Enhanced recovery after surgery (ERAS) for deep infiltrating endometriosis surgery: Experience of a French center.

OBJECTIVE: The objective of the study was to evaluate the implementation of an ERAS programme for deep pelvic endometriosis (DPE) surgery in terms of length of stay (LOS), postoperative complications (POC) and rehospitalisation rate. METHODS: This was a comparative retrospective monocentric study in the Gynaecologic Department of the La Conception Hospital in Marseille, France. We compared a 'conventional' group, with classic perioperative management corresponding to patients undergoing DPE surgery between April 8, 2014 and January 23, 2018, and an 'ERAS' group after setting up the ERAS protocol from February 6, 2018 to March 6, 2020. RESULTS: A total of 101 patients with DPE surgery were included, with 39 in the conventional group and 53 in the ERAS group. The LOS decreased by 1.91 days (p < 0.001). During the 45 postoperative days, no difference was found in rehospitalised rate (p = 1). The POC rate was 15/39 (38.5 %) in the conventional group and 12/53 (22.6 %) in the ERAS group (p = 0.1). CONCLUSION: The implementation of an ERAS programme for DPE surgery is an effective strategy because it can reduce the LOS without increasing the POC rate.

Laparoscopic Multibipolar Radiofrequency Myolysis for Symptomatic Myomas in 10 Steps.

STUDY OBJECTIVE: To describe a minimal invasive 10-step technique of laparoscopic multibipolar radiofrequency myolysis for symptomatic myomas. DESIGN: A step-by-step video demonstration of the technique. SETTING: A woman with symptomatic FIGO 5 myoma of 60 mm of diameter, confirmed by magnetic resonance imaging. The patient included in this video gave consent for publication of the video and posting of the video online including social media, the journal website, scientific literature websites (such as PubMed, ScienceDirect, Scopus, etc.) and other applicable sites. INTERVENTIONS: Approximately 30% of women of child-bearing age with myomas will present with symptoms [1] that include chronic pelvic pain, abnormal uterine bleeding or infertility [2,3]. Data regarding fertility preservation and obstetric outcomes suggest that radiofrequency myoma ablation may offer an alternative to existing treatments for women who desire future fertility [4]. The local institutional review board stated that approval was not required because the video describes a technique and not a clinical case. In our center, all radiofrequency indications are discussed during a monthly multidisciplinary myomas meeting. This video presents the procedure divided into the following 10 steps: planning of the surgery; materials; installation; laparoscopic exploration; transvaginal ultrasound examination; visual and transvaginal ultrasound guided transparietal puncture of the myoma; control of the applicators' position; radiofrequency myolysis; end of myolysis, applicators removal; final check and additional procedures. CONCLUSION: Radiofrequency myolysis is a simple and reproductible procedure that can be offered as an alternative to myomectomy [5]. This video presents 10 steps to make the procedure easier to adopt and to reduce its learning curve. VIDEO ABSTRACT.

Robot-assisted tubo-tubal reanastomosis after sterilization in 10 steps.

Five to 20% of women regret having a tubal ligation. These women are generally otherwise fertile and have a better chance of pregnancy than other patients experiencing infertility, whether by in vitro fertilization or after tubal surgery. Historically, tubal anastomosis surgery has long been performed by microsurgery through laparotomy, which provided very high precision but was associated with some degree of morbidity. The parallel development of in vitro fertilization and laparoscopy have contributed to reducing the indications for tubal surgery. The laparoscopic approach is challenging because of the number and precision of the sutures needed. The robot-assisted laparoscopic approach may reduce the surgical difficulty and improve the accessibility of this technique. We have described the technique of tubo-tubal reanastomosis after sterilization with robot-assisted laparoscopy in 10 steps. Robot-assisted laparoscopy provides favourable conditions for performing tubo-tubal reanastomosis after sterilization due to the camera stability, precision of movement, and amplitude of articulations.

Mild endometriosis of the uterosacral ligaments: a retrospective study of magnetic resonance imaging performance for diagnosis.

