Randomized Trial of Single-Incision Midurethral Sling And Laparoscopic Burch Colposuspension: Postoperative Surgical Outcomes and Complications

STUDY OBJECTIVE

Various retropubic and midurethral sling techniques have shown high cure rates in the treatment of stress urinary incontinence (SUI). The aim of this study was to compare single-incision midurethral sling (SIMS), and laparoscopic Burch colposuspension (LBC) procedures in patients with SUI in terms of the effectiveness, patient satisfaction, surgical complications and results.

DESIGN

This is a prospective randomised study.

SETTING

A university tertiary hospital PATIENTS: Forty patients with clinically and/or urodynamically proven SUI who agreed to surgical treatment were randomized to the SIMS and LBC groups and included in the study.

INTERVENTIONS

Patients were treated with SIMS and LBC operations.

MEASUREMENTS AND MAIN RESULTS

Demographic characteristics of patients, physical and pelvic examination, preoperative and postoperative clinical findings, Kings Health Questionnaire (KHQ) form, Female Sexual Function Index (FSFI) and Prolapse Quality of Life Questionnaire (P-QoL) form, postoperative Day 1 Visual Analogue Scale (VAS) score, and postoperative complications were recorded. Objective and subjective success rates were recorded by re-evaluating the patients in the first and sixth months of the operation. Objective success was defined as having a negative stress test and subjective success was defined as the absence of stress-induced urine leakage after surgery in a validated questionnaire. The primary result of our study was considered to be objective success, while the secondary result was subjective success and life quality tests. Twenty patients each in the SIMS group and the LBC group were included in the study. No significant difference was found in objective success (90% vs. 85%, p=0.633) or subjective success (85% vs. 75%, p=0.695) between the two groups at 6-month follow-up. A significant improvement in life quality was observed in the postoperative period for both groups; however, the difference between the groups was not significant. There was an improvement in sexual function in both groups. Nonetheless, while this improvement was significant in the SIMS group, it was not significant in the LBC group. Additionally, surgery time, catheterization time and hospitalization time were shorter in the SIMS group than in the LBC group. The VAS score on postoperative day 1 was lower in the SIMS group. Groups were not different in terms of peroperative and postoperative complications.

CONCLUSION

This preliminary study is the first randomized study which compares the LBC and SIMS procedures in the literature. It shows that SIMS and LBC procedures have not different objective and subjective success rates in the short term. It was also observed that they increase both sexual and life quality results in a positive and similar way.

Age-Related Changes in Urethral Structure and Responds to Injury: Single-Cell Atlas of a Rat Model of Vaginal Birth Injury induced Stress Urinary Incontinence

Stress urinary incontinence (SUI) greatly affects the daily life of numerous women and is closely related to a history of vaginal delivery and aging. We used vaginal balloon dilation to simulate vaginal birth injury in young and middle-aged rats to produce a SUI animal model, and found that young rats restored urethral structure and function well, but not the middle-aged rats. To identify the characteristics of cellular and molecular changes in the urethral microenvironment during the repair process of SUI. We profiled 51,690 individual female rat urethra cells from 24 and 48 weeks old, with or without simulated vaginal birth injury. Cell interaction analysis showed that signal networks during repair process changed from resting to active, and aging altered the distribution but not the overall level of cell interaction in the repair process. Similarity analysis showed that muscle, fibroblasts, and immune cells underwent large transcriptional changes during aging and repair. In middle-aged rats, cell senescence occurs mainly in the superficial and middle urothelium due to cellular death and shedding, and the basal urothelium expressed many Senescence-Associated Secretory Phenotype (SASP) genes. In conclusion, we established the aging and vaginal balloon dilation (VBD) model of female urethral cell anatomy and the signal network landscape, which provides an insight into the normal or disordered urethra repair process and the scientific basis for developing novel SUI therapies.

Application of the decisional regret scale (DRS) in men undergoing anti-incontinence procedures for stress urinary incontinence

Background

Decisional regret (DR) has previously been applied to other urologic issues (hypospadias, prostate cancer). The present study seeks to evaluate certain patient factors that directly correlate to high DR scores in anti-incontinence procedures.

