A randomized comparison of a single-incision needleless (Contasure-needleless®) mini-sling versus an inside-out transobturator (Contasure-KIM®) mid-urethral sling in women with stress urinary incontinence: 24-month follow-up results

Instruments Used for the Assessment of SUI Severity in Urogynecologic Surgical Trials: A Scoping Review

INTRODUCTION AND HYPOTHESIS

Various instruments are used to evaluate the severity of stress urinary incontinence (SUI) in clinical trials for SUI surgery. We conducted a scoping review with the primary aim of investigating the use of such instruments.

METHODS

A comprehensive search in PubMed/MEDLINE, Cochrane Library, ClinicalTrials.gov, and WHO ICTRP was carried out. Inclusion criteria were studies including patients undergoing surgical intervention for SUI with assessment of SUI severity performed pre- and post-operatively. Exclusion criteria were nonprospective studies, nonrandomized studies, studies not in the English language, and the absence of reporting the methods of SUI severity evaluation in the study.

RESULTS

In total, 8,886 articles were identified, yielding 100 papers for data extraction. The most frequent interventions were mid-urethral slings (85 studies), Burch colposuspension (10 studies), and the use of bulking agents (3 studies). The most frequently used instruments for objective evaluation of SUI were urodynamics (90 studies), nonvalidated cough stress test (83 studies), and 1-h pad test (28 studies). The most frequently used instruments for subjective evaluation were bladder diary (37 studies), Incontinence Impact Questionnaire-7 (26 studies), and Urinary Distress Inventory-6 (23 studies). There were three studies reporting results according to the severity of pre- and post-operative SUI.

CONCLUSIONS

There is significant heterogeneity regarding the instruments used to evaluate the severity of SUI in surgical trials for female incontinence. There is a paucity of data regarding results according to the pre-operative severity of SUI. Hence, commonly agreed standardized methods for the assessment of SUI severity are needed to improve comparability between clinical trials for SUI surgery.

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). This study aimed 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 randomized 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 form, Female Sexual Function Index and Prolapse Quality of Life Questionnaire form, postoperative day 1 visual analog scale 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, whereas 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 = .633) or subjective success (85% vs 75%, p = .695) between the 2 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, although this improvement was significant in the SIMS group, it was not significant in the LBC group. In addition, surgery time, catheterization time, and hospitalization time were shorter in the SIMS group than in the LBC group. The visual analog scale score on postoperative day 1 was lower in the SIMS group. Groups were not different in terms of preoperative and postoperative complications.

CONCLUSION

This preliminary study is the first randomized study that 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.

Long-Term Outcomes of the Altis® Single-Incision Sling: Up to 10 Years' Follow-up

INTRODUCTION AND HYPOTHESIS

Single-incision slings (SIS) have emerged as a less invasive alternative to conventional slings for stress urinary incontinence (SUI) treatment. However, long-term efficacy and safety results remain uncertain owing to a lack of studies.

MATERIAL AND METHODS

A retrospective review of 155 patients treated with Altis® for SUI between February 2012 and June 2017, held in 2022, as a continuation of a prospective study in which all patients (197) were reviewed for 2 years after surgery (1, 6, 12, and 24 months). Preoperative demographic data, comorbidities, and pressure-flow studies were also recorded. Continence status and satisfaction rates were assessed using the International Consultation on Incontinence Questionnaire-short form (ICIQ-SF) and the Patient Global Impression of Improvement (PGI-I) respectively. The assessment in the 2022 retrospective review was performed via a telephone survey.

RESULTS

Mean follow-up time after surgery was 85.3 months (82.5-88.1). In 2022, complete continence was present in 75.4% of the patients. The presence of urinary urgency conditioned the ICIQ-SF score (10.9 vs 1.7 points, p < 0.01), with the ICIQ-SF = 0 in 84.5% of the patients with no associated urgency. Satisfaction assessed by the PGI-I was high, with 84.6% of the patients showing improvement. De novo urgency was present in 37,9% of the patients by 2022. Urinary tract infections were the most frequent complication (9.7%), with only 5 documented cases of mesh erosion.

CONCLUSIONS

Altis® SIS is a safe and effective device for SUI treatment, with satisfaction rates comparable with those of the conventional slings. Persistence or development of urinary urgency influences the results.

Quality of life and anxiety 12 and 36 months after surgical SUI treatment in postmenopausal women

BACKGROUND

Stress urinary incontinence (SUI) is a common condition that affects a significant group of postmenopausal women, lowering quality of life, leading to embarrassment, social isolation, and decreased physical activity. SUI can be treated with medication, behavioral changes, pelvic floor muscle exercises, or surgical intervention. This study aimed to assess the changes in quality of life, acceptance of illness, and impact on physical activity, in patients after the transobturator tape (TOT) procedure following long-term assessment.

MATERIAL AND METHODS

Forty-five women aged 71.52 ± 4.12 years took part in our follow-up project at 12 and 36 months after surgical intervention. The World Health Organization Quality of Life Questionnaire (WHOQOL-BREF), Acceptance of Illness Scale Questionnaire (AIS), and International Physical Activity Questionnaire (IPAQ) were used in the study.

RESULTS

At 36 months after surgery, SUI using TOT showed a significant improvement in health acceptance. Also, there was a number of patients who reported a high level of acceptance according to the AIS.