RESEARCH QUESTION: What are the diagnostic performances of magnetic resonance imaging (MRI) scans when used to identify mild endometriosis of the uterosacral ligaments (USL)? DESIGN: Monocentric retrospective study of patients who underwent a pelvic MRI followed by laparoscopy for determination of endometriosis between January 2016 and December 2020. Patients were included whether endometriosis of USL was suspected or not, but patients presenting large lesions that left no doubt as to their endometriotic nature on the MRI were excluded. Six criteria for the description of USL on MRI were studied to determine their diagnostic performances in predicting the presence of endometriosis on laparoscopy as follows: asymmetry, thickening, irregularity, straightness, the presence of a nodule or a hypersignal T1 spot. RESULTS: Seventy-seven patients were included. Among the criteria, 'asymmetry' and 'thickening' had the highest sensitivities (0.69 [95% confidence interval 0.54-0.80] and 0.51 [0.40-0.63], respectively) but moderate specificities (0.52 [0.31-0.73] and 0.62 [0.50-0.72]). Conversely, 'irregularity', 'nodule', 'straightness' and 'hypersignal T1 spot' were associated with high specificities (0.81 [0.70-0.89], 0.96 [0.89-0.99], 0.95 [0.87-0.99] and 0.99 [0.93-1.00], respectively) but poor sensitivities (0.22 [0.14-0.33], 0.12 [0.06-0.21], 0.08 [0.03-0.16] and 0.08 [0.03-0.16], respectively). The presence of at least one criterion for the description of the USL was associated with good sensitivity (0.80 [0.66-0.89]) but poor specificity (0.35 [0.16-0.57]). CONCLUSIONS: The results suggest that the identification of minimal changes in the normal appearance of USL should not automatically lead to a conclusion of mild endometriosis at this location.

Endometriosis and environmental factors: A critical review.

This review provides an overview of current knowledge on the relationship between various environmental factors and endometriosis. We successively searched for a given exposure factor combined with the word "endometriosis." The literature was comprehensively analyzed and summarized by quoting only the most important and recent studies on each exposition factor. The data focused primarily on endocrine disruptors, such as dioxins and polychlorinated biphenyls, that appear to have the strongest effect. Intriguing data suggest a link with night work, sun exposure and red meat consumption. For the other risk factors studied, particularly those related to lifestyle (tobacco consumption, alcohol, coffee, soy, physical exercise), the data are not sufficient to draw conclusions. In summary, the epidemiological evidence does not support a strong, scientific link between exposure to environmental factors and endometriosis. The complexity of this disease requires advanced study designs and standardized methodology. Future studies should be carefully designed to address these issues to advance our understanding of the impact of the environment and its consequences on endometriosis.

Midline rectovaginal fascial plication: Anatomical and functional outcomes at one year.

OBJECTIVES: To evaluate anatomical and functional results at one year of midline rectovaginal fascial plication (MFP) for rectocele. MATERIAL AND METHODS: Single-center observational study performed in a gynecologic-obstetrics department of a university hospital. Inclusion criteria were patients with isolated or associated rectocele treated by MFP. The success rate defined by a Bp point < 0 cm, improvement of symptoms, and satisfaction were evaluated at one year. Quality of life questionnaires were distributed pre- and postoperatively at one year. RESULTS: 34/46 (74%) patients were interviewed pre and postoperatively including a POPQ evaluation in only 30 patients. Anatomical success rate was 28/30 (93%) (p < 0.0001). There was an improvement in the sensation of vaginal bulge with 22/34 patients (65%) no longer having this symptom (p < 0.0001) and only one patient (1/34, 3%) underwent surgery for recurrence of the rectocele. 24/34 patients (71%) were satisfied with their surgery at one year. CONCLUSION: Anatomical and functional results of MFP for rectocele are encouraging and must be confirmed on a longer follow up.

Vaginal NOTES approach for risk-reducing salpingo-oophorectomy in BRCA mutation carriers: A video demonstration.

