Evaluation of urinary dysfunction by urodynamic tests, electromyography and quality of life questionnaire before and after surgery for deep infiltrating endometriosis

A Systematic Review of the Prevalence of Overactive Bladder in Women with Non-Urinary Tract Endometriosis and the Effect of Endometriosis Surgery on Symptoms of Overactive Bladder

INTRODUCTION AND HYPOTHESIS

Overactive bladder (OAB) is characterised by urinary urgency, with or without incontinence, often accompanied by daytime frequency and nocturia, in the absence of urinary tract infection or other identifiable causes. Population studies estimate the prevalence of OAB at 12.8% (EPIC study), increasing with age, reaching up to 43% after age 40. Endometriosis affects about 10% of women of reproductive age. Both OAB and endometriosis are chronic and negatively impact women's quality of life. They appear to share a common pathophysiology related to central sensitisation. We hypothesised that OAB and endometriosis might co-exist, and surgical excision of endometriosis could alleviate OAB symptoms. We aimed to assess the prevalence of OAB in patients with endometriosis and examine the effect of endometriosis surgery on OAB symptoms.

METHODS

A systematic search of MEDLINE, PubMed, Embase, and CINAHL-Plus identified studies reporting on endometriosis and OAB or overlapping conditions such as interstitial cystitis. Studies on bladder or ureteric endometriosis were excluded.

RESULTS

Six studies (772 participants) were included. The prevalence of OAB in endometriosis patients ranged from 9.4% (Brazil) to 32% (France). OAB diagnosis varied, with tools such as International Consultation of Incontinence Modular Questionnaire on Female Lower Urinary Tract Symptoms, Core Lower Urinary Tract Symptom Score, Bristol Female Lower Urinary Tract Symptoms, and urodynamics. Surgical outcomes were inconsistent, with no improvement in three studies, equivocal in one, and worsened in another.

CONCLUSION

Overactive bladder and non-urinary tract endometriosis may co-occur in 20.5% of patients, with surgery showing variable effects on OAB symptoms. Further standardised global research is warranted to fill in evidence gaps such as whether pre-operative desensitisation could improve surgical and quality-of-life outcomes.

Lower Urinary Tract Dysfunction Among Patients Undergoing Surgery for Deep Infiltrating Endometriosis: A Prospective Cohort Study

Background/Objectives: Postsurgical lower urinary tract dysfunction (LUTD) is a common problem following deep infiltrating endometriosis (DIE) resection. The condition may be caused either by surgically induced damage to the bladder innervation or by pre-existing endometriosis-associated nerve damage. The aim of this study is to evaluate the efficacy of preoperative and postoperative multichannel urodynamic testing (UD) in identifying pre-existing or surgically induced LUTD among patients with DIE. Methods: Women with suspected DIE and planned surgical resection of DIE at the Department of Obstetrics and Gynecology at the University Hospital of Bern from September 2015 to October 2022 were invited to participate in this prospective cohort study. UD was performed before and 6 weeks after surgery. The primary outcome was the maximum flow rate (uroflow), an indicator of LUTD. Secondary outcomes were further urodynamic observations of cystometry and pressure flow studies, lower urinary tract symptoms (LUTS) as assessed by the International Prostate Symptom Score (IPSS), and pain as assessed by the visual analog scale (VAS). Results: A total of 51 patients requiring surgery for DIE were enrolled in this study. All patients underwent surgical excision of the DIE. The cohort demonstrated a uroflow of 22.1 mL/s prior to surgery, which decreased postoperatively to 21.5 mL/s (p = 0.56, 95%CI -1.5-2.71). The mean bladder contractility index (BCI) exhibited a notable decline from 130.4 preoperatively to 116.6 postoperatively (p = 0.046, 95%CI 0.23-27.27). Significant improvements were observed in the prevalence of dysmenorrhea, abdominal pain, dyspareunia, and dyschezia following surgical intervention (p = <0.001). The IPSS score was within the lower moderate range both pre- and postoperatively (mean 8.37 vs. 8.51, p = 0.893, 95%CI -2.35-2.05). Subgroup analysis identified previous endometriosis surgery as a significant preoperative risk factor for elevated post-void residual (43.6 mL, p = 0.026, 95%CI 13.89-73.37). The postoperative post-void residual increased among participants with DIE on the rectum to 54.39 mL (p = 0.078, 95%CI 24.06-84.71). Participants who underwent hysterectomy exhibited a significantly decreased uroflow (16.4 mL/s, p = 0.014, 95%CI 12-20) and BCI (75.1, p = 0.036, 95%CI 34.9-115.38). Conclusions: Nerve-respecting laparoscopy for DIE may alter bladder function. UD is not advisable before surgery, but the measurement may detect patients with LUTD.

Design and methodology of the 'endometriosis and pelvic floor dysfunction' (EndoPFD) multicenter cross-sectional study

OBJECTIVE

To assess the prevalence and the characteristics of pelvic floor dysfunction (PFD) in women with endometriosis.

METHODS

This is a methodological paper that describes the 'Endometriosis and Pelvic Floor Dysfunction' (EndoPFD) multicenter study protocol. It involves three sites: the University Hospital of Pisa, the San Raffaele Hospital of Milan and the Vanvitelli University Hospital of Naples. Women are recruited through web links and are asked whether they want to participate to the clinical evaluation or only to the web survey. The web survey gathers personal history, endometriosis history and symptoms, and performs a subjective evaluation of PFD through questionnaires: Urinary Distress Inventory 6, Colorectal-Anal Distress Inventory 8, Wexner Scale for Fecal Incontinence, Wexner Constipation Scoring System, and Female Sexual Function Index. Those interested in the clinical evaluation will add to the questionnaires the following exams: gynecological and proctological exam, pelvic ultrasound, urodynamic test, and anorectal manometry.

PRELIMINARY RESULTS

Recruitment for the web survey was completed. A total of 1,149 women signed the electronic consent, 329 were excluded due to inclusion/exclusion criteria; hence, 525 completed all the questionnaires (response rate of 64.02%). Recruitment for the clinical evaluation is ongoing.

DISCUSSION

This study protocol offers the possibility to define the prevalence of PFD in endometriosis patients with a subjective and an objective assessment of signs and symptoms. This may pave the way for changing the approach to patients with endometriosis. Moreover, it demonstrates the validity of the method used (online survey and recruitment) to reach a high number of patients.