CONCLUSION

Elderly women with SUI, after treatment by TOT, showed a significant improvement in health acceptance 3 years after the procedure.

Safety and Efficacy Report for the Use of Poly-4-Hydroxybutyrate as a Retropubic Mid-Urethral Sling (MUS) for Stress Urinary Incontinence: A Prospective 24 Months Follow-Up of New Poly-4-Hydroxybutyrate TephaFlex SUI Bioresorbable MUS

STUDY OBJECTIVE

To investigate the feasibility and safety of the retropubic mid-urethral sling (MUS) procedure with a resorbable mesh implant made of poly-4-hydroxybutyrate (P4HB).

DESIGN

A prospective clinical cohort study with 24 months follow-up.

SETTING

A tertiary academic hospital.

PATIENTS

Seventeen women with moderate to severe stress urinary incontinence (SUI).

INTERVENTIONS

A retropubic MUS procedure with P4HB sling.

MEASUREMENTS AND MAIN RESULTS

Seventeen women underwent an uncomplicated MUS procedure with a new sling made of resorbable P4HB. Following safety criteria, there has been no need to stop the study before 24 months' end point. Three serious adverse events were reported during follow-up: (1) inability to void urine after 1 week postsurgery, (2) a hysterectomy and bilateral oophorectomy performed due to a precancerous endometrial lesion at 16 months after initial MUS procedure and (3) exposed mesh with a part of device sheath left behind. These participants underwent an uncomplicated reintervention with no additional and/or permanent harm. Reinterventions because of failure of cure contained 3 second MUS procedures and one admission of urethral bulking agent. Seventy-six percent and 47 percent of patients were objectively cured of SUI at 12 and 24 months, respectively.

CONCLUSIONS

Preliminary evidence suggests that a sling made of P4HB can be safely used for MUS procedures and could be an alternative for permanent polypropylene slings in patients that prefer the use of nonpermanent material.

Long-term outcomes of surgical interventions for stress urinary incontinence: a systematic review and network meta-analysis

BACKGROUND

Stress urinary incontinence is common among women, and surgical interventions have significantly improved patients' symptoms. The long-term effectiveness of these surgeries is increasingly drawing attention, yet it remains sparsely documented in the literature.

OBJECTIVE

To compare the long-term effectiveness and safety of retropubic tension-free vaginal tape (TVT-RP), tension-free vaginal tape-obturator (TVT-O), transobturator tape (TOT), single-incision sling (SIS), Burch colposuspension, and pubovaginal sling (PVS).

METHODS

A comprehensive and systematic literature review was conducted in PubMed, EMBASE, MEDLINE, Cochrane Library, Medicine, and clinicaltrials.gov from inception to May 2023. Selected trials were evaluated for potential bias using the Cochrane tool. Treatment modalities were compared using network meta-analysis to assess objective success rate, subjective success rate, and complications as outcomes.

RESULTS

A total of 37 studies involving 5720 patients were included. No significant statistical differences were found among the interventions regarding objective success rate. PVS had the highest surface under the cumulative ranking curve SUCRA value (93.1). For subjective success rate, TVT-RP, TVT-O, and PVS demonstrated superiority over SIS, with PVS having the highest SUCRA value (80.1). SIS had lower overall complication and pain rates compared to other methods, with statistical significance. There were no differences in reoperation rate, exposure rate, and urinary tract infection occurrence among the surgical approaches.

CONCLUSIONS

In terms of long-term effectiveness and safety, TVT-RP and TVT-O appear to be the preferred options for patients opting for synthetic slings, while for patients seeking nonsynthetic slings, PVS may represent the optimal choice.

Complications of Synthetic Midurethral Slings: Is There a Relevant Discrepancy Between Observational Data and Clinical Trials?

CONTEXT

The complications of synthetic midurethral slings (MUSs) in women with stress urinary incontinence (SUI) have become a globally debated issue.

OBJECTIVE

To systematically review the short- and long-term complications of mesh slings reported in observational data compared with clinical trial data, to determine whether the complication rates from clinical trials reflects "real-world" observational data.

EVIDENCE ACQUISITION

PubMed and Cochrane Library were searched. Methods as detailed in Preferred Reporting Items for Systematic Reviews and Meta-analyses and Cochrane Handbook for Systematic Reviews of Interventions were followed.

EVIDENCE SYNTHESIS

Thirty registries/databases including 709 335 MUS procedures (1-22 yr of follow-up) were identified. MUS procedures were associated with intraoperative bladder perforation in 0.86-3.6%, urethral perforation in 0-0.1%, vascular injury in 0.04-0.1%, voiding lower urinary tract symptoms (LUTS) in 1.47-3.5%, vaginal exposure in 0.2-1.9%, and reoperation in up to 9% of cases. Forty-three randomised clinical trials were identified, including 6284 women who underwent MUS procedures and 2177 women who underwent other interventions (1-10 yr of follow-up). MUS procedures were associated with urinary tract perforation in 2.58%, vaginal injury in 1.43%, de novo voiding LUTS in 4.37%, de novo storage LUTS in 5.41%, mesh extrusion/exposure (vaginal/urinary tract) in 2.54%, dyspareunia in 2.26%, pain (pelvic/suprapubic/perineal) in 2.83%, and reoperation for complications required in 1.82% of cases. Meta-analyses of the randomised controlled trials revealed that retropubic MUSs were associated with more events of urinary tract perforation (risk ratio [RR] 9.81, 95% confidence interval [CI] 5.05-19.04, high certainty of evidence [COE]) and voiding LUTS (RR 1.57, 95% CI 1.19-2.07, high COE) than transobturator MUSs. MUSs were associated with more events of pain than mini-slings (RR 1.72, 95% CI 1.04-2.87, moderate COE).