Risk-reducing bilateral salpingo-oophorectomy (BSO) is an important option to prevent the development of ovarian and fallopian tube cancers in women with a BRCA1/2 mutation. Conventional laparoscopy is the current preferred technique since it is associated with less morbidity compared to laparotomy. Transvaginal Natural Orifice Transluminal Endoscopic Surgery (vNOTES) is a new minimally invasive technique that allows access to the peritoneal cavity through the vagina without skin incisions. The vNOTES technique for risk-reducing BSO is presented herein. This article includes a narrated, step-by-step video demonstration of the entire procedure. Risk-reducing BSO using the vNOTES approach is a feasible technique that appears to be simple, safe, and reproducible. This technique has the potential to improve patients' surgical experience and provide good long-term functional and cosmetics outcomes. This technique needs to be further evaluated and compared to the conventional laparoscopic approach.

Using pneumovaginoscopy to perform the removal of a vaginal fibroid.

OBJECTIVE: To describe and assess the feasibility of a novel surgical technique (pneumovaginoscopy) for performing vaginal surgery. DESIGN: Video of a single surgical procedure. SETTING: A university hospital. PATIENT(S): A 42-year-old woman, gravida 2 para 2, presented with chronic pelvic pain. Vaginal examination revealed a 4-cm spherical mass bulging through her posterior vaginal wall. Magnetic resonance imaging identified this mass as either a subserosal pedunculated uterine fibroid (type 7 according to the FIGO classification) or an ectopic fibroid of the posterior vaginal wall (type 8). INTERVENTION(S): The whole procedure was performed using pneumovaginoscopy. The GelPOINT V-Path (Applied Medical, Rancho Santa Margarita, California) which is the device most often used to perform transvaginal natural orifice transluminal endoscopic surgical procedures, was introduced into the vagina to create a pneumovagina. Monopolar scissors were used to create an incision through the posterior vaginal wall to reach the fibroid. Myomectomy was performed using traction movements of the fibroid associated with the dissection of the capsule. The absence of a uterine pedicle at the end of the myomectomy was in favor of an ectopic fibroid of the vagina (type 8 of the FIGO classification). The vaginal defect was closed with interrupted sutures using the access points on the GelPOINT. MAIN OUTCOME MEASURE(S): The procedure was easily and efficiently performed using the pneumovaginoscopy technique and lasted less than an hour. The patient was discharged on postoperative day 1 without any postoperative complications. She was symptom-free at her 2-month postoperative visit. RESULT(S): Compared to the classical vaginal approach, pneumovaginoscopy improves visualization through targeted lighting and close-up vision. This technique is particularly interesting in cases where the vaginal opening is narrow and for lesions located in the upper half of the vagina. Because of the unusual expansion of the vagina, increased caution is required to avoid bladder or rectal injuries. CONCLUSION(S): Pneumovaginoscopy is a novel technique that can be performed for vaginal pathologies with the same device used for transvaginal natural orifice transluminal endoscopic surgery. We described this technique and assessed its feasibility.

Nicotine Replacement Therapy during Pregnancy and Child Health Outcomes: A Systematic Review.

Tobacco smoking in pregnancy is a worldwide public health problem. A majority of pregnant smokers need assistance to stop smoking. Most scientific societies recommend nicotine replacement therapy (NRT) during pregnancy but this recommendation remains controversial because of the known fetal toxicity of nicotine. The objective of this systematic review was to provide an overview of human studies about child health outcomes associated with NRT use during pregnancy. The electronic databases MEDLINE, the Cochrane Database, Web of Science, and ClinicalTrials.gov were searched from the inception of each database until 26 December 2020. A total of 103 articles were identified through database searching using combination of keywords. Out of 75 screened articles and after removal of duplicates, ten full-text articles were assessed for eligibility and five were included in the qualitative synthesis. NRT prescription seems to be associated with higher risk of infantile colic at 6 months as in case of smoking during pregnancy, and with risk of attention-deficit/hyperactivity disorder. No association between NRT during pregnancy and other infant health disorders or major congenital anomalies has been reported. Well-designed controlled clinical trials with sufficient follows-up are needed to provide more information on the use of NRT or other pharmacotherapies for smoking cessation during pregnancy on post-natal child health outcomes.