Urodynamic Profile and Impact of Surgery in Women Affected by Deep Infiltrating Endometriosis: A Systematic Review and Meta-Analysis

OBJECTIVE

To evaluate the impact of deep infiltrating endometriosis (DIE) on bladder function and the possible impact of surgical resection.

DATA SOURCES

A systematic literature research was performed using the PubMed/MEDLINE and EMBASE database (last search date: April 30, 2024).

METHODS OF STUDY SELECTION

We included studies that evaluated the urodynamics (UDS) findings in women affected by DIE before submission to surgery. Following epidemiological designs were considered suitable: randomized control trials, observational prospective or retrospective studies, and case series. Metanalysis was performed using Jamovi Software version 2.3.28 (Sydney, Australia), according to PRISMA 2020 guidelines. Nine publications were included.

TABULATION, INTEGRATION, AND RESULTS

Nine studies, including 574 women affected by DIE and submitted to urodynamic assessment, were included. In women affected by DIE, preoperative detrusor overactivity (DO) was reported in 15% (95% confidence interval [CI] 3, 26; I2 = 93.9%, p <.001), preoperative voiding dysfunction in 21% (95% CI 12, 29; I2 = 78.1%, p <.001) and preoperative low maximum cystometry capacity was shown in 18% (95% CI -2, 38; I2 = 97.2%, p <.001). An abnormal bladder sensation was recorded in 39% of patients (95% CI 18, 60; I2 = 86%, p <.001), low preoperative bladder compliance was reported in 35% of patients (95% CI 30, 40; I2 = 0%, p = .66) and preoperative painful bladder filling was showed in 37% of the evaluated population (95% CI 27, 48; I2 = 0%, p = .58). No difference between preoperative and postoperative UDS detrusor overactivity was reported (odds ratio [OR] 0.45; 95% CI -0.10, 1.0, I2 = 0%; p = .66). Moreover, no difference in preoperative and postoperative voiding dysfunction was reported (OR 0.0; 95% CI -0.76, 0.76, I2 = 49.6%; p = .12).

CONCLUSION

Abnormal urodynamic findings before surgery are prevalent in women with DIE. Surgery seems not to affect UDS outcomes in women affected by DIE. However, heterogeneity among included studies may limit the generalizability of our findings.

The clinical effect of dienogest on urinary and sexual symptoms in endometriosis patients

BACKGROUND

To evaluate the effect of dienogest on urinary symptoms and sexual functioning within a 6-month follow-up period.

METHODS

We recruited 22 women with symptoms with dysmenorrhea, deep dyspareunia, and dyschezia accompanied with irritative urinary symptoms including frequency and urgency at Kaohsiung Medical University Chung-Ho Memorial Hospital from 2017 Jan 1 to 2019 Jan 1. The diagnosis of endometriosis mainly focused on vaginal examination and transvaginal ultrasound was performed in each patient. The participating patients took a daily dose of 2 mg Dienogest and underwent outpatient visits at the beginning, 1, 2, 3, and 6 months following treatment.

RESULTS

Our data showed a significant improvement in the visual Analog Scale (VAS) score from the first month till the sixth month after DNG treatment. The Overactive Bladder Symptom Score (OABSS), Urogenital Distress Inventory (UDI-6), and Incontinence Impact Questionnaire (IIQ-7) were significantly improved after the DNG treatment. Besides, serum estradiol was also decreased. Our data also showed that DNG treatment for 6 months did not affect Female Sexual Function Index (FSFI) score. Some patients with heavy menstruation also improved; however, some patients with regular periods missed or skipped a period after DNG treatment, while other adverse effects were also observed.

CONCLUSION

Our study demonstrated that DNG could not only alleviate endometriosis pelvic pain but reduce urinary symptoms within the 6-month follow-up as well. DNG did not affect sexual function as measured by the FSFI score, although some adverse effects were recorded.

Bladder Endometriosis: What do we know and what is left to find out? A narrative review

Bladder endometriosis accounts for 70-85% of urinary tract endometriosis cases. Urinary tract endometriosis occurs in approximately 1% of those living with endometriosis. Underlying aetiology and pathogenesis are not fully understood, but there are several plausible theories. As well as the typical pain symptoms, those with bladder endometriosis can experience several urinary tract symptoms. The manifestation of these symptoms can have complex pathways and processes. Imaging is accurate in the diagnosis of bladder endometriosis and clinicians should be mindful of the risk of silent kidney loss. Management should be guided by symptoms; both medical and surgical options are feasible. Surgical management offers potentially definitive treatment. Excisional surgery via bladder shave or partial cystectomy offers good improvement in symptoms with relatively low rates of serious complications and recurrence.

Nerve-sparing surgery in deep endometriosis: Has its time come?

Nerve-sparing (NS) surgery was first introduced for the treatment of deep endometriosis (DE) 20 years ago, drawing on established neuroanatomy and success from oncological applications. It aims to identify and preserve autonomic nerve fibres, reduce iatrogenic nerve injury, and minimize postoperative visceral dysfunction, without compromising the therapeutic effectiveness against endometriosis. The evolution of NS surgical techniques over the past two decades has been supported by an expanding body of literature on anatomical details, dissection techniques, and functional outcomes. Recent evidence suggests that NS surgery results in reduced postoperative voiding dysfunction (POVD). Transient POVD may be influenced by preoperative dysfunction, with parametrial infiltration being a strong predictive factor for POVD. While the benefits in bowel and sexual functions are less pronounced and consistent, NS surgery potentially prevents de novo dysfunctions in these areas. Furthermore, perioperative complication rates, effectiveness in pain relief, and fertility outcomes are reportedly on par with conventional surgery.

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

STUDY QUESTION

Is increasing the intensity of high-intensity focused ultrasound (HIFU) by 30% in the treatment of rectal endometriosis a safe procedure?

SUMMARY ANSWER

This study demonstrates the safety of a 30% increase in the intensity of HIFU in the treatment of rectal endometriosis, with no Clavien-Dindo Grade III complications overall, and namely no rectovaginal fistulae.

WHAT IS KNOWN ALREADY

A feasibility study including 20 patients with rectal endometriosis demonstrated, with no severe complications, a significant improvement in digestive disorders, dysmenorrhoea, dyspareunia, and health status, although the volume of the endometriosis nodule did not appear to be reduced.