Methods

Medical records for 119 patients undergoing anti-incontinence procedures between 2009 and 2020 were retrospectively reviewed. Forty-one patients were accessible for telephone follow-up and provided a Decisional Regret Scale (DRS) questionnaire. If patients had both a sling and an artificial urinary sphincter (AUS) placed, questionnaires were administered for each. DRS score was quantified in accordance with prior literature, with scores ranging 0-100. We subdivided patients based on demographics and surgical data, correlating this with DRS score.

Results

In 41 patients, 46 procedures (13 slings, 33 AUS) were performed. Thirty-nine (95.1%) men underwent robotic-assisted laparoscopic prostatectomy, and 11 (26.8%) men reported prior pelvic radiation. Post-procedural continence, irrespective of procedure, yielded an average 2±1.56 pads per day (PPD). Mean DRS score across the cohort was 29.78. DRS score was subdivided into mild, moderate, and severe, with majority noting "none to mild" regret (63%), 15.2% reporting moderate and 21.7% severe. Predictors of higher regret included history of radiation (P=0.056), choice of anti-incontinence procedure (P=0.011), and need for surgical revision (P=0.00042). DR was unrelated to race, complete continence, and time to follow-up.

Conclusions

DRS has recently been applied to anti-incontinence procedures for male stress incontinence; our study highlights novel findings not previously assessed. Majority of men had minimal regret with a subset that had significant regret-history of radiation, multiple revisions/explant, and those who elected for sling upfront. These results highlight the importance of patient selection and pre-operative counselling.

Anatomical and symptomatic mid-term outcomes of patients with isolated anterior compartment defect repair or stress urinary incontinence : Anatomical and symptomatic outcomes of anterior compartment repair or SUI

BACKGROUND

An evaluation of preoperative and postoperative 12th month Pelvic Organ Prolapse Quantification (POP-Q) and Lower Urinary Tract Symptoms (LUTS) changes in patients operated for the diagnosis of isolated anterior compartment defect (ACD) or Stress Urinary Incontinence (SUI).

METHOD

Patients who were diagnosed with isolated ACD or SUI were retrospectively analyzed at urogynecology unit of our tertiary referral center. All pelvic examinations were performed by the same experienced urogynecologist. Pre-operative and post-operative 12th month POP-Q scores and the responses to a detailed LUTS questionnaire in the unit were assessed.

RESULTS

Of the 90 patients with isolated ACD or SUI, midurethral sling with mini-sling and retropubic transobturator tape methods was applied in 24, iliococcygeal fixation in 28, trapezoid repair in 9 patients, anterior bridge operation in 14, and plication of pubocervicovaginal fascia to the cervical ring in 15. We compared the POP-Q score and pre and post-operative 12th month LUTS. Between pre and post-operative 12th month, there was a statistically significant difference at Aa and Ba points (p < 0.00, 0.001). Comparative LUTS questionnaire showed statistically significant differences in stress urinary incontinence, frequency, urgency, abnormal emptying, nocturia, pelvic pain (p: <0.001, p < 0.001, p: <0.001, p:0.001, p:<0.001, p:0.003, respectively).

CONCLUSION

Anatomical and symptomatic recovery is achieved with appropriate surgical intervention in women with isolated ACD or SUI. When LUTS were evaluated in terms of symptomatic recovery, they were found to be related not only to symptoms involving the anterior compartment, but also to symptoms involving other compartments.

Establishment and validation of a simple nomogram for predicting early postpartum stress urinary incontinence among women with vaginal delivery: a retrospective study

BACKGROUND

Stress urinary incontinence (SUI) is a common public health issue that negatively impacts the quality of life for women worldwide, of which early detection and rehabilitation are consequently pivotal. The aim of this study is to establish a simple nomogram for identifying women at risk of postpartum SUI.

METHODS

A retrospective study was conducted in a tertiary specialized hospital in Shanghai, China. The study included only women with singleton, full-term, and vaginal deliveries. 2,441 women who delivered from July 2019 to November 2019 were included in the training cohort, and 610 women who delivered from January 2022 to February 2022 were included in the validation cohort. SUI was determined by the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI-SF). Univariate and multifactorial logistical regression were used to identify independent risk factors for postpartum SUI and further construct the nomogram accordingly. Based on concordance statistics (C-statistics), calibration curves, and decision curve analyses, we evaluated the performance of the nomogram in the training cohort and the validation cohort. In addition, the model was validated internally in the training cohort through cross-validation.