Surgical management of endometriotic women with pregnancy intention in France: A national snapshot of centers performing a high volume of endometriosis procedures.

OBJECTIVE: To provide a snapshot of the surgical management of endometriosis in French high-volume activity centers. METHODS: Analysis of prospectively collected data between November 2015 and May 2017 in 21 centers with a high volume of endometriosis surgery in France. Each facility could include up to 40 patients undergoing laparoscopy for endometriosis. Data were collected before and two months after surgery. RESULTS: 361 patients were enrolled in the study. Twenty-seven patients (7.48%) were lost to follow-up at the month 2 visit. Endometriosis stage was I-II in 33.70% of patients and III-IV in 66.30%. Uterosacral ligament resection was the most frequently performed procedure (50.97%) followed by rectal surgery (31.58%), ovarian procedures for endometrioma, procedures for ureters (21.33%) and the bladder (11.91%). Antiadhesion agents were employed in 215/361 (59.56%) patients. The median length of hospital stay after surgery was 2 (IQR 1 - 4) days. Post-operative complications were recorded in 9.34% of patients. Rectovaginal fistulae occurred in 8 patients (2.41%), pelvic abscess in 4 (1.20%) and bladder atony in 3 (0.90%). 17 patients (5.14%) required a second surgical procedure after a median time of 31 days (IQR 9 - 81). Two months after surgery, 95.09% of patients reported being satisfied or very satisfied with the surgery. CONCLUSION: Our study shows that surgical management of endometriosis in centers with a high volume of endometriosis surgery, mainly concerns women presenting with severe disease and deep localizations, with an overall risk of major complications inferior to 10% and a high rate of patient satisfaction.

Performance Assessment for Total Laparoscopic Hysterectomy in the Operating Room: Validity Evidence of a Procedure-specific Rating Scale.

STUDY OBJECTIVE: The technical conduct of total laparoscopic hysterectomy (LH) is critical to surgical outcomes. This study explored the validity evidence of an objective scale specific to the assessment of technical skills (H-OSATS) for 7 tasks of an LH with salpingo-oophorectomy procedure performed in the operating room. DESIGN: Observational cohort study. SETTING: Two academic hospitals in Marseille and Montpellier, France. PATIENTS: Three groups of operators (novice, intermediate, and experienced surgeons) were video recorded during their live performances of LH on a simple case. For each group, a dozen unedited videos were obtained for the following tasks: division of the round ligament, division of the infundibulopelvic ligament, creation of the bladder flap, opening of the posterior peritoneum, division of the uterine vessels, colpotomy, and closure of the vault. INTERVENTIONS: Two qualified raters blindly assessed each video using the H-OSATS rating scale. Inter-rater reliability and test-retest reliability were calculated as measures of internal structure. In a separate round of evaluations, the raters provided a global competent/noncompetent decision for each performance. As a measure of consequential validity, a pass/fail score was set for each task using the contrasting group method. MEASUREMENTS AND MAIN RESULTS: Three tasks (creation of the bladder flap, colpotomy, and closure of the vault) displayed sound validity evidence: a meaningful total score difference among the 3 groups of experience as well as between the intermediate and experienced surgeons, reliability outcomes of >0.7, and a pass/fail score with a theoretical false-positive rate of <10%. CONCLUSION: The validity evidence of the H-OSATS rating scale differed for separate evaluations of the 7 tasks. Three tasks (i.e., creation of the bladder flap, colpotomy, and closure of the vault) revealed sound validity evidence, including at the level of the attending surgeon, whereas other tasks were more consistent with low-stakes formative evaluation standards.

Transvaginal ethanol sclerotherapy for an endometrioma in 10 steps.