STUDY DESIGN, SIZE, DURATION

A prospective multicentre cohort study was conducted between 2020 and 2022 with 60 patients with symptomatic rectal endometriosis. Following the failure of medical treatment, HIFU treatment was offered as an alternative to surgery.

PARTICIPANTS/MATERIALS, SETTING, METHODS

As the main objective of this study was to examine safety, all adverse events observed during the 6 months of follow-up were analysed and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) and Clavien-Dindo classifications. Secondary objectives included evaluating the evolution of symptoms using validated questionnaires: gynaecological and digestive pain symptoms with a visual analogue scale, health status with the Medical Outcomes Study 36-item Short Form (SF-36) questionnaire, average post-operative daily pain level, and analgesic medication required in the 10 days following treatment. MRI was also performed at Day 1 to detect early complications. Finally, we performed a blinded MRI review of the evolution of the nodule at 6 months post-treatment.

MAIN RESULTS AND THE ROLE OF CHANCE

The procedure was performed under spinal anaesthesia for 30% of the patients. The median duration of treatment was 32 min. Fifty-five patients left the hospital on Day 1. MRI scans performed on Day 1 did not highlight any early-onset post-operative complication. Using the Clavien-Dindo classification, we listed 56.7% Grade I events, 3.4% Grade II events, and no events Grade III or higher. At 1, 3, and 6 months, all gynaecologic, digestive and general symptoms, as well as health status, had significantly improved. The evolution of the nodule was also significant (P < 0.001) with a 28% decrease in volume.

LIMITATIONS, REASONS FOR CAUTION

The main objective was safety and not effectiveness. The study was not randomized and there was no control group.

WIDER IMPLICATIONS OF THE FINDINGS

HIFU treatment for rectal endometriosis results in an improvement of symptoms with low morbidity; as such, for selected patients, it could be a valuable alternative to surgical approaches following the failure of medical treatment.

STUDY FUNDING/COMPETING INTEREST(S)

The study was funded by the company EDAP TMS. Professors Dubernard and Rousset are consultants for EDAP TMS. Dubernard received travel support from EDAP-TMS. Dr F. Chavrier received industrial grants from EDAP-TMS. He has developed a device for generating focused ultrasonic waves with reduced treatment time. This device has been patented by EDAP-TMS. Dr Lafon received industrial grants from EDAP-TMS; he declares that EDAP-TMS provided funding directly to INSERM to support a young researcher chair in therapeutic ultrasound, which is unrelated to the current study.

TRIAL REGISTRATION NUMBER

ClinicalTrials.gov identifier NCT04494568.

Surgical treatment of deep endometriosis: Impact on spontaneous conception

Deep endometriosis (DE) is the most severe form of endometriosis and is commonly associated with infertility. Surgical treatment of DE appears to increase chances of spontaneous conception in appropriately selected patients wishing to conceive. Identifying, however, the exact impact of DE, and its surgical removal, on natural conception is highly challenging. The surgical approach should be favoured in symptomatic patients with pregnancy intention. Limited data from infertile patients suggest that outcomes may not differ from patients without known infertility. Complex DE surgery carries a risk of serious complications, therefore, it should be performed in centers of expertise. Such complications may, however, not have a significant negative impact on fertility outcomes, according to limited available data. Data on obstetric outcomes of spontaneous conceptions after DE surgery are too scarce. In asymptomatic, infertile patients the debate between primary surgery or Artifial Reproductive Technology is ongoing, until randomized studies report their results.

Effects of Pelvic Floor Muscle Physiotherapy on Urinary, Bowel, and Sexual Functions in Women with Deep Infiltrating Endometriosis: A Randomized Controlled Trial

Background and Objectives: Endometriosis is a chronic and recurrent disease defined as the presence and proliferation of endometrial glands and stroma outside the uterine cavity. It affects up to 6-10% of women of reproductive age and can be classified into superficial, ovarian, and deep infiltrating endometriosis (DIE). Deep infiltrating endometriosis can be associated with pain symptoms and pelvic floor muscle hypertone. Moreover, it may be responsible of bowel, urinary, and sexual dysfunctions with impairment of women's quality of life. Few studies have investigated the role of physiotherapy in women with DIE. Here, we aimed first to evaluate the effects of pelvic floor physiotherapy (PFP) on urinary, bowel, and sexual functions. Secondly, we aimed to evaluate the effects of ultrasound visual feedback during PFP on pelvic floor and subjective modifications in the frequency of sexual intercourse. Materials and Methods: This randomized controlled trial was conducted between June 2018 and December 2019 at our tertiary center. Nulliparous women with DIE and superficial dyspareunia were enrolled. At first examination, levator hiatal area (LHA) assessed with 3D/4D transperineal ultrasound, pain symptoms, urinary, bowel, and sexual functions were evaluated. Then, women were randomly assigned to no intervention (control group) or treatment with five individual sessions of PFP (experimental group), and after four months women underwent a second examination. Urinary, bowel, and sexual functions were assessed with validated questionnaires at first and second examinations. In particular, the Bristol Female Lower Urinary Tract Symptoms questionnaire was used to evaluate urinary symptoms, the Knowles-Eccersley-Scott-Symptom questionnaire to assess the presence of constipation, and the Female Sexual Function Index to investigate sexual function. Study outcomes were the comparisons among groups in terms of differences in actual changes in median of questionnaire scores between first and second examinations. Results: Thirty women (17 in the experimental group and 13 in the control group) completed the study. No significant differences were found between the two groups regarding urinary, bowel, and sexual functions, although women in the experimental group showed a tendency towards an improvement in constipation symptoms. Conclusion: In women with DIE, PFP does not appear to affect urinary, bowel, and sexual functions. Therefore, despite the improvement in superficial dyspareunia, chronic pelvic pain, and PFM relaxation with high treatment satisfaction, women should be informed about the unclear impact of PFP on urinary, bowel, and sexual functions. Larger studies are necessary to further investigate the impact of PFP on these functions.