RESULTS

There were no significant statistically differences in important baseline data such as age, pre-pregnancy BMI, and parity between the training and validation cohorts. SUI was observed in 431 (17.6%) and 125 (20.5%) women in the training and validation cohorts, respectively. According to the regression analysis, age, parity, second stage of labor, infant weight, and forceps delivery were included in the nomogram. The nomogram had a C-statistic of 0.80 (95% confidence interval [CI] 0.74-0.85) for predicting SUI. C-statistics were stable in both internally cross-validated training cohort (mean 0.81) and validation cohort (0.83 [95% CI 0.79-0.87]). The nomogram's calibration curve was near the ideal diagonal line. Additionally, the model exhibited a positive net benefit from the decision curve analysis.

CONCLUSION

We have created a nomogram that can be utilized to quantify the risk of postpartum SUI for women with vaginal delivery. The model might contribute to predicting early postpartum SUI, thereby facilitating the management of SUI.

Which patient reported outcomes (PROs) and patient reported outcome measures (PROMs) do researchers select in stress urinary incontinence surgical trials? - a systematic review

INTRODUCTION AND HYPOTHESIS

The mesh controversy has highlighted the need for robust evidence of treatment safety and efficacy, particularly in the surgical treatment of stress urinary incontinence (SUI). Current trials demonstrate heterogeneity in outcomes reported as well as outcome measures used, restricting the ability to synthesize data and produce robust research evidence (Doumouchtsis et al. 5). Patient-reported outcomes (PROs) should be a focus when evaluating SUI surgery given the quality-of-life nature of this condition affecting 25-45% women worldwide (Milsom and Gyhagen 1). As part of the first step in developing a core outcome set (COS) and measures set (COMS), we aimed to systematically review RCTs evaluating SUI surgery and extract PROs and outcome measures (PROMs) used.

MATERIALS AND METHODS

We searched databases including MEDLINE and Cochrane for RCTs evaluating SUI surgical treatments from inception to January 2020. Eligibility criteria included English language and female-only subjects. PROs and PROMs were extracted and grouped into a structured inventory. PROMs were assigned to domains based on predominant theme.

RESULTS

Of 123 eligible RCTs, 116 (94%) included PROs. Forty-four different PROMs were utilized; most frequent was Patient Global Impression of Improvement (PGI-I). Fifteen PROMs were used once. The top five PROMs have evidence of validity and are highly recommended.

CONCLUSIONS

There is no consensus amongst relevant stakeholders regarding PROs or PROMs used in SUI surgery research. We propose that this consensus is required to standardize measurements and reporting and promote use of validated and reliable outcome measures. This systematic review forms the first step in the development process.

The use of mono- and combination drug therapy in men and women with lower urinary tract symptoms (LUTS) in the UK: a retrospective observational study

BACKGROUND

Combination drug therapy for lower urinary tract symptoms (LUTS) is beneficial to selected patients and recommended by guidelines. Patterns of real-world LUTS drug use, especially combination drug therapy, have not been studied extensively. Moreover, further understanding of the recent landscape is required following the introduction of the beta-3-adrenoceptor agonist mirabegron in the UK in 2013 for overactive bladder (OAB). The objective was to describe mono- and combination drug therapy use for LUTS in patients in UK clinical practice.

METHODS

This was a retrospective, descriptive, observational database study using UK Clinical Practice Research Datalink GOLD and linked databases. Men and women ≥ 18 years with a first prescription for any LUTS drug from 2014 to 2016 with ≥ 12 months continuous enrollment pre- and post-index date were included. Primary endpoints were mono- or combination drug therapy use for LUTS in male and female cohorts. Secondary endpoints were description of treatment prescribed, treatment persistence and patient demographics. Data were analyzed descriptively. Sub-cohorts were defined by drugs prescribed at index date.