OBJECTIVE: To describe a minimally invasive 10-step technique of ethanol sclerotherapy for the treatment of an endometrioma. DESIGN: Step-by-step video demonstration of the technique. SETTING: University tertiary care hospital. PATIENT(S): Women with endometriomas defined as persistent endometriotic ovarian cysts between 25 and 100 mm of diameter, confirmed by magnetic resonance imaging. INTERVENTION(S): Endometriomas occur in 17%-44% of patients with endometriosis, who generally complain about pelvic pain or infertility. This technique may be offered to patients with endometriomas to preserve fertility. The local institutional review board stated that approval was not required because the video describes a technique and not a clinical case. In our center, all severe endometriosis cases are discussed during a multidisciplinary endometriosis meeting. MAIN OUTCOME MEASURE(S): This video presents the procedure divided into the following 10 steps: planning of the surgery; materials; ultrasound examination; transvaginal puncture of the endometrioma; aspiration of the cyst; cytology of the cyst; flushing the cyst with saline solution; injection of 96% ethanol; 10 minutes' exposure to ethanol; and aspiration of ethanol. RESULT(S): We presented 10 steps to make the procedure easier to adopt and to reduce the learning curve. This technique may be offered as an alternative to cystectomy. CONCLUSION(S): Ethanol sclerotherapy for endometriomas is a rapid outpatient procedure, requiring little equipment for a low cost.

Video-based self-assessment enhances laparoscopic skills on a virtual reality simulator: a randomized controlled trial.

BACKGROUND: Hysterectomy rates are decreasing in many countries, and virtual reality (VR) simulators bring new training opportunities for residents. As coaching interventions while training on a simulated complex procedure represents a resource challenge, alternative strategies to improve surgical skills must be investigated. We sought to determine whether self-guided learning using a video-based self-assessment (SA) leads to improved surgical skills in laparoscopic hysterectomy (LH) on a VR simulator. METHODS: Twenty-four gynecology residents from two university hospitals were randomized into an SA group (n = 12) and a Control group (n = 12). Each participant's baseline performance on a validated VR basic task was assessed. Both groups then performed three virtually simulated LHs during which the participants received no guidance nor feedback. Following each LH, the SA group participants rated the video of their own performance using a generic and a procedure-specific rating scale, while the Control group participants watched an LH video demonstration. The LH videos of both groups' participants were blindly reviewed and rated by expert surgeons, using modified Objective Structured Assessment of Technical Skills scores (OSATS). Objective metrics recorded by the VR simulator were also compared. RESULTS: There was no difference between the groups' baseline performances on the VR basic task. For the first LH, the OSATS-derived scores did not differ between SA and Control groups (9 [7-13] versus 9 [8-14]; p = 0.728). For the third LH, the OSATS-derived scores were higher for the SA group than for the Control group (17 [15-21] versus 15 [11-17], p = 0.039). Between the two groups, the objective metrics did not differ from the first to the third LH. CONCLUSIONS: The use of a structured video-based SA leads to improved procedural skills in LH on a VR simulator compared to watching benchmark expert performance, in a population of residents with moderate experience in the operating room.

Progression of adenomyosis magnetic resonance imaging features under ulipristal acetate for symptomatic fibroids.

RESEARCH QUESTION: What is the evolution of adenomyosis on magnetic resonance imaging (MRI) after a 3-month treatment course of daily 5 mg doses of ulipristal acetate (UPA) for symptomatic fibroids? DESIGN: A monocentric prospective pilot study on patients who underwent a 3-month treatment course of UPA for symptomatic fibroids between January 2014 and December 2017. Patients underwent pelvic MRI shortly before (pre-MRI) and after treatment (post-MRI). The diagnosis of adenomyosis on MRI was defined by the observation of intramyometrial cysts and/or haemorrhagic foci within these cystic cavities and/or a thickening of the junctional zone >12 mm. The progression of adenomyosis was defined by the presence of at least one of the aforementioned criteria of adenomyosis on the pre-MRI and by at least one of the following on the post-MRI: (i) increased thickness of the junctional zone ≥20% and/or (ii) increased number of intramyometrial cysts. The appearance of adenomyosis was defined by the absence of the aforementioned criteria of adenomyosis on the pre-MRI and the presence of at least one of these criteria on the post-MRI. RESULTS: Seventy-two patients were included. The MRI features of adenomyosis progressed for 12 of 15 patients (80.0%) for whom adenomyosis was identified on the pre-MRI. An appearance of adenomyosis was identified after treatment for 15 of 57 patients (26.3%) for whom adenomyosis was not identified on the pre-MRI. CONCLUSIONS: A 3-month treatment course of daily 5 mg doses of UPA could provoke a short-term progression or an emergence of typical adenomyosis intramyometrial cysts on MRI examinations.