Endometriosis and Adolescence: The Impact of Dysmenorrhea

Endometriosis affects approximately 10% of premenopausal women worldwide. Despite its impact on quality of life, the delay in diagnosing this chronic disease is well known. Many patients with endometriosis report having suffered from dysmenorrhea and chronic pelvic pain in adolescence or at a young age. However, this painful symptom is often highly underestimated and considered a normal and transient symptom in young women. The real prevalence of endometriosis in adolescence remains uncertain. Some authors recently described at least one ultrasound feature of endometriosis in 13.3% of a general population of adolescent girls, which increased to 35.3% in young girls with severe dysmenorrhea. Dysmenorrhea is classified as primary dysmenorrhea or secondary dysmenorrhea. Primary dysmenorrhea is defined as a menstrual pain without organic disease, while secondary dysmenorrhea is defined as a menstrual pain associated with organic pelvic pathology. Since endometriosis represents the main cause of secondary dysmenorrhea in adolescents and young women, it is important to determine whether the patient has primary dysmenorrhea or additional suggestive symptoms related to endometriosis. Endometriosis in adolescent patients is a challenging problem with clinical and pathological differences compared with its presentation in premenopausal women. Adolescents and young women with dysmenorrhea and painful symptoms that suggest endometriosis should be referred to dedicated endometriosis centers for an early diagnosis and appropriate medical and surgical management. This paper aims to describe the role of dysmenorrhea in adolescents and the management of these young patients to confirm or exclude endometriosis.

Prevalence of urinary dysfunction after minimally invasive surgery for deep rectosigmoid endometriosis

PURPOSE

This study aimed to assess the prevalence and progression of lower urinary tract symptoms following laparoscopic surgery for deep-infiltrating endometriosis of the rectosigmoid and identify preoperative factors associated with worse postoperative outcomes.

METHODS

Prospective, observational study.

SETTINGS

single-center, referral hospital for endometriosis. Patients undergoing laparoscopic surgery for deep-infiltrating endometriosis of the rectosigmoid colon between October 2016 and October 2018.

MAIN OUTCOME MEASURES

urinary function was assessed with the validated Portuguese language version of the International Prostate Symptom Score, which is also used in women. The score was collected before and after surgery. The Wilcoxon signed-rank test was used to compare pre and postoperative scores and the chi-square test compared symptoms categorized by severity.

RESULTS

Fifty-three patients were assessed and 44 were included. Concerning urinary symptoms after surgery, the irritative symptoms prevailed over the obstructive ones. Additionally, 58.8% and 54.5% of the women reported moderate or severe symptoms at pre and postoperative, respectively. In at least one questionnaire category, the postoperative questionnaire scores increased in ten (22.7%) participants. A statistically significant difference was found comparing the changes from absent/mild to moderate/severe IPSS categories (P = 0.039). No significant changes were identified in any of the International Prostate Symptom Score pre and postoperatively (P = 0.876).

CONCLUSIONS

There was a high prevalence of pre and postoperative urinary symptoms. Patients with preoperative moderate/severe International Prostate Symptom Score are at risk of persisting urinary dysfunction after surgery for rectosigmoid deep endometriosis.

Laparoscopic ureteroneocystostomy and round ligament bladder hitching for ureteral stenosis in parametrial deep endometriosis: Our tips for a tension-free anastomosis

OBJECTIVE

To investigate the feasibility and the efficacy of laparoscopic ureteroneocystostomy with round ligament bladder hitching.

METHODS

This is a monocentric retrospective study. Enrolled patients affected by deep endometriosis underwent laparoscopic nerve-sparing parametrectomy and monolateral ureteroneocystostomy with bladder suspension to the round ligament. Perioperative and postoperative outcomes were collected, as well as urinary and pain symptoms before and after surgery.

RESULTS

Laparoscopic ureteroneocystostomy with round ligament bladder hitching was performed in nine women. The most frequent postoperative complication was post-voiding urinary retention (22.2%). No ureteral fistula or stenosis of the anastomosis was reported.

CONCLUSION

In selected cases of ureteral resection and reimplantation, performing a round ligament bladder hitching allowed us to overcome the ureteral gap. This is a safe and feasible procedure to ensure stability of the anastomosis and avoid the possible disadvantages of the "standard" psoas hitch procedure.

Comparing the quality of life of endometriotic patients' before and after treatment with normal and infertile patients based on the EHP30 questionnaire

OBJECTIVE

This study aimed to determine the quality of life (QOL), in patients with endometriosis ± infertility (B and C groups) and compare those to healthy women, and also infertile groups without endometriosis as a control groups (A and D), considering the fact that endometriosis and infertility reduces the quality of life in patients.

METHODS

The present prospective comparative study was carried out between January 2018 and September 2020. A total of 400 women were included (100 women in each group). The participants filled in a validated questionnaire of quality of life, Endometriosis Health Profile-30 (EHP-30), and a visual analog scale of pain used, at the first visit, and 3 months after the medical or surgical treatment in the endometriosis group without infertility, additionally.

RESULTS

The majority of the patients were married, categorized in the middle-class of socio-economic state and housewives. They were of Persian descent. BMI was high in the infertile groups; however, the time of infertility was not different between the two groups of B and C (P = 0.054). The mean score of QOL was significantly lower in B, C, and D groups in comparison to the healthy women as the control group (A) (P < 0.001). Moreover, the infertile group (B), in comparison to endometriosis ± infertility groups (C and D), had the lowest mean score of QOL (P < 0.001). In each group, those who were older and had better educational level reported a better quality of life than other participants in that group. Social support plays a very important role in reducing the endometriosis related pain symptoms both before and after treatment. Three months after the treatment of endometriosis (D), a significant improvement was observed in all the aspects of QOL-related endometriosis. Nonetheless, the improvement of the quality of life in the surgical group was significantly higher than that in the medical treatment. The mean visual analog score of pain decreased from 62.22 ± 22.78, to 5.15 ± 2.73 following the surgical treatment (P < 0.001).

CONCLUSION

The lowest quality of life belonged to the infertile group, followed by the endometriosis group. The quality of life of the endometriosis group improved after the treatment. Thus, endometriotic patients' treatment in terms of improvement of quality of life should be considered by all professional health care teams.