RESULTS

79,472 patients (61.3% male) were included, based on index treatments. Of all men, 82.5% received any benign prostatic obstruction (BPO) drug, 25.4% any OAB drug, and 7.9% any BPO drug plus any OAB drug. As either mono- or combination drug therapy, 77.1% received an alpha-blocker, 18.9% a 5-alpha reductase inhibitor, 23.9% an antimuscarinic agent, and 2.1% mirabegron. Of all women, 94.5% received any OAB drug, 6.0% duloxetine, and 0.5% any OAB drug plus duloxetine. As either mono- or combination drug therapy, 87.7% received an antimuscarinic, and 9.7% mirabegron. In men or women receiving OAB treatment, approximately 2.5% received combination drug therapy with an antimuscarinic agent and mirabegron. For OAB drug monotherapies, mirabegron had the highest persistence in both male and female cohorts.

CONCLUSIONS

This study provides a better understanding of the recent landscape of LUTS drug use in UK clinical practice. It highlights potential undertreatment of storage symptoms in men with LUTS and the low use of combination OAB treatments.

Short and Long Term Follow up and Efficacy of Trans Obturator Tape for Management of Stress Urinary Incontinence

Background

Stress urinary incontinence (SUI) is involuntary leakage of urine on raised intra- abdominal pressure which adversely affects quality of life usually requiring surgical treatment.

Methods

This is a prospective study of efficacy, cure rates and complications of tension free transobturator tape (TOT) surgery on 85 women with SUI. Pre-operatively and 6 months post-operatively International consultation on Incontinence Questionnaire - Short Form (ICIQ-SF) scores were calculated for all patients to know the severity of incontinence and efficacy of tape.

Results

Mean age, parity, body mass index and mean duration of symptoms were 45.78 years, 2.68, 26.38 kg/m2 and 3.85 years, respectively. SUI was demonstrated in all cases on cough stress test and Bonney's test. Mean operative time, blood loss, post-operative analgesic injections, post- operative stay and post- operative catheterisation were 23.28 min, 45.50 ml, 1.2 injections, 1.2 days and 1.2 days. Various complications noted were excessive bleeding (3.52%), urinary retention (7.05%), urinary urgency (8.23%), urinary tract infection (2.35%), surgical site infection (1.17%), groin pain (28.23%) and mesh exposure (3.52%). At 6 months follow-up, the complete cure rate was 83.52% , partial cure rate was 11.76% and failure rate was found to be 4.70% whereas it was 79.16%, 12.0% and 8.33% respectively at 3 years follow up. 2 patients (2.35%) required burch colposuspension and 12 patients (14.11%) required pelvic floor exercises and duloxetine therapy for their symptoms. Mean pre- operative ICIQ-SF score reduced post- operatively (17.8 ± 4.67 to 2.71 ± 1.42) (p value = 0.001).

Conclusion

Study demonstrates short and long-term efficacy and safety of TOT for surgical management of SUI.

Application of ultra pulse CO2 lattice laser in the treatment of female urinary incontinence

Background

This study aimed to explore the application of CO₂ lattice laser in the treatment of mild and moderate urinary incontinence in female patients.

Methods

We analyzed the clinical data of 33 female patients with mild to moderate urinary incontinence from a prospective cohort study, who were treated with FemiLift CO₂ lattice laser instrument (Alma Laser Ltd, Caesarea, Israel) at our hospital from January 2018 to December 2018. All the female patients were married and fertile, with a mean age of (43.15±6.49) years old (35-62 years old). There were 18 participants with mild urinary incontinence and 15 with moderate urinary incontinence. All participants received laser treatment 3 times, with an interval of 30 days. The International Consultation of Incontinence Questionnaire- Short Form (ICIQ-SF) survey was conducted before the treatment, 3 months after, and 6 months after the treatment. A 1-hour urine pad test was used to quantify the leakage of urine. Residual urine and urine routine examination were performed to exclude other combined diseases.

Results

After 3 times of treatment with FemiLift CO₂ laser, 13 cases were cured in 3 months, and 16 cases were cured in 6 months. 10 cases and 15 cases were significantly improved in 3 or 6 months, respectively. 2 patients had no significant changes, and no adverse reactions were recorded. The pad test showed that the symptom of all 33 patients were significantly improved, and the average scores of ICIQ-SF were significantly decreased (P<0.05) from 12.36 (Grade I) and 15.67 (Grade II) (5-21) before treatment to 3.73(Grade I) and 5.49 (Grade II) (1-12) after 6 months of therapy.