Choosing the most appropriate minimally invasive approach to treat gynecologic cancers in the context of an enhanced recovery program: Insights from a comprehensive cancer center.

OBJECTIVE: The aim of the study was to compare the characteristics of procedures for gynecologic cancers conducted with conventional laparoscopy (CL) or robotically assisted laparoscopy (RAL) in the context of an enhanced recovery program (ERP). METHODS: This is a secondary analysis of prospectively collected data from a cohort study conducted between 2016 (when the ERP was first implemented at the Institut Paoli-Calmettes, a comprehensive cancer center in France) and 2018. We included patients who had undergone minimally invasive surgery for gynecological cancers and followed our ERP. The endpoints were the analysis of postoperative complications, the length of postoperative hospitalization (LPO), and the proportion of combined procedures depending on the approach (RAL or CL). Combined procedures were defined by the association of at least two of the following operative items: hysterectomy, pelvic lymphadenectomy, and para-aortic lymphadenectomy. RESULTS: A total of 362 women underwent either CL (n = 187) or RAL (n = 175) for gynecologic cancers and followed our ERP. The proportion of combined procedures performed by RAL was significantly higher (85/175 [48.6%]) than that performed by CL (23/187 [12.3%]; p < 0.001). The proportions of postoperative complications were similar between the two groups (19.4% versus 17.1%; p = 0.59). Logistic regression analysis revealed a statistically insignificant trend in the association of RAL with a reduced likelihood of an LPO > 3 days after adjusting for predictors of prolonged hospitalization (adjusted OR = 0.573 [0.236-1.388]; p = 0.217). CONCLUSION: Experts from our cancer center preferentially choose RAL to perform gynecologic oncological procedures that present elements of complexity. More studies are needed to determine whether this strategy is efficient in managing complex procedures in the framework of an ERP.

Learning Intracorporeal Suture on Pelvitrainer Using a Robotized Versus Conventional Needle Holder.

BACKGROUND: Laparoscopy is the gold standard approach in numerous surgical procedures. A new generation of robotized instruments has been developed to compensate for the ergonomic constraints of conventional instruments. The main objective was to compare the learning curves of novices for intracorporeal suturing on a laparoscopy pelvitrainer, using either a robotized needle holder or conventional needle holders. The post-training performances under ergonomically difficult conditions were also analyzed. MATERIALS AND METHODS: Fifth-year medical students were randomized in group A using a robotized needle holder (JAIMY; Endocontrol, Grenoble, France) and group B using straight conventional needle holders. They undertook four training sessions (intracorporeal knot-tying task) followed by an evaluation session (intracorporeal knots-tying task, frontal suture, and hexagonal suture). RESULTS: Twenty participants were included. The performances of the two groups (n = 10) were not significantly different at baseline. During the training sessions, there was a learning curve with a plateau at the third session for both the groups. At the final evaluation session, there was no significant difference between group A and group B for the intracorporeal knot-tying task (median fundamentals of laparoscopic surgery score: 468 versus 474.5 respectively; P = 0.762). There was a significant difference between group A and group B for the frontal suture (median global score: 15.75 versus 3.75 respectively; P = 0.005) but not for the hexagonal suture (median global score: 18 versus 15 respectively; P = 0.284). CONCLUSIONS: Learning curves were equally fast using the robotized needle holder versus conventional instruments and led to equivalent performances. Under ergonomically difficult conditions, the robotized needle holder provided an advantage relative to conventional instruments.