Surgical and functional impact of nerve-sparing radical hysterectomy for parametrial deep endometriosis: a single centre experience

Background: Deep endometriosis (DE) usually creates a distortion of the retroperitoneal anatomy and may infiltrate the parametria with an oncomimetic pathway similar to cervical cancer. The condition represents a severe manifestation of endometriosis that may result in a functional impairment of the inferior hypogastric plexus. An extensive surgical resection may be required with an associated risk of increased neurogenic postoperative pelvic organ dysfunction. Objectives: To evaluate the post-operative function and complications following hysterectomy with posterolateral parametrial resection for DE. Materials and Methods: In total, 23 patients underwent radical hysterectomy for DE with the parametria involved. The severity of pain was assessed by the Visual Analogue Scale (VAS) score. The KESS, GQLI, BFLUTS and FSFI were used to examine the gastrointestinal, urinary and sexual functions respectively. Intra and post-operative complications were recorded. Main outcome measures: The main outcomes were gastrointestinal, urinary and sexual function and intra and post-operative complications. Results: Dyschezia, dyspareunia and chronic pelvic pain were significantly reduced following hysterectomy. Furthermore, an improvement of gastrointestinal function was observed, while sexual functions, examined by FSFI and urinary symptoms, examined by BFLUTS, was not shown to be significant. Conclusion: The modified nerve-sparing radical hysterectomy for DE results in an improvement of symptoms. Nevertheless, despite the nerve-sparing approach, this procedure may be associated with a not-negligible risk of post-operative bladder voiding deficit. What is new? This is the first study that focuses on parametrial endometriosis using validated questionnaires to assess functional outcomes following radical hysterectomy for DE.

Impact of Nerve-Sparing Postero-Lateral Parametrial Excision for Deep Infiltrating Endometriosis on Postoperative Bowel, Urinary and Sexual Function

OBJECTIVE

To evaluate the functional outcomes of nerve-sparing surgery for deep infiltrating endometriosis (DIE) with or without postero-lateral parametrectomy.

METHODS

A multicenter, observational, retrospective, cohort study was performed including all symptomatic women who underwent nerve-sparing laparoscopic excision of DIE and preoperative and postoperative assessment of functional outcomes through validated questionnaires between April 2019 and March 2020. Women with postero-lateral parametrial DIE (P-group) and women with no parametrial involvement (NP-group) were compared in term of preoperative and postoperative: functional outcomes related to pelvic organs assessed through validated questionnaires (KESS and GIQLI for bowel function, BFLUTS for urinary function, and FSFI for sexual function); pain symptoms at 3-month follow-up assessed through a 11-points Visual Analogue Scales (VAS) for dyschezia, dysmenorrhea, dyspareunia and chronic pelvic pain; surgical outcomes; rate of urinary voiding dysfunction at 3-month follow-up.

RESULTS

One-hundred patients were included: 69 in the P-group and 31 in the NP-group. Preoperative and postoperative values of questionnaires, pain symptoms and postoperative complications rates were comparable between the two groups, except for postoperative dyspareunia and sexual dysfunction, which were statistically higher in the P-group. Only patients in the P-group experienced urinary voiding dysfunction, but no statistical significance was reached (p=.173).

CONCLUSION

Postero-lateral parametrectomy for DIE appears associated to a higher risk of post-operative dyspareunia and sexual dysfunction.

Is the Deep Endometriosis or the Surgery the Cause of Postoperative Bladder Dysfunction?

STUDY OBJECTIVE

To assess if deep endometriosis surgery affects the bladder function.

DESIGN

Prospective multicenter observational study (Canadian Task Force classification II-2).

SETTING

Academic researches centers.

PATIENTS

Thirty-two patients with diagnosis of deep endometriosis requiring surgery.

INTERVENTIONS

Women were evaluated with urodynamic studies, ICIQ-UI SF and ICIQ-OAB questionnaires before and 3 months after surgery.

MEASUREMENTS AND MAIN RESULTS

The main outcome measure was the impact of deep endometriosis surgery on urodynamic parameters. All cystomanometric parameters showed an improvement postoperatively: in particular, the first desire to void (120 vs 204 ml, p<0.001) and the bladder capacity (358 vs 409 ml, p=0.011) increased significantly after surgery. Of the uroflow parameters, the maximal voiding flow improved significantly postoperatively (19 vs 25 ml/sec, p=0.026). The ICIQ-UI SF (2.5 vs 0, p=0.0005) and ICIQ-OAB (4.3 vs 1.2, p<0.001) questionnaires showed a significant postoperative improvement too.

CONCLUSIONS

Our data show that in a selected population of patients with DE (not requiring bowel or urethral resection), the bladder function improves after surgery, both during filling and on voiding urodynamic phases. Postoperatively, patients with DE become aware of bladder filling later, have a higher bladder capacity and have a higher maximal flow. The postoperative urodynamic results are corroborated by the improved scores on the bladder questionnaires.

Urinary Function after Surgery for Deep Endometriosis: A Prospective Study

STUDY OBJECTIVE

To compare urinary function before and after surgery in patients undergoing laparoscopy for deep endometriosis and to measure the rate of postoperative deterioration in urinary function after surgery.

DESIGN

Prospective questionnaire-based observational cohort study.

SETTING

Tertiary university-affiliated hospital.

PATIENTS

Included were 149 women who underwent surgery for deep endometriosis.

INTERVENTIONS

Participants completed the international consultation on incontinence female lower urinary tract symptoms long-form questionnaire before surgery and 6 weeks, 6 months, and 12 months after surgery.

MEASUREMENTS AND MAIN RESULTS

Bladder filling, voiding, and urinary incontinence summary scores were compared before and after surgery with mixed-effects linear regression analysis (correlated observations). Individual domains comprising the summary scores and their bother scores were also compared before and after surgery. Filling score at 6 weeks (3.7 ± 2.6), 6 months (3.2 ± 2.2), and 12 months (3.4 ± 2.2) improved from presurgery scores (4.2 ± 2.6) (p-value for the difference between before and after surgery: p <.001, p = .009, and p = .02 for 6 weeks, 6 months, and 12 months, respectively). No change was observed after surgery in bladder voiding score. Incontinence score improved at 6 weeks after surgery (presurgery and 6-week scores: 2.5 ± 3.3 and 1.6 ± 2.2, respectively, p <.001) but not thereafter. Patients with low preoperative summary scores had higher summary scores (worse function) after surgery, and patients with high preoperative scores had lower summary scores (improved function) after surgery.

CONCLUSION

Urinary function improved after laparoscopy for deep endometriosis. Greatest improvement was found in patients with worse preoperative function, whereas postoperative deterioration in urinary function was found for patients with initially normal function. More research is needed to better identify the subpopulations in whom surgical intervention provides symptomatic benefit or deterioration.

Predictive Factors for Voiding Dysfunction after Surgery for Deep Infiltrating Endometriosis

STUDY OBJECTIVE

To evaluate the prognostic value of pre- and perioperative factors for voiding dysfunction after surgery for deep infiltrating endometriosis (DIE).