Conclusions

The CO₂ lattice laser is safe and effective in the treatment of mild and moderate urinary incontinences in female patients, which can effectively improve the symptom of urinary leakage without obvious adverse reactions.

Artificial intelligence models derived from 2D transperineal ultrasound images in the clinical diagnosis of stress urinary incontinence

INTRODUCTION AND HYPOTHESIS

The aim of the study was to develop artificial intelligence (AI) algorithms using 2D transperineal ultrasound (TPUS) static images to simplify the clinical process of diagnosing stress urinary incontinence (SUI) in practice.

METHODS

The study involved 400 patients in total, including 265 SUI patients and 135 non-SUI patients who underwent a routine clinical evaluation process by urologists and TPUS. They were classified into different groups based on the International Consultation on Incontinence Questionnaire (ICIQ) to assess the impact of inconvenience on patients' lives. Four AI models were developed by 2D TPUS images: Model A (a single-mode model based on Valsalva maneuver images to classify G-0, G-1, and G-2); Model B (a dual-mode model based on Valsalva maneuver and resting state images to classify G-0, G-1, and G-2); Model C (a single-mode model based on Valsalva maneuver images to classify G-2 and G-01); Model D (a dual-mode model based on Valsalva maneuver and resting state images to classify G-2 and G-01). The performance of the four models was evaluated by confusion matrices and the area under the receiver-operating characteristic curve (AUC).

RESULTS

The dual-mode model based on the Valsalva maneuver and resting-state images (Model D) had a higher accuracy of 86.3% and an AUC of 0.922, which was significantly higher than the AUCs of the other three models: 0.771, 0.862, and 0.827.

CONCLUSIONS

The AI algorithm using 2D TPUS static images of the Valsalva maneuver and resting state may be a promising tool in the diagnosis of SUI patients in to relieve clinical processes in practice given its ease of use in clinical applications.

Post-operative tension adjustment-A simple technical modification in mid-urethral slings (MUS) for stress urinary incontinence (SUI)

INTRODUCTION

Mid-urethral sling (MUS) surgeries have revolutionized the management of stress urinary incontinence (SUI). However, MUS is a delicate balance of tension on the mid urethral segment with a 12 % risk of failure to achieve complete continence; and up-to 20 % chance of post-operative voiding dysfunction. We propose a simple technical modification in which the long ends of the tape at suprapubic or groin area are not cut immediately and are covered with a sterile dressing. After 48-72 h post-surgery the patient is checked for continence and voiding difficulties. Following this an ultrasonographic assessment of post-void residual urine is performed. Keeping in mind these 3 criteria the tape is adjusted. After complete subjective as well as objective satisfaction the long ends of tape are cut.

MATERIAL AND METHODS

This is a retrospective analysis of women who underwent MUS surgery for the management of SUI, with our simple technical modification of tape adjustment in the postoperative period. A total of 17 patients operated by single surgeon in one year were included.

RESULTS

Our results show that 58.8 % of our patients who underwent MUS procedures required post-operative tape adjustment. The number was significantly higher in the MUS - Retropubic group (85.7 %) as compared to the MUS - Obturator group (40 %). Three patients in the MUS - Retropubic group required a second time tape adjustment. Following tape adjustment all patients had complete continence (subjective and objective), with no voiding dysfunction.

CONCLUSION

The incidence of postoperative voiding dysfunction is significant following MUS surgery for SUI. A simple technical modification of delaying the cutting of the tape for two to three days gives the opportunity for perfect tension adjustment.

Autologous Fascial Slings for Surgical Management of Stress Urinary Incontinence: A Come Back