Progression of deep infiltrating rectosigmoid endometriotic nodules.

STUDY QUESTION: What is the risk of progression of deep endometriotic nodules infiltrating the rectosigmoid? SUMMARY ANSWER: There is a risk of progression of deep endometriotic nodules infiltrating the rectosigmoid, particularly in menstruating women. WHAT IS KNOWN ALREADY: Currently, there is a lack of acceptance in the literature on the probability that deeply infiltrating rectosigmoid endometriotic nodules progress in size. STUDY DESIGN, SIZE, DURATION: We conducted a monocentric case-control study between September 2016 and March 2018 at Rouen University Hospital. We enrolled 43 patients who were referred to our tertiary referral centre with deep endometriosis infiltrating the rectosigmoid, who had undergone two MRI examinations at least 12 months apart and had not undergone surgical treatment of rectosigmoid endometriosis during this interval. PARTICIPANTS/MATERIALS, SETTING, METHODS: MRI images were reinterpreted by a senior radiologist with experience and expertise in endometriosis, who measured the length and thickness of deep infiltrating colorectal lesions. Intra- and inter-observer reliability were tested on 30 randomly selected cases. We defined 'progression' of a nodule as an increase of ≥20% in length or in thickness and 'regression' of a lesion as a decrease of ≥20% in length or in thickness between two MRIs. Any nodule for which the variation in length and thickness was <20% was considered as 'stable'. Patients were divided into three groups based on evidence of progression, regression or stability of deep endometriotic nodules between their two MRI examinations. The total length of any period of amenorrhoea between the two MRI examinations, due to pregnancy, breastfeeding or hormonal treatment, was recorded. The total proportion of the time between MRIs where amenorrhoea occurred was compared between groups. MAIN RESULTS AND THE ROLE OF CHANCE: Eighty-six patients underwent at least two MRIs for deep endometriosis infiltrating the sigmoid or rectum between September 2016 and March 2018. Of these, we excluded 10 patients with an interval of <12 months between MRIs, 10 patients who underwent surgery between MRIs, 17 patients for whom at least 1 MRI was considered to be of poor quality and 6 patients for whom no deep colorectal lesion was found on repeat review of either MRI. This resulted in a total of 43 patients eligible for enrolment in the final analysis. Mean time (SD) between MRIs was 38.3 (22.1) months. About 60.5% of patients demonstrated stability of their colorectal lesions between the two MRIs, 27.9% of patients met the criteria for 'progression' of lesions and 11.6% met the criteria for 'regression' of lesions. There was no significant difference in time interval between MRIs for the three groups (P = 0.76). Median duration of amenorrhoea was significantly lower in women with progression of lesions (7.5 months) when compared to those with stability of lesions (8.5 months) or regression of lesions (21 months) (P < 0.001). Median duration of amenorrhoea (expressed as percentage of total time between two MRIs) was also found to be significantly lower in the group demonstrating progression (15.1%) when compared to the group demonstrating stability (19.2%) and the group demonstrating regression (94.1%; P = 0.006). Progression of rectosigmoid nodules was observed in 34% of patients without continuous amenorrhoea, in 39% who had never had amenorrhoea and in no patients with continuous amenorrhoea. LIMITATIONS, REASONS FOR CAUTION: Due to a lack of universally accepted criteria for defining the progression or regression of deep endometriotic nodules on MRI, the values used in our study may be disputed. Due to the retrospective design of the study, there may be heterogeneity of interval between MRIs, MRI techniques used, reason for amenorrhoea and duration of amenorrhoea. The mean inter-MRI interval was of short duration and varied between patients. Our findings are reported for only deep endometriosis infiltrating the rectosigmoid and cannot be extrapolated, without caution, to nodules of other locations. WIDER IMPLICATIONS OF THE FINDINGS: Patients with deeply infiltrating rectosigmoid endometriotic nodules, for which surgical management has not been performed, should undergo surveillance to allow detection of growth of nodules, particularly when continuous amenorrhoea has not been achieved. This recommendation is of importance to young patients with rectosigmoid nodules who wish to conceive, in whom first line ART is planned. There is a very low risk of progression of deep endometriotic nodules infiltrating the rectosigmoid in women with amenorrhoea induced by medical therapy, lactation or pregnancy. STUDY FUNDING/COMPETING INTEREST(S): No funding was received for this study. The authors declare no competing interests related to this study.