CONCLUSIONS

Short- and long-term data on complications of polypropylene mesh used for female SUI are fairly comparable when using outcome data from well-designed clinical trials or from less structured prospective or retrospective registries. Comparisons have to be made with caution since the two systems of data collection are inherently incomparable. This knowledge should be incorporated in the discussion on how to implement polypropylene mesh for female stress incontinence.

PATIENT SUMMARY

In order to know whether mesh tapes used for treating stress incontinence work well and are safe, high-quality information is important. It appears that well-designed clinical studies give similar results to large registration databases. These data should be interpreted with caution in view of the different ways the information was collected. These results will help physicians and patients understand the risks of mesh tapes.

Single-incision sling operations for urinary incontinence in women

BACKGROUND

Stress urinary incontinence imposes a significant health and economic burden on individuals and society. Single-incision slings are a minimally-invasive treatment option for stress urinary incontinence. They involve passing a short synthetic device through the anterior vaginal wall to support the mid-urethra. The use of polypropylene mesh in urogynaecology, including mid-urethral slings, is restricted in many countries. This is a review update (previous search date 2012).

OBJECTIVES

To assess the effects of single-incision sling operations for treating urinary incontinence in women, and to summarise the principal findings of relevant economic evaluations.

SEARCH METHODS

We searched the Cochrane Incontinence Specialised Register, which contains trials identified from: CENTRAL, MEDLINE, MEDLINE In-Process, MEDLINE Epub Ahead of Print, and two trials registers. We handsearched journals, conference proceedings, and reference lists of relevant articles to 20 September 2022.

SELECTION CRITERIA

We included randomised or quasi-randomised controlled trials in women with stress (or stress-predominant mixed) urinary incontinence in which at least one, but not all, trial arms included a single-incision sling.

DATA COLLECTION AND ANALYSIS

We used standard Cochrane methodological procedures. The primary outcome was subjective cure or improvement of urinary incontinence.

MAIN RESULTS

We included 62 studies with a total of 8051 women in this review. We did not identify any studies comparing single-incision slings to no treatment, conservative treatment, colposuspension, or laparoscopic procedures. We assessed most studies as being at low or unclear risk of bias, with five studies at high risk of bias for outcome assessment. Sixteen trials used TVT-Secur, a single-incision sling withdrawn from the market in 2013. The primary analysis in this review excludes trials using TVT-Secur. We report separate analyses for these trials, which did not substantially alter the effect estimates. We identified two cost-effectiveness analyses and one cost-minimisation analysis. Single-incision sling versus autologous fascial sling One study (70 women) compared single-incision slings to autologous fascial slings. It is uncertain if single-incision slings have any effect on risk of dyspareunia (painful sex) or mesh exposure, extrusion or erosion compared with autologous fascial slings. Subjective cure or improvement of urinary incontinence at 12 months, patient-reported pain at 24 months or longer, number of women with urinary retention, quality of life at 12 months and the number of women requiring repeat continence surgery or sling revision were not reported for this comparison. Single-incision sling versus retropubic sling Ten studies compared single-incision slings to retropubic slings. There may be little to no difference between single-incision slings and retropubic slings in subjective cure or improvement of incontinence at 12 months (risk ratio (RR) 0.99, 95% confidence interval (CI) 0.91 to 1.07; 2 trials, 297 women; low-certainty evidence). It is uncertain whether single-incision slings increase the risk of mesh exposure, extrusion or erosion compared with retropubic minimally-invasive slings; the wide confidence interval is consistent with both benefit and harm (RR 1.55, 95% CI 0.24 to 9.82; 3 trials, 267 women; low-certainty evidence). It is uncertain whether single-incision slings lead to fewer women having postoperative urinary retention compared with retropubic slings; the wide confidence interval is consistent with possible benefit and harm (RR 0.47, 95% CI 0.12 to 1.84; 2 trials, 209 women; low-certainty evidence). The effect of single-incision slings on the risk of repeat continence surgery or mesh revision compared with retropubic slings is uncertain (RR 4.19, 95% CI 0.31 to 57.28; 2 trials, 182 women; very low-certainty evidence). One study reported quality of life, but not in a suitable format for analysis. Patient-reported pain at more than 24 months and the number of women with dyspareunia were not reported for this comparison. We downgraded the evidence due to concerns about risks of bias, imprecision and inconsistency. Single-incision sling versus transobturator sling Fifty-one studies compared single-incision slings to transobturator slings. The evidence ranged from high to low certainty. There is no evidence of a difference in subjective cure or improvement of incontinence at 12 months when comparing single-incision slings with transobturator slings (RR 1.00, 95% CI 0.97 to 1.03; 17 trials, 2359 women; high-certainty evidence). Single-incision slings probably have a reduced risk of patient-reported pain at 24 months post-surgery compared with transobturator slings (RR 0.12, 95% CI 0.02 to 0.68; 2 trials, 250 women; moderate-certainty evidence). The effect of single-incision slings on the risk of dyspareunia is uncertain compared with transobturator slings, as the wide confidence interval is consistent with possible benefit and possible harm (RR 0.78, 95% CI 0.41 to 1.48; 8 trials, 810 women; moderate-certainty evidence). There are a similar number of mesh exposures, extrusions or erosions with single-incision slings compared with transobturator slings (RR 0.61, 95% CI 0.39 to 0.96; 16 trials, 2378 women; high-certainty evidence). Single-incision slings probably result in similar or reduced cases of postoperative urinary retention compared with transobturator slings (RR 0.68, 95% CI 0.47 to 0.97; 23 trials, 2891 women; moderate-certainty evidence). Women with single-incision slings may have lower quality of life at 12 months compared to transobturator slings (standardised mean difference (SMD) 0.24, 95% CI 0.09 to 0.39; 8 trials, 698 women; low-certainty evidence). It is unclear whether single-incision slings lead to slightly more women requiring repeat continence surgery or mesh revision compared with transobturator slings (95% CI consistent with possible benefit and harm; RR 1.42, 95% CI 0.94 to 2.16; 13 trials, 1460 women; low-certainty evidence). We downgraded the evidence due to indirectness, imprecision and risks of bias.