DESIGN

Single-center retrospective cohort study.

SETTING

University hospital.

PATIENTS

A total of 198 women with DIE in the posterior compartment who underwent surgery and a postoperative bladder scan.

INTERVENTIONS

Surgical resection of the DIE nodule from the dorsal compartment.

MEASUREMENTS AND MAIN RESULTS

After surgery, 41% of the patients initially experienced voiding dysfunction (defined as >100 mL postvoid residual urine volume at second bladder scan). The number decreased to 11% by the time of hospital discharge. Among those with a need for self-catheterization after discharge (n = 17), voiding dysfunction lasted for a median of 41 days before a return to normal bladder function, with a residual urine volume of <100 mL. The preoperative presence of DIE nodules in the ENZIAN compartment B was associated with postoperative voiding dysfunction (p = .001). The hazard ratio for elevated residual urine volume was highest when the disease stage was B3 (hazard ratio 6.43; CI, 2.3-18.2; p <.001), describing a nodule diameter of >3 cm in lateral distension. Receiver operating characteristic curve analyses showed that a first residual urine volume >220 mL has a good predictive value for the risk of intermittent self-catheterization (area under the receiver operating characteristic curve 0.893; p <.001).

CONCLUSION

Postoperative voiding dysfunction is frequent; of note, in most cases the problem is temporary. When DIE with an ENZIAN classification B is noted intraoperatively and, most of all, when the diameter of the lesion is >3 cm, a higher risk of postoperative voiding dysfunction is to be expected.

Predictive approach in managing voiding dysfunction after surgery for deep endometriosis: a personalized nomogram

INTRODUCTION AND HYPOTHESIS

The aim was to develop a nomogram based on clinical and surgical factors to predict the likelihood of voiding dysfunction after surgery for deep endometriosis.

METHODS

This was a retrospective study of 789 patients (training set) who underwent surgery for deep endometriosis with colorectal involvement from January 2005 through December 2017 at Tenon University Hospital. A multivariate logistic regression analysis of selected risk factors was performed to construct a nomogram to predict postoperative voiding dysfunction. The nomogram was externally validated in 333 patients (validation set) from Rouen University Hospital.

RESULTS

Postoperative voiding dysfunction occurred in 23% of the patients (180/789) in the training set. Age, colorectal involvement/management, colpectomy and parametrectomy were the main factors associated with an increased risk of voiding dysfunction and were included in the nomogram. The predictive model had an internal concordance index of 0.79 (95% CI: 0.77-0.81) after the 200 repetitions of bootstrap sample corrections and showed good calibration. The ROC area related to the nomogram for external validation was 0.74 (95% CI: 0.72-0.76).

CONCLUSIONS

The nomogram we present here, based on four clinical and imaging characteristics, could be useful in predicting postoperative voiding dysfunction for women undergoing surgery for deep endometriosis. Patients could thus be better informed about this postoperative risk and the surgical strategy adapted according to individual risk. The accuracy of the tool was validated externally but additional validation is required.

Multidisciplinary laparoscopic management of deep infiltrating endometriosis from 2010 to 2017: A retrospective cohort study

Background

Laparoscopy has become the standard of care in the surgical management of deep infiltrating endometriosis (DIE). However, it is a challenging procedure with a high complication rate. Despite the benefits of the minimally invasive approach, DIE resection is often performed by surgeons without adequate training, especially in developing countries like Chile.

Objective

To asses our experience in the diagnosis and laparoscopic management of DIE during seven years.

Methods

A retrospective cohort study of data including 137 patients with pathology-proven DIE. Surgical and fertility outcomes were evaluated.

Results

All procedures were performed laparoscopically without conversion. Dysmenorrhea and dyspareunia were the most common symptoms in 85.4% and 56.9%, respectively. Uterosacral ligaments were the most common DIE location. Endometrioma was present in 48.9% of cases. Median operative time was 140 minutes; however, it was longer in cases requiring bowel surgery (p < 0.0001). The complication rate was 10.9%. Median follow-up was 24.5 months. The pregnancy rate was 58.1% and 90% of patients reported significant symptom relief after surgery.

Conclusion

Laparoscopic surgical management of DIE is effective and safe but it must be performed in tertiary centers with the availability of multidisciplinary teams.

Multidisciplinary management of women with pelvic organ prolapse, urinary incontinence and lower urinary tract symptoms.A clinical and psychological overview

Although female sexual dysfunctions are common among women with urogynecological conditions, they have not been thoroughly studied and there are still many questions without an answer. The recent evidence on sexual disorders in women with urogynecological diseases shows a quite wide spectrum of therapeutic approaches, which require the physicians to take into account not only the primary symptoms, but also all the associated factors negatively affected. It has been widely underlined that gynecological diseases are often associated with high stress and have a negative impact on quality of life and psychological well-being of women affected. For this reason, a multidisciplinary approach for the management of these diseases is highly recommended. Also in the case of urogynecological disorders, it is important to take into account psychological outcomes throughout the diagnostic and therapeutic process. In the light of these considerations, the aim of this short review is to evaluate the impact of the main urogynecological diseases and the currently available therapeutic options in order to improve quality of life and sexuality of these patients and to stress the need for a multidisciplinary approach in order to minimize the negative consequences of these diseases for the sexual well-being of women and their partners.

Pelvic floor dysfunction at transperineal ultrasound and voiding alteration in women with posterior deep endometriosis

INTRODUCTION AND HYPOTHESIS

Posterior deep infiltrating endometriosis (DIE) has been associated with pelvic floor muscle (PFM) alteration and voiding dysfunction (VD). The aim of this study is to evaluate the correlation between the presence of VD and altered PFM morphometry, objectively evaluated using 3D/4D transperineal ultrasound at rest and during dynamic maneuvers, in patients with posterior DIE.

METHODS

A prospective study was conducted on 108 symptomatic women scheduled for surgical removal of posterior DIE. The study population was divided in two groups according to presence or absence of VD on the Bristol Female Lower Urinary Tract Symptoms (BFLUTS). A 3D/4D transperineal ultrasound was performed to compare the following PFM morphometric parameters: levator hiatus area (LHA), antero-posterior (AP) and left-right (LR) diameters and levator ani muscle (LAM) coactivation. LAM coactivation was defined as the paradoxical contraction of the pelvic floor muscle during the Valsalva maneuver causing a smaller LHA than in the resting state.