Predictors of uterine fibroid volume reduction under ulipristal acetate: a prospective MRI study.

RESEARCH QUESTION: Can patient and/or uterine fibroid characteristics predict the volume reduction of fibroids under ulipristal acetate (UPA) treatment? DESIGN: This was a monocentric observational prospective cohort study of women with symptomatic fibroids who were willing to undergo surgery after a 3-month treatment of daily 5 mg doses of UPA. Patients underwent magnetic resonance imaging before and after treatment, and the volumes of the three largest fibroids were assessed. The reduction in volume was assessed qualitatively: fibroids decreasing in volume were considered to be 'responsive' to treatment, and fibroids that were stable or increased in volume were considered to be 'non-responsive'. Comparisons were made of patient (age and body mass index) and fibroid (initial volume, number and location) characteristics between fibroids that were responsive and non-responsive to UPA treatment. RESULTS: Fifty-three women were included in the final analysis and 116 fibroids were measured. The initial number and initial volume of the fibroids were statistically associated with the response to UPA treatment (adjusted odds ratio [OR] 0.645, 95% confidence interval [CI] 0.461-0.903, P = 0.0115 for number of fibroids, and adjusted OR 1.447, 95% CI 1.063-1.970, P = 0.0195 for initial volume, with a log-linear relationship). Submucosal fibroids had a higher response rate to treatment (i.e. a decrease in volume) than intramural fibroids (21/25 [84.0%] versus 15/28 [53.6%]; P = 0.0490; adjusted OR 4.478, 95% CI 1.007-19.918). CONCLUSIONS: The location, initial volume and number of fibroids may allow prediction of the outcome of a single 3-month treatment course of daily 5 mg doses of UPA in terms of reduction in volume before surgery.

Do early luteal serum progesterone levels predict the reproductive outcomes in IVF with oral dydrogesterone for luteal phase support?

OBJECTIVE: We sought to determine whether the early luteal serum progesterone (P4) level predicts the success of IVF treatment with oral dydrogesterone for luteal support. METHOD: This retrospective monocentric cohort study included 242 women who underwent IVF treatment with fresh embryo transfer (ET) between July 2017 and June 2018. The population was unselected, and women were treated according to our unit's usual stimulation protocols. For the luteal phase support (LPS), all women were supplemented with a 10 mg three-times-daily dose of oral dydrogesterone beginning on the day of oocyte pick-up (OPU). Blood sampling was performed on the day of ET (Day 2-3 after OPU) to determine the early luteal serum progesterone level. RESULTS: ROC curve analysis allowed us to determine two thresholds for the prediction of live birth using the early P4 level. Women who had early luteal P4 levels greater than 252 nmol/l had a significantly higher live birth rate (27.1%) than women with early luteal P4 between 115 and 252 nmol/l (17.2%) and women with early luteal P4 below 115 nmol/l (6.0%; p = 0.011). After a multiple regression analysis, an early luteal P4 level greater than 252 nmol/l was still associated with a higher chance of a live birth than a P4 between 115 and 252 nmol/l (OR = 0.40 [0.18-0.91]; p = 0.028) or a P4 below 115 nmol/l (OR = 0.10 [0.01-0.52]; p = 0.006). CONCLUSIONS: Our study suggests a positive association between early P4 levels and reproductive outcomes in IVF using oral dydrogesterone for luteal support. The inconsistencies between our results and those of other studies suggest that extrapolation is impractical. Further larger prospective cohort studies should be conducted to determine reliable thresholds that could be used to personalize luteal phase support.