted reproductive technologies, comparing the effect of no intervention, surgery, and prolonged GnRH downregulation on pregnancy rates

Background:

Clinical management of endometriomas, prior to starting treatment with assisted reproductive technologies (ART), has since long been a matter of debate. Whereas cystectomy has been advocated in the past, recently more evidence has emerged on the potential negative effect of surgery on ovarian reserve. Parallel to this, prolonged downregulation with GnRH-a (gonadotropin-releasing hormone agonists) has been described to improve ART pregnancy rates in women with endometriosis. However, none of these strategies have been assessed in a large randomized controlled trial. The aim of the EndoART study is to assess whether ovarian surgery or prolonged GnRH-a downregulation result in higher pregnancy rates after ART compared to no intervention in women with endometrioma(s).

Methods/design:

A parallel randomized multi-center trial has been designed to compare ART pregnancy rates in three different treatment groups: no intervention, ovarian surgery, and prolonged hormonal suppression by GnRH-a prior to ART. The primary outcome measure studied is the clinical pregnancy rate with fetal heart-beat within 6 months after initiation of a fresh ART cycle. Secondary outcome measures studied include live birth rate after one initiated fresh ART cycle, cumulative clinical pregnancy rate with fetal heart-beat and live birth rates (after one fully completed ART cycle: initiated fresh + eventual associated frozen embryo transfer cycles), ART–specific data (e.g. number of oocytes, number of good quality embryos), complications, pelvic pain, and quality of life.

Conclusion:

This trial may answer the most frequently asked questions by both women with endometriosis and physicians: how do you treat endometrioma in women prior to treatment with ART?

[Surgical management of endometrioma: Different alternatives in term of pain, fertility and recurrence. CNGOF-HAS Endometriosis Guidelines]

Surgical management of ovarian endometrioma is most often part of a global approach of endometriosis pathology. Isolated endometrioma are rare. Laparoscopic cystectomy is the gold standard for surgical management of endometrioma. Nevertheless, this technique impacts the ovarian function. The hemostasis of the ovarian cyst bed should be performed to conserve the ovarian stroma. Ultrasonography-guided cyst aspiration, laparoscopic drainage and simple bipolar coagulation are not recommended as first line of treatment. Based on the actual literature, we cannot state the place of laser-vaporization and plasma-energy ablation in surgical management. Ethanol sclerotherapy could be an alternative to treat recurrent endometrioma. Uncompleted surgical removal of endometriosis lesions increases the recurrence rate. Endometriosis management should take into account the research and treatment of all the pelvic lesion, especially before surgical management of endometrioma. In this context, the evaluation of ovarian reserve could be useful before surgery.

Ovarian reserve evaluation after laparoscopic cyst enucleation, depending on applied haemostasis technique and with particular consideration of endometrial cysts

AIM OF THE STUDY

was an evaluation of the effects, exerted by obtained haemostasis on ovarian reserve, depending on haemostasis technique, applied after laparoscopic enucleation of endometrial cysts.

MATERIAL AND METHODS

Sixty-six female patients, at the age of 20-35 years, were included into the study. The diameters of the cystic lesions were within 40-70 mm. The patients were randomly assigned to two study groups. Group 1 involved patients after laparoscopic enucleation of ovarian cysts, in whom haemostasis was achieved by ovary suturing, while Group 2 included patients with haemostasis achieved by bipolar coagulation technique. Cyst enucleation was performed in all the patients by the stripping method. Ovarian reserve markers: AFC (antral follicle count), AMH (anti-Müllerian hormone), and inhibin B were assayed before and three months after the surgery.

RESULTS

The preoperative values of AMH, AFC, and inhibin B were similar in both studied groups. After a three-month follow up, the post-operative levels of AMH and inhibin B were significantly lower (p < 0.05), while the numbers of antral follicles did not reveal any statistical differences (p > 0.05). While comparing endometrial and dermoid cysts in the sutured group of patients, the difference, regarding AMH, was statistically significant (2.13 vs. 4.69, p = 0.03). In the group of patients after bipolar coagulation, the corresponding differences did not attain statistical significance (2.21 vs. 6.51, p = 0.86).

CONCLUSIONS

Comparing pre- and post-operative levels of AMH and inhibin B, regardless of the applied haemostasis technique, a statistically significant reduction of the ovarian reserve was observed in either group. Comparing both haemostasis techniques, no method was demonstrated that would have decreased less the levels of AMH, AFC, or inhibin B.

[Management of endometrioma]

Preoperative evaluation: clinical examination, and research for associated lesions. Laparoscopic approach. Cystectomy: gold standard, conformed to the endometrioma pathophysiology (3 zones). Laser CO₂ Plasmajet^® vaporisation: important data lead to legitimate utilisation. Haemostasis: be patient! Use of bipolar energy sparingly. Look for other endometriotic lesions, and systematic treatment. Preoperative medical treatment not always useful. Postoperative treatment: decrease recurrence. Especially for patients with no immediate pregnancy desire.