Stress urinary incontinence (SUI) is a common type of urinary incontinence adversely affecting the quality of life of women. For mild SUI, life style changes, pelvic floor exercises and medical treatment with duloxetine may help. Most patients of moderate to severe SUI usually require surgical treatment. Various surgical treatment options include Kelly's plication, Burch colposuspension, bulking agents and sling surgeries. Although, suburethral fascial slings including the autologous rectus fascia slings were in vogue before 1990, they were overtaken by minimally invasive, faster and easier artificial midurethral slings (tension free vaginal tape and transobturator tape). However, observation of serious long-term and life changing complications of synthetic midurethral slings like mesh erosion, chronic pelvic pain and dyspareunia led to their adverse publicity and medico legal implications for the operating surgeons. This led US FDA (Food and Drug Administration) to issue a warning against their use. Currently, their use has significantly decreased in many countries, and they are no longer available in some countries. This has led to renaissance of use of natural autologous fascial sling, especially rectus fascia for surgical management of SUI. Although performing rectus fascia sling surgery is technically more challenging, takes longer, has more short-term morbidity like voiding dysfunction, their long-term success is high with very little risk of serious complications like mesh erosion, chronic pelvic pain and dyspareunia. However, multicentric trials and longer follow ups are needed before it's routine recommendation This review discusses the role of autologous fascial sling (especially rectus fascia) for the surgical management of SUI in the current time and the need of ongoing training of this procedure to gynecology residents and urogynecology fellows.

An unusual late complication with tension-free vaginal tape (TVT): A case report

BACKGROUND

Stress urinary incontinence is a common problem affecting women's quality of life. The retropubic mid-urethral sling accounts for the majority of surgical interventions for stress incontinence. Complications of the procedure are rare. We present an unusual late complication with tension-free vaginal tape (TVT).

CASE

Two years after insertion of a TVT for stress incontinence, a patient noticed a foreign body intermittently exiting through her anus. Initial clinical examinations and investigations were unremarkable. Five years after insertion she represented with faecal matter in the vagina and a TVT erosion. Imaging confirmed a colo-vaginal fistula. She underwent a vaginal excision of the TVT but this did not cure her problem and she subsequently had a laparoscopic sigmoid colectomy. Thereafter she remained well and asymptomatic.

CONCLUSION

This case report describes an unusual late complication. It is likely that the left arm of the mesh entered the serosa of the sigmoid colon and eroded into it over time. Complications associated with TVT are rare, but when they occur they need to be recorded. Only surgeons who have experience and expertise in the procedure should perform it, such as subspecialty trained urogynaecologists.

Cross-sectional Study on Vitamin D Levels in Stress Urinary Incontinence in Women in a Tertiary Referral Center in India

OBJECTIVE

To assess the levels of vitamin D in patients with Stress Urinary Incontinence (SUI) in gynecology clinic of All India Institute of Medical Sciences, New Delhi.

MATERIALS AND METHODS

This is a cross sectional study on a total of 40 women presenting to gynecology outpatient department with stress urinary incontinence diagnosed by history and examination. The women were divided with moderate, severe and very severe SUI confirmed by incontinence severity index (ISI) and pad test. Vitamin D (serum 25 OH D) levels were measured in all cases by electrochemiluminenscene Immunoassay (ECLIA) using Roche Elecsys 2010 and levels of =30 ng/ml were taken as sufficient while levels between 20-30 ng/ml as insufficient and <20 ng/ml as deficient. Statistical analysis was performed using ANOVA test with P value of <0.05 taken as significant.

RESULTS

Mean age of patients was 41.6 years. Mean parity was 2.73 and mean duration of symptoms was 4.14 years. Vitamin D levels ranged between 6-38 ng/ml with mean being 17.15±8.1 ng/ml. Levels were deficient (<20 ng/ml) in 30 (75%) women, insufficient (20-30ng/ml) in 7 (17.5%) women and sufficient (>30ng/ml) in 3 (7.57%) women. There was no significant correlation between severely of SUI and levels of vitamin D with Vit D being 19.18±5.76 ng/ml in moderate SUI, 16.96±9.03 ng/ml in severe SUI and 13.60 ± 2.09 ng/ml in very severe SUI.

CONCLUSION

There was very high prevalence of vitamin D deficiency in SUI patients with 75% patients showing deficient levels and 17.5% showing insufficient levels in SUI patients. There is need to provide vitamin D supplementation in such women.

Microenergy acoustic pulses induced myogenesis of urethral striated muscle stem/progenitor cells

Background

Stress urinary incontinence (SUI) is a common disorder with high prevalence in women across their life span, but there are no non-surgical curative options for the condition. Stem cell-based therapy, especially endogenous stem cell therapy may be a potential treatment method for SUI. The aims of this study are to identify, isolate, and assay the function of urethral striated muscle derived stem/progenitor cells (uMDSCs) and to assess uMDSC response to microenergy acoustic pulses (MAP).