AUTHORS' CONCLUSIONS

Single-incision sling operations have been extensively researched in randomised controlled trials. They may be as effective as retropubic slings and are as effective as transobturator slings for subjective cure or improvement of stress urinary incontinence at 12 months. It is uncertain if single-incision slings lead to better or worse rates of subjective cure or improvement compared with autologous fascial slings. There are still uncertainties regarding adverse events and longer-term outcomes. Therefore, longer-term data are needed to clarify the safety and long-term effectiveness of single-incision slings compared to other mid-urethral slings.

Efficacy of minimally invasive pectopexy with concomitant I-stop-mini sling for women with pelvic organ prolapse and overt stress urinary incontinence: A retrospective cohort study

OBJECTIVE

To compare the efficacy of minimally invasive pectopexy with I-stop-mini (MPI) and minimally invasive sacrocolpopexy with Obtryx (MSO).

METHODS

Women with pelvic organ prolapse quantification (POP-Q) stage III or more and overt stress urinary incontinence from May 2018 to May 2021 were included. Patients with meshes fixed on the cervix or vaginal vault and bilateral pectineal ligament with I-stop-mini were classified into the MPI group, while those fixed on the apex and sacral promontory with Obtryx were classified into the MSO group. The primary outcomes were 1-year-postoperative POP-Q stage, patient-reported urinary and prolapse outcomes (Urogenital Distress Inventory-6, International Consultation on Incontinence Questionnaire-Short Form, and Pelvic Organ Prolapse Distress Inventory-6), 1-h pad test, and sexual life quality (Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire). Secondary outcomes included operative data and adverse events.

RESULTS

The efficacy of MPI was similar to that of MSO according to the primary outcomes. MPI had shorter operative times (133.4 ± 30.6 min versus 199.3 ± 20.9 min, P = 0.001) and lower incidence rate of abdominal pain (0% vs 20%, P = 0.02) and groin pain (8% vs 40%, P = 0.01) than MSO.

CONCLUSIONS

MPI showed similar efficacy to MSO, but demonstrated shorter operative times and lower incidence rates of abdominal and groin pain.

Single Incision Mini-Sling Versus Mid-Urethral Sling (Transobturator/Retropubic) in Females With Stress Urinary Incontinence: A Systematic Review and Meta-Analysis

Stress urine incontinence (SUI) is most common in middle-aged women and the second most common in those over 75. SUI causes significant discomfort and suffering for patients and has a considerable financial impact on the healthcare system. Conservative approaches are recommended as the first step in treatment. However, surgery is often necessary to improve a patient's quality of life due to the high failure rate of conservative treatments. A thorough literature review of studies published before March 2023 was conducted on the safety and effectiveness of single-incision mini slings (SIMS) and standard mid-urethral slings (MUS). PubMed, Embase, Cochrane Library, and Elsevier's ScienceDirect were used to retrieve the studies. Two reviewers independently searched and evaluated the data based on inclusion and exclusion criteria. Review Manager 5.4 software was used for meta-analysis. Included were seventeen studies involving 3,503 female SUI patients without intrinsic sphincter deficiency (ISD) or mixed urinary incontinence. According to the results of our meta-analysis, the clinical efficacy of SIMS is comparable to that of MUS in terms of objective cure rate (RR: 0.99; 95% CI: 0.95 to 1.03, p: 0.66, I2: 29%). In contrast, it increases the post-procedure International Consultation on Incontinence Questionnaire (ICIQ) score (WMD: 0.08; 95% CI: -0.08 to 0.08). CI: -0.02 to 0.18, p: 0.11, I2: 55%) and improves the PGI-I score to a greater extent (RR: 1.04; 95% CI: 0.96 to 1.08, p: 0.36, I2: 76%). In contrast, there is no difference between the two groups regarding patient satisfaction (RR: 0.96; 95% CI: 0.92 to 1.01, p: 0.16, I2: 0%) and Sandvik score reduction (RR: 0.98; 95% CI: 0.94 to 1.02, p: 0.35, I2: 0%). In conclusion, single-incision mid-urethral slings (SIMS) are as effective as mid-urethral slings (MUS) for treating pure stress urinary incontinence (SUI) without intrinsic sphincter deficiency (ISD), with a shorter operation time. However, the SIMS procedure has a higher incidence of dyspareunia. At the same time, bladder perforation, mesh-related complications, pelvic/groin pain, urinary tract infection (UTI), worsening urgency, dysuria, and pain score are less likely to occur with SIMS. Only the decrease in pelvic/groin pain was statistically significant.