RESULTS

Forty-eight (45.2%) women presented VD, while 60 (54.8%) women did not report any voiding complaints. Baseline characteristics did not significantly differ between the two groups. We did not find any significant statistical differences in PFM parameters between the two groups, except for a higher rate of levator ani muscle coactivation in women with VD compared with women without VD [64.6% (31/48) versus 31.7% (19/60), respectively; p = < 0.001].

CONCLUSIONS

In women affected by posterior DIE, LAM coactivation at 3D/4D transperineal ultrasound seems to be more frequent in patients with than without VD.

Surgery for Endometriosis Improves Major Domains of Quality of Life: A Systematic Review and Meta-Analysis

Because surgery for endometriosis can involve severe complications, it is important to determine if the patient's quality of life (QOL) is indeed improved after surgery. A systematic review and meta-analysis, when appropriate, was conducted and included 38 studies that assessed the QOL using validated questionnaires administered before and after surgery. Results were grouped according to the type of endometriosis reported: all types endometriosis, deep infiltrative endometriosis (DIE), and bowel endometriosis. Quantitative analysis was performed on 17 homogeneous studies. Pooled response mean differences between the 36-Item and 12-Item Short Form Survey (SF-36 and SF-12) showed significant improvement in Mental Component Score (MCS) after surgery for all types of endometriosis (.21; 95% confidence interval [CI], .04-.38); significant improvement after surgical treatment for DIE in Vitality (.67; 95% CI, .41-.94), Social Functioning (.59; 95% CI, .18-.99), Role Emotional .49; 95% CI, .02-.97), Mental Health (.39; 95% CI, .03-.74), Physical Functioning (.93; 95% CI, .49-1.38), Bodily Pain (1.23; 95% CI, .47-1.99), General Health (.57; 95% CI, .02-1.12), MCS (.55; 95% CI, .10-1.00), and Physical Component Score (PCS; .73; 95% CI, .27-1.18); and significant improvement after surgery for bowel endometriosis for all 8 domains (Vitality [1.00; 95% CI, .56-1.43], Social Functioning [.97; 95% CI, .57-1.37], Role Emotional [1.17; 95% CI, .7-1.63], Mental Health [.94; 95% CI, .5-1.38], Physical Functioning [.74; 95% CI, .3-1.18], Role Physical [1.25; 95% CI, .75-1.76], Bodily Pain [1.39; 95% CI, .79-1.98], General Health [.84; 95% CI, 1.46-1.22]), MCS (.93; 95% CI, .47-1.40), PCS (.82; 95% CI, .40-1.23), and total score (1.15; 95% CI, .48-1.83). Only 1 study assessed patients with minimal disease and showed significant improvement in PCS (p = .002) and MCS (p <.001). This systematic review reveals that surgery for endometriosis resulted in overall improvement in most health domains of health-related QOL, with the greatest improvement found in the Bodily Pain domain.

Colorectal Anastomotic Stenosis: Lessons Learned after 1643 Colorectal Resections for Deep Infiltrating Endometriosis

STUDY OBJECTIVE

To evaluate the incidence, risk factors, and treatment of colorectal anastomotic stenosis in patients who undergo rectosigmoid resection for deep infiltrating endometriosis (DIE).

DESIGN

Retrospective analysis of a prospective database (Canadian Task Force classification III).

SETTING

Public medical center.

PATIENTS

All women who underwent laparoscopic rectosigmoid resections for DIE at our hospital between January 2002 and December 2016.

INTERVENTION

All patients were evaluated clinically and endoscopically at 1 month and 3 months after bowel resection. Stenosis was defined as a lack of passage through the anastomosis of a 12-mm proctoscope. Symptomatic stenosis was defined as the presence of endoscopically confirmed stricture accompanied by at least 2 of the following symptoms: constipation, need to push, tenesmus, and ribbon stools. Only patients with symptomatic stenosis were studied. Demographic data, surgical techniques, and postoperative complications were recorded prospectively. Treatments and outcomes of anastomotic symptomatic strictures were analyzed.

MEASUREMENTS AND MAIN RESULTS

A total of 1643 patients underwent laparoscopic rectosigmoid resection at our hospital between January 2002 and December 2016. Among these, 104 patients (6.3%) presented with symptomatic anastomotic stenosis. The median patient age was 27 years (range, 23-44 years), and the median interval between diagnosis and the onset of symptomatic stenosis was 57 days (range, 21-64 days). The only statistically significant predictors of anastomotic stenosis were the presence of ileostomy (p = .01) and previous pelvic surgery (p = .002). Treatment of choice was always conservative. Of the 104 patients in the study cohort, 90 (86.5%) underwent 3 endoscopic dilatations. No patient required reoperation.

CONCLUSION

The anastomotic stricture is a recognized complication in patients following intestinal resection for DIE, and protective ileostomy is the sole modifiable factor related to anastomotic stenosis. Endoscopic dilatation is a valid option to treat this complication.

[Extragenital endometriosis: Parietal, thoracic, diaphragmatic and nervous lesions. CNGOF-HAS Endometriosis Guidelines]

According to some studies, extragenital endometriosis represents 5% of the localisations. Its prevalence seems to be underestimated. The extra pelvic localisation can make the diagnosis more difficult. Nevertheless, the recurrent and catamenial symptomatology can evoke this pathology. Surgery seems to be the unique efficient treatment for parietal lesions. Pain linked to nervous lesions (peripheric and sacral roots) seems to be underestimated and difficult to diagnose because of various localisations. Neurolysis seems to have encouraging results. Diaphragmatic lesions are often discovered either incidentally during laparoscopy, or by pulmonary symptomatology as recurrent catamenial pneumothorax or cyclic thoracic pain. Surgical treatment seems as well to be efficient.

[Detrusor sphincter disorders associated with deep endometriosis: Systematic review of the literature]

CONTEXT

Detrusor sphincter disorders impact quality of life in case of deep endometriosis. Surgery, which is one of the main treatments, is responsible of detrusor sphincter disorders. Since then, it is essential to look for those disorders and find the right medical care.

OBJECTIVE

To specify the detrusor sphincter disorders, its links with anatomical localisation of deep endometriosis and its prognosis after surgery.

METHODS

A literature review was carried out via PubMed^® with the followings keywords: "deep endometriosis", "urinary disorders", "voiding dysfunction" and "urinary dysfunction". Prospective and retrospective studies as well as previous reviews were analyzed.