Methods

Urethral striated muscle was identified utilizing 3D imaging of solvent organs (3DISCO) and immunofluorescence (IF). uMDSCs were isolated and purified from Zucker Lean (ZL) (ZUC-LEAN) (ZUC-Leprfa 186) rats, with magnetic-activated cell sorting (MACS) and pre-plating methods. The stemness and differentiation potential of the uMDSCs were measured by cell proliferation, EdU, flow cytometry, IF, and Western blot.

Results

Comparison of the cell proliferation assays between MACS and pre-plating reveals the advantage of MACS over pre-plating. In addition, the study reveals that uMDSCs form myotubes when treated with MAP.

Conclusions

The uMDSCs within female rat urethral striated muscle could be a therapeutic target of MAP in managing SUI.

Female Voiding Dysfunction and Urinary Incontinence

Female voiding dysfunction and incontinence are common in the general population and symptoms have been shown to have a significant negative impact on health-related quality of life. This article highlights the epidemiology, evaluation, diagnosis, pharmacologic therapies, and surgical treatment for overactive bladder, stress urinary incontinence, and urogenital fistulas.

Stress Urinary Incontinence: Comparative Efficacy Trials

Women seeking relief from symptoms of stress urinary incontinence (SUI) may choose from a broad array of treatment options. Therapies range from lifestyle/behavioral modification to surgical interventions, and differ in terms of both effectiveness and risk. Individualized treatment plans can be developed to address a patient's expectations and goals for treatment, as well as her tolerance for potential adverse events. This article reviews the highest-quality clinical trials comparing contemporary treatment options for women with SUI. Clinicians and patients can use this compendium to inform their treatment selection.

Adipose-derived stem cells seeded on polyglycolic acid for the treatment of stress urinary incontinence

PURPOSE

To evaluate the effect and possible mechanism of suburethral tissue-engineered sling in an animal model of stress urinary incontinence (SUI).

METHODS

Adipose-derived stem cells (ADSCs) were obtained from the adipose tissues of rats. The differentiation potential, proliferation, and viability of rat ADSCs were evaluated after infecting these cells with a lentiviral vector-encoding green fluorescent protein (GFP). Next, GFP transfected ADSCs were seeded on polyglycolic acid (PGA) fibers to construct the tissue-engineered sling with the induction of 5-azacytidine (5-Aza). Afterward, the tissue-engineered slings were transplanted into a rat model of SUI that was established by vaginal balloon dilatation method and bilateral ovariectomy. Histology and the leak point pressure measurements were performed at 2 months after tissue-engineered sling implantation.

RESULTS

The ADSCs were found to be efficiently transfected with GFP, without any effects on proliferation, cell cycle and multi-differentiation potential. After been seeded on PGA fibers, ADSCs formed tissue-engineered slings in 4 weeks of induction culture. Two months after implantation, the mean leak point pressure (LPP) was significantly increased in sling-treated rats compared with the balloon-injured ovariectomized rats. Immunofluorescence assay showed that some of the GFP expressing cells stained positive for muscle-specific markers.

CONCLUSIONS

The newly suburethral tissue-engineered sling restores LPP in the rat model of SUI, which could be an effective treatment in future SUI therapy.

A comparison between adjustable single-incision sling and tension-free vaginal tape-obturator in treating stress urinary incontinence

PURPOSE

To compare the subjective and objective cure rates, postoperative pain, postoperative complications, and postoperative quality of life of adjustable single-incision sling (Ajust®) versus tension-free vaginal tape-obturator (TVT-O™) in the treatment of female stress urinary incontinence (SUI).

METHODS

Female patients with SUI (N = 368) were randomized to receive either Ajust® (N = 184) or TVT-O™ procedure (N = 184) between January 2012 and October 2013. Efficacy was evaluated using cure rate, postoperative complications, postoperative pain profile (using Visual Analogue Scale), Patient Global Impression of Improvement Scale, and International Consultation on Incontinence Questionnaire-Short Form.