Urinary Incontinence and Pelvic Organ Prolapse in Women

BACKGROUND

Pelvic floor disorders are common, especially in pregnancy and after delivery, in the postmenopausal period, and old age, and they can significantly impact on the patient's quality of life.

METHODS

This narrative review is based on publications retrieved by a selective search of the literature, with special consideration to original articles and AWMF guidelines.

RESULTS

Pelvic floor physiotherapy (evidence level [EL] 1), the use of pessaries (EL2), and local estrogen therapy can help alleviate stress/urge urinary incontinence and other symptoms of urogenital prolapse. Physiotherapy can reduce urinary incontinence by 62% during pregnancy and by 29% 3-6 months post partum. Anticholinergic and β-sympathomimetic drugs are indicated for the treatment of an overactive bladder with or without urinary urge incontinence (EL1). For patients with stress urinary incontinence, selective serotonin-noradrenaline reuptake inhibitors can be prescribed (EL1). The tension-free tape is the current standard of surgical treatment (EL1); in an observational follow-up study, 87.2% of patients were satisfied with the outcome 17 years after surgery. Fascial reconstruction techniques are indicated for the treatment of primary pelvic organ prolapse, and mesh-based surgical procedures for recurrences and severe prolapse (EL1).

CONCLUSION

Urogynecological symptoms should be specifically asked about by physicians of all relevant specialties; if present, they should be treated conservatively at first. Structured surgical techniques with and without mesh are available for the treatment of urinary incontinence and pelvic organ prolapse. Preventive measures against pelvic floor dysfunction should be offered during pregnancy and post partum.

Safety and Efficacy of Single Incision Sling Versus Midurethral Sling in the Treatment of Stress Urinary Incontinence: A Randomized Controlled Trial

IMPORTANCE

This study compares the long-term efficacy and safety of an innovative single-incision sling (SIS) with the inside-out transobturator tape (TOT) sling in the treatment of female stress urinary incontinence.

OBJECTIVES

Women with urodynamic stress urinary incontinence were randomized to either SIS or TOT groups and followed up for 4 years. The primary outcome was objective cure defined with a negative cough stress test result. Secondary outcomes involved subjective cure reported via patient's satisfaction scale, surgery complications, postoperative de novo urgency, and patient's life quality.

STUDY DESIGN

This is a randomized noninferiority controlled trial.

RESULTS

A total of 168 women were randomized (84 in both groups). After 4-year follow-up, 130 patients were analyzed (66 in the SIS group and 64 in the TOT group). The objective (86.4% vs 84.4%; risk difference [95% confidence interval], 0.020 [-0.101 to 0.141]; P = 0.807) and subjective cure rates (83.3% vs 81.3%; risk difference [95% confidence interval], 0.020 [-0.111 to 0.151]; P = 0.821) were similar with the SIS and TOT groups. Both procedures were associated with low complication rates. Repeated surgery rates were 7.6% in the SIS group and 6.3% in the TOT groups. The mesh exposure rate was 1.5% for the SIS group and 3.1% for the TOT group. Incidence of de novo urgency did not vary between TOT and SIS patients. Both groups registered significant life quality improvement.

CONCLUSION

After long-term follow-up, anti-incontinence SIS surgery proved noninferior to the inside-out TOT procedure in terms of objective and subjective cure rates.

Efficacy of the new adjustable I-stop-mini sling system in women with stress urinary incontinence and intrinsic sphincter deficiency: A retrospective cohort study

OBJECTIVE

We aimed to evaluate the efficacy, surgical outcomes, and adverse events of the adjustable midurethral sling I-stop-mini in women with intrinsic sphincter deficiency (ISD)-type stress urinary incontinence. We compared this new sling system with the Obtryx transobturator midurethral sling system.

METHODS

This retrospective cohort study was conducted at a single center from June 2017 to December 2020. A total of 141 women who underwent placement of an I-stop-mini or Obtryx and were followed up for at least 1 year were enrolled. ISD was defined as a Valsalva leak point pressure of ≤60 cmH₂ O or a maximal urethral closure pressure of ≤20 cmH₂ O. Student t test was used to compare continuous variables, and chi-square test was used to compare the distribution of categorical data.

RESULTS

In terms of objective success, I-stop-mini and Obtryx showed no significant differences in the postoperative 1-month, 6-month, and 12-month. The two devices showed similar effectiveness regardless of the ISD definition. The I-stop-mini group had a significantly shorter operative time, whereas the adverse event rates were similar.

CONCLUSION

The subjective cure rate, objective success, and adverse event rate did not differ in the two devices. I-stop-mini had a significantly shorter operative time.

Single-incision mini-slings versus standard synthetic mid-urethral slings for surgical treatment of stress urinary incontinence in women: The SIMS RCT

BACKGROUND

Stress urinary incontinence is the most common type of urinary incontinence in premenopausal women. Until recently, synthetic mid-urethral slings (mesh/tape) were the standard surgical treatment, if conservative management failed. Adjustable anchored single-incision mini-slings are newer, use less mesh and may reduce perioperative morbidity, but it is unclear how their success rates and safety compare with those of standard tension-free mid-urethral slings.