RESULTS

Concerning bladder deep endometriosis, detrusor sphincter disorders are observed in more than 50%. Resection of the lesions allows a clear improvement or even a disappearance of the disorders. Concerning the deep endometriosis of the posterior part of the pelvis, disorders are highlighted even if women do not complain of urinary trouble. Detrusor sphincter disorders are observed in 2 to 50% and women with colorectal localisation have the highest rate. Resection of the lesions improves the symptoms described preoperatively but also provides de novo disorders of up to 47.5%. In terms of prevention, the nerve sparing surgery respects the pelvic nerve plexus, and reduces post-operative morbidity to less than 1%.

CONCLUSIONS

Detrusor sphincter disorders associated with deep endometriosis have a prognosis if their management is adapted. Well-conducted interviews and standardized questionnaires is necessary to diagnosis them. Urodynamic test may be discussed in case of bladder endometriosis, including for urinary asymptomatic patients. The management of the detrusor sphincter disorders requires a complete resection of the nodules of deep endometriosis. In the case of posterior endometriosis, a dissection must be performed respecting the retroperitoneal vegetative nerves.

Pelvic floor muscle dysfunction on 3D/4D transperineal ultrasound in patients with deep infiltrating endometriosis: a pilot study

OBJECTIVE

Pelvic floor muscle (PFM) dysfunction seems to play an important role in the pathophysiology of pelvic pain, including that associated with deep infiltrating endometriosis (DIE). The aim of this study was to evaluate the static and dynamic morphometry of the PFM using three-dimensional (3D) and four-dimensional (4D) transperineal ultrasound in women with DIE compared with asymptomatic healthy women.

METHODS

This was a pilot, prospective study conducted at our tertiary center between March and November 2015. Fifty nulliparous women with DIE (study group) and 35 nulliparous asymptomatic healthy women (control group) were included. 3D/4D transperineal ultrasound examination of the PFM was performed in both groups. Levator hiatal area (LHA) and anteroposterior and left-right transverse diameters were evaluated at rest, on maximum PFM contraction and on maximum Valsalva maneuver. Persistent levator ani muscle (LAM) coactivation during Valsalva maneuver was investigated.

RESULTS

Compared with the control group, women with DIE had a smaller LHA at rest (P = 0.03) and during Valsalva maneuver (P < 0.01). Furthermore, reduction in LHA during PFM contraction (P < 0.001) and enlargement in LHA during Valsalva maneuver (P = 0.01) were significantly less marked. In comparison with controls, women with DIE presented a higher frequency of LAM coactivation during Valsalva maneuver, although this difference did not reach statistical significance (P = 0.05).

CONCLUSIONS

3D and 4D transperineal ultrasound is an objective and non-invasive method for PFM morphometry and may have a role in detecting PFM dysfunction in women with DIE. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Bladder Endometriosis: A Systematic Review of Pathogenesis, Diagnosis, Treatment, Impact on Fertility, and Risk of Malignant Transformation

CONTEXT

The bladder is the most common site affected in urinary tract endometriosis. There is controversy regarding the pathogenesis, clinical management (diagnosis and treatment), impact on fertility, and risk of malignant transformation of bladder endometriosis (BE).

OBJECTIVE

To systematically evaluate evidence regarding the pathogenesis, diagnosis, medical and surgical treatment, impact on female fertility, and risk of malignant transformation of BE.

EVIDENCE ACQUISITION

A systematic review of PubMed/Medline from inception until October 2016 was performed in accordance with the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) statement and was registered in the PROSPERO registry (www.crd.york.ac.uk/prospero; CRD42016039281). Eighty-seven articles were selected for inclusion in this analysis.

EVIDENCE SYNTHESIS

BE is defined as the presence of endometrial glands and stroma in the detrusor muscle. Ultrasonography is the first-line technique for assessment of BE owing to its accuracy, safety, and cost. Clinical management can be conservative, using hormonal therapies, or surgical. When conservative treatment is preferred, estrogen-progestogen combinations and progestogens should be chosen because of their favorable profile that allows long-term therapy. Surgery should guarantee complete removal of the bladder nodule to minimize recurrence, so transurethral surgery alone should be avoided in favor of segmental bladder resection. There is not a strong rationale for hypothesizing a detrimental impact of BE per se on fertility. Furthermore, current evidence does not support the removal of bladder endometriotic lesions because of the potential risk of malignant transformation since this phenomenon is exceedingly rare.

CONCLUSIONS

BE is a challenging condition, and the common coexistence of other types of endometriosis means that clinical management of BE should involve collaboration between gynecologists and urologists.

PATIENT SUMMARY

In this article we review available knowledge on bladder endometriosis. The review provides a useful tool to guide physicians in the management of this complex condition.

Contribution of sacral neuromodulation to manage persistent voiding dysfunction after surgery for deep infiltrating endometriosis with colorectal involvement: preliminary results

OBJECTIVE

Around 5% of women experience persistent voiding dysfunction after surgery for deep infiltrating endometriosis (DIE) with colorectal involvement. The gold standard to manage persistent voiding dysfunction is intermittent self-catherization, but this treatment may reduce quality of life of the patients due to care constraints. The objective of our study was to assess the contribution of sacral neuromodulation (SNM) in the management of persistent voiding dysfunction secondary to surgery for DIE with colorectal resection.

STUDY DESIGN

Five patients referred for persistent voiding dysfunction after surgery for DIE with colorectal resection were included and fitted with a temporary SNM system to test for feasibility. This consisted of placing an electrode unilaterally next to the S3 sacral nerve root and connecting it to an external pacemaker. The patients wore the electrode and the external neurostimulator for 21 days and kept a voiding diary. The SNM test was considered positive when a 50% decrease in self-catheterization was achieved after removal of the electrode. The system was implanted permanently in patients with a positive SNM test. Urodynamic tests were performed before and after the SNM test.

RESULTS

Two of the five patients had a positive SNM test and were implanted permanently. At 40 months the first patient had completely stopped self-catheterization and the second patient was performing self-catheterization twice a day with a post voiding residue volume of less than 100ml at 52 months.

CONCLUSION

SNM could be a curative technique in some patients with persistent voiding dysfunction after surgery for DIE. Further studies are required to better select patients who might benefit from SNM testing and subsequent device implantation.