RESULTS

The patients from Ajust® and TVT-O™ groups had no statistically significant difference in subjective and objective cure rates (94.4 vs 90.7 %, P = 0.171; 97.2 vs 90.7 %, P = 0.195). Compared with the TVT-O™ group, patients in the Ajust® group had significantly less postoperative pain, shorter operative duration, and less intraoperative blood loss (all P values < 0.05). No significant difference in perioperative complications was observed between these two groups. Patients in Ajust® group had shorter recovery time (P < 0.001) compared to TVT-O™ group. The postoperative quality of life of patients in these two groups was significantly improved compared to baseline; however, no significant difference was observed in the average improvement of life between these two groups (P = 0.115).

CONCLUSIONS

Ajust® procedure is simple, safe, and effective for the treatment of SUI. Compared with TVT-O™, patients receiving Ajust® had less intraoperative blood loss, less postoperative pain, and shorter recovery time.

Urethral bulking agents versus other surgical procedures for the treatment of female stress urinary incontinence: a systematic review and meta-analysis

Bulking agents provide an alternative option in the management of women with stress urinary incontinence and they seem to have an important role in the management flow chart of SUI. However, evidence on this issue is scanty. The most important aspect is to understand whether bulking agents are comparable with the other first-line anti-incontinence surgical procedure (MUS, Burch colposuspension and pubovaginal slings). Hence, the primary aim of the current review was to assess the objective and subjective outcomes of bulking agents in comparison with the other surgical procedures for the treatment of SUI. PubMed and Medline were systematically searched and we included studies evaluating the use of bulking agents in comparison with other surgical approaches for either primary or recurrent treatment of female SUI. Three studies meeting the inclusion criteria were identified. Two of these studies were RCTs evaluating the use of bulking agents versus other surgical procedures for the treatment of primary female SUI; the remnant article was a retrospective cohort study that compared the effectiveness and safety of repeat midurethral sling with urethral bulking after failed midurethral sling. The combined results of all analyses showed that the objective recurrence rate of peri- or trans-urethral injections is significantly higher in comparison with the other surgical procedures. Similar findings were observed when considering separately the treatment for primary or recurrent SUI. Furthermore, lower subjective recurrence rate was observed among patients undergoing other surgical treatment in comparison with those undergoing bulking agents; however, this trend was not statistically significant. Moreover, patients undergoing injection of bulking agents experienced a lower rate of voiding dysfunctions in comparison to the control group. According to current evidence, bulking agents should not be proposed as first-line treatment in those women seeking permanent cure for both primary and recurrent SUI. However, the effectiveness of a procedure should be balanced with its invasiveness and patients' expectations. Bulking agents are a minimally invasive approach to treat SUI and their use should be considered as an alternative strategy particularly in special conditions: patients who are fragile, in those who do not wish to have surgery, or in whom surgical options are restricted (postoperatively, after irradiation).

The effect of urine-derived stem cells expressing VEGF loaded in collagen hydrogels on myogenesis and innervation following after subcutaneous implantation in nude mice

Impairment of sphincter muscles or their neural and vascular support leads to stress urinary incontinence. The aim of this study was to determine the role of urine-derived stem cells (USCs) over-expressing vascular endothelial growth factor (VEGF) in collagen-I gel on angiogenesis, cell survival, cell growth, myogenic phenotype differentiation of the implanted cells and innervations following implantation in vivo. USCs were infected with adenovirus containing the human VEGF165 and green fluorescent protein genes. A total of 5 × 10(6) cells, USCs alone, or plus endothelial cells or human skeletal myoblasts (as control) suspended in collagen-I gel were subcutaneously implanted into nude mice. Extensive vascularization and more implanted cells was noted in VEGF-expressing USCs groups compared to the non-VEGF groups in vivo. Numbers of the cells displaying endothelial markers (CD 31 and von Willebrand's factor) and myogenic markers (myf-5, MyoD and desmin), and regenerated nerve fibers displaying neural markers (S-100, GFAP and neurofilament) significantly increased in the grafts of VEGF-expressing USCs. Improved angiogenesis by VEGF-expressing USCs enhanced grafted cell survival, recruited the resident cells and promoted myogenic phenotype differentiation of USCs and innervation. This approach has important clinical implications for the development of cell therapies for the correction of stress urinary incontinence.