OBJECTIVE

The objective was to compare tension-free standard mid-urethral slings with adjustable anchored single-incision mini-slings among women with stress urinary incontinence requiring surgical intervention, in terms of patient-reported effectiveness, health-related quality of life, safety and cost-effectiveness.

DESIGN

This was a pragmatic non-inferiority randomised controlled trial. Allocation was by remote web-based randomisation (1 : 1 ratio).

SETTING

The trial was set in 21 UK hospitals.

PARTICIPANTS

Participants were women aged ≥ 18 years with predominant stress urinary incontinence, undergoing a mid-urethral sling procedure.

INTERVENTIONS

Single-incision mini-slings, compared with standard mid-urethral slings.

MAIN OUTCOME MEASURES

The primary outcome was patient-reported success rates on the Patient Global Impression of Improvement scale at 15 months post randomisation (≈ 1 year post surgery), with success defined as outcomes of 'very much improved' or 'much improved'. The primary economic outcome was incremental cost per quality-adjusted life-year gained. Secondary outcomes were adverse events, impact on other urinary symptoms, quality of life and sexual function.

RESULTS

A total of 600 participants were randomised. At 15 months post randomisation, adjustable anchored single-incision mini-slings were non-inferior to tension-free standard mid-urethral slings at the 10% margin for the primary outcome [single-incision mini-sling 79% (212/268) vs. standard mid-urethral sling 76% (189/250), risk difference 4.6, 95% confidence interval -2.7 to 11.8; p non-inferiority < 0.001]. Similarly, at 3 years' follow-up, patient-reported success rates in the single-incision mini-sling group were non-inferior to those of the standard mid-urethral sling group at the 10% margin [single-incision mini-sling 72% (177/246) vs. standard mid-urethral sling 67% (157/235), risk difference 5.7, 95% confidence interval -1.3 to 12.8; p non-inferiority < 0.001]. Tape/mesh exposure rates were higher for single-incision mini-sling participants, with 3.3% (9/276) [compared with 1.9% (5/261) in the standard mid-urethral sling group] reporting tape exposure over the 3 years of follow-up. The rate of groin/thigh pain was slightly higher in the single-incision mini-sling group at 15 months [single-incision mini-sling 15% (41/276) vs. standard mid-urethral sling 12% (31/261), risk difference 3.0%, 95% confidence interval -1.1% to 7.1%]; however, by 3 years, the rate of pain was slightly higher among the standard mid-urethral sling participants [single-incision mini-sling 14% (39/276) vs. standard mid-urethral sling 15% (39/261), risk difference -0.8, 95% confidence interval -4.1 to 2.5]. At the 3-year follow-up, quality of life and sexual function outcomes were similar in both groups: for the International Consultation on Incontinence Questionnaire Lower Urinary Tract Symptoms Quality of Life, the mean difference in scores was -1.1 (95% confidence interval -3.1 to 0.8; p = 0.24), and for the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire, International Urogynecological Association-Revised, it was 0 (95% confidence interval -0.1, 0.1; p = 0.92). However, more women in the single-incision mini-sling group reported dyspareunia [12% (17/145), compared with 4.8% (7/145) in the standard mid-urethral sling group, risk difference 7.0%, 95% confidence interval 1.9% to 12.1%]. The base-case economics results showed no difference in costs (-£6, 95% confidence interval -£228 to £208) or quality-adjusted life-years (0.005, 95% confidence interval -0.068 to 0.073) between the groups. There is a 56% probability that single-incision mini-slings will be considered cost-effective at the £20,000 willingness-to-pay threshold value for a quality-adjusted life-year.

LIMITATIONS

Follow-up data beyond 3 years post randomisation are not available to inform longer-term safety and cost-effectiveness.

CONCLUSIONS

Single-incision mini-slings were non-inferior to standard mid-urethral slings in patient-reported success rates at up to 3 years' follow-up.

FUTURE WORK

Success rates, adverse events, retreatment rates, symptoms, and quality-of-life scores at 10 years' follow-up will help inform long-term effectiveness.

TRIAL REGISTRATION

This trial was registered as ISRCTN93264234.

FUNDING

This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 26, No. 47. See the NIHR Journals Library website for further project information.

Efficacy and Safety of "I-stop-mini adjustable" Sling System Versus Transobturator Midurethral "Obtryx" Sling System in Stress Urinary Incontinence: A Retrospective Cohort Study

STUDY OBJECTIVE

To compare the safety, efficacy, and adverse events of the new mini-adjustable sling system "I-stop-mini" with transobturator midurethral slings "Obtryx" in women with stress urinary incontinence (SUI).

DESIGN

A single-center, retrospective cohort study.

SETTING

Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taiwan, Patients: Three hundred and forty-seven patients who underwent I-stop-mini or Obtryx for SUI treatment.

INTERVENTION

Mid-urethral sling with either I-stop-mini or Obtryx.

MEASUREMENTS AND MAIN RESULTS

The primary outcomes were objective success and subjective cure rates between the two groups. Objective success was evaluated using a one-hour pad test and subjective cure was evaluated using a questionnaire score (IIQ-7, UDI-6, ICIQ-SF). Secondary outcomes were the evaluation of surgical outcomes, operative data, and adverse events between the two groups. In total, 171 of 200 I-stop-mini subjects and 127 of 147 Obtryx subjects completed 12 months of follow-up. Regarding the objective success between the I-stop-mini group and the Obtryx group, 1 month postoperative (3.6±5.2 vs. 3.9±12.6; p = .765), post-operative 6 month (3.9±5.1 vs. 4.2±12.6; p = .848), 12 month (4.6±5.6 vs. 4.5±13.6; p = .980) one-hour pad tests showed no significant difference. The 12-month subjective cure rates decreased from 94.7% (1 month post-operative) to 91.2% (12 months post-operative) in the I-stop-mini group and 95.2% (1 month post-operative) to 85.0% (12 months post-operative) in the Obtryx group. Similar and durable efficacy was observed between the two groups. The I-stop-mini group had shorter operative times and hospital stays than the Obtryx group; however, both groups showed similar adverse event rates.

CONCLUSION

The objective success and subjective cure rates of I-stop-mini did not differ to those of Obtryx. However, long-term data and further prospective studies on I-stop-mini are necessary to arrive at a definite conclusion.

Focusing on long-term complications of mid-urethral slings among women with stress urinary incontinence as a patient safety improvement measure: A protocol for systematic review and meta-analysis

BACKGROUND

There are 3 different types of mid-urethral sling, retropubic, transobturator and single incision performed for women with stress urinary incontinence. Prior studies comparing these three surgeries merely focused on the successful rate or efficacy. But nevertheless, what is more clinically important dwells upon investigating postoperative complications as a safety improvement measure.

METHODS

A systematic review via PubMed, Ovid, and the Cochrane Database of Systematic Review and studies were applied based on the contents with clearly identified complications. Selected articles were reviewed in scrutiny by 2 individuals to ascertain whether they fulfilled the inclusion criteria: complications measures were clearly defined; data were extracted on study design, perioperative complications, postoperative lower urinary tract symptoms, postoperative pain, dyspareunia, and other specified late complications.

RESULTS

A total of 55 studies were included in the systemic review. Perioperative complications encompassed bladder perforation, vaginal injury, hemorrhage, hematoma, urinary tract infection. There were postoperative lower urinary tract symptoms including urine retention and de novo urgency. Furthermore, postoperative pain, tape erosion/ extrusion, further stress urinary incontinence surgery, and rarely, deep vein thrombosis and injury of inferior epigastric vessels were also reported.

CONCLUSIONS

Complications of mid-urethral sling are higher than previously thought and it is important to follow up on their long-term outcomes; future research should not neglect to address this issue as a means to improve patient safety.

Comparison of outcomes of Burch colposuspension and transobturator tape and single incision needleless procedures (DynaMesh®-SIS minor) for the surgical treatment of female stress urinary incontinence patients who underwent combined pelvic reconstructive surgery or hysterectomy

PURPOSE

Women with stress urinary incontinence (SUI) often require combined pelvic reconstructive surgeries because of shared risk factors of pelvic organ prolapse. The purpose of this study was to evaluate efficacies of Burch colposuspension, transobturator tape (TOT), and single-incision needleless (DynaMesh^®-SIS minor) procedures in patients with SUI who also underwent combined pelvic reconstructive surgery or hysterectomy.

METHODS

We performed this retrospective cohort study that comprising 122 patients who either underwent Burch colposuspension (n:43), TOT (n:40), or SIS (n:39) procedures along with pelvic reconstructive surgery or hysterectomy between January 2010 and July 2018. During the clinical follow-up, we analyzed cure rates, and surgical success rates of SUI surgery, quality of life, and symptom severity by IIQ-7, UDI-6, SSI, SSQ-8, OAB-V8, and PGI-I scale scores. The primary outcome was surgical success, whereas secondary outcomes included complications and patient-reported outcomes in the quality of life.

RESULTS

We found that surgical success rates were higher in Burch group than SIS group and higher in TOT group than in SIS group (88.4% vs 61.5% and 87.5% vs 61.5%, p = 0.003). The quality of life was lower in SIS group than in Burch group.

CONCLUSIONS

Both Burch and TOT are effective procedures in patients with SUI who require additional pelvic surgeries. Although surgical outcomes of SIS procedure in patients with SUI who underwent concomitant pelvic surgeries in our study were not promising, further studies with SIS are needed to clarify these observations.

Contasure-needleless single incision slings versus transobturator slings (TOT/TVT-O) for female patients with stress urinary incontinence: a systematic review and meta-analysis

Background

To assess the current evidence on the effectiveness and safety of Contasure-Needleless (C-NDL) versus transobturator slings (TOT/TVT-O) in the management of female stress urinary incontinence (SUI).

Methods

A comprehensive literature review of articles that investigated the efficacy and safety of C-NDL and TOT/TVT-O was performed based on studies published before June 2019 and retrieved from PubMed, Embase, CNKI and the Cochrane Library. Two reviewers searched the literature, independently extracted the data and evaluated the quality of the data according to the inclusion and exclusion criteria. A meta-analysis was performed by using Review Manager 5.3 software.

Results

Seven studies with 1188 SUI female patients without intrinsic sphincter deficiency (ISD) or mixed urinary incontinence were included. Our meta-analysis showed that the clinical efficacy of C-NDL is statistically non-inferior to that of TOT / TVT-O in terms of subjective cure rate [OR = 0.77, 95% confidence interval (CI) (0.53 to 1.10), p = 0.15] and objective cure rate [OR = 0.78, 95% CI (0.53 to 1.13), p = 0.19]. In addition, operating times were statistically shorter with C-NDL compared to TOT / TVT-O [mean difference (MD) = − 7.38, 95% CI (− 10.73 to − 4.04), p < 0.0001]. In terms of the postoperative visual analogue scale (VAS) and the incidence of postoperative pain, C-NDL has a greater advantage [MD = − 1.71, 95% CI (− 2.91 to − 0.50), p = 0.005]; [OR = 0.21, 95% CI (0.05 to 0.96), p = 0.04]. Complication rates were statistically similar between the groups, except for groin pain which was higher in TOT / TVT-O.

Conclusion

Our data suggest that C-NDL slings have similar short-term efficacy as TOT/TVT-O in curing SUI patients. Compared with TOT/TVT-O, C-NDL is associated with a shorter operative time, and the incidence of postoperative pain is decreased. Nevertheless, these findings should be further confirmed through large-volume, well-designed prospective randomized controlled trials (RCTs) with long-term follow-up.

Is the anchor matter? A short-term follow-up of the effect of mini-invasive mid urethra sling without anchor for urinary incontinence women

OBJECTIVE

Stress urinary incontinence (SUI) is a common disease in aged women, and some of them need surgical correction. Recently, the mid-urethral sling is an accepted surgical approach for SUI. However, complication may occur in this surgery, and some of them are needle-related. Therefore, the needleless system may diminish this-type complication.

MATERIALS AND METHODS

We conducted a retrospective study to evaluate the feasibility of women with SUI undergoing needleless sling surgery in 2017. Assessments were performed by two independent special urogynecologists before, during and post operation periods. We used a category-time-site-pain code following the International Continence Society and International Urogynecological Association (ICS/IUGA) Complication Classification Code (CCC) guidelines.

RESULTS

Thirty-eight women were analyzed. The characteristics of the patients were 66.3 ± 12.8 years old (mean ± standard deviation) of age, 2.8 ± 1.2 of parity, and 25.6 ± 4.2 kg/m² of body mass index. All had history of vaginal delivery for term. The objective cure rate at 2- and 4-week follow-up was 97.4% (n = 37) and 94.7% (n = 36), respectively. The subjective cure rate at 2- and 4-week follow-up was both 89.5% (n = 34). Both objective and subjective cure rates remained constant and similar to the end of 4 weeks. There were 6 patients (15.8%) who had complications according to ICS/IUGA CCC guidelines.

CONCLUSION

This needleless mid-urethral sling procedure seemed to be feasible in the management of women with SUI in this small series and short-term follow-up study, suggesting that a further prospective, randomized, comparative study with other tension-free procedures and mini-sling systems can be conducted.

Is There Outcome Reporting Heterogeneity in Trials That Aim to Assess the Effectiveness of Surgical Treatments for Stress Urinary Incontinence in Women?

CONTEXT

Inconsistent reporting of effectiveness outcomes in surgical trials of stress urinary incontinence (SUI) has hindered direct comparisons of various surgical treatments for SUI.

OBJECTIVE

To systematically review the verbatim outcome names, outcome definitions, and tools used to measure the outcomes in surgical trials of SUI in women.

EVIDENCE ACQUISITION

Trials of women with SUI who have undergone surgical interventions were included. We conducted a systematic review (SR) on outcomes reported in randomized controlled trials of surgical management published in 2014-2019, covering the following databases: MEDLINE, EMBASE, CENTRAL, and CDSR. Verbatim outcome names extracted from the included studies were categorized and then grouped into domains using the Williamson-Clarke (W/C) outcome taxonomy. A matrix was also created to visualize and quantify the dimensions of outcome reporting heterogeneity in SUI trials.

EVIDENCE SYNTHESIS

A total of 844 verbatim outcome names were extracted, of which, 514 varied terms were reduced to 71 standardized outcome names. They were further categorized into 11 domains from the W/C taxonomy. There were 7.24 different terms on average to describe each outcome, and the four outcomes with the most heterogeneity evident in terms used to describe them were "urinary retention", "reoperation", "subjective cure rate" and "quality of life". Each of them had ≥20 different terms. Only 28% of the outcome definitions were reported and a variety of measuring tools was noted, particularly in subjective outcomes. High heterogeneity was found in the outcome names, outcome definitions, choice and number of measuring instruments of the outcomes, and choice and number of outcomes reported across studies.

CONCLUSIONS

This SR provides objective evidence of heterogeneity in outcome reporting in SUI surgical trials. Our categorization of outcomes highlights the difficulties in summarizing the current evidence base. A core outcome set, developed using the methods advocated by the Core Outcome Measures in Effectiveness Trials (COMET) and COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) initiatives, is required.

PATIENT SUMMARY

In this research, we have highlighted the diversity in outcomes reporting in stress urinary incontinence (SUI) surgical trials and have categorized the outcomes. We support the development of a core outcome set for SUI, which will promote future clinical researchers to measure the same outcome in the same way in all trials. This will, in turn, help researchers summarize the evidence more effectively and aid decision making for patients and doctors.

The International Urogynecological Association/International Continence Society classification of complications of prosthesis and graft insertion: Pros and cons and a review of the literature

International Urogynecological Association (IUGA) and the International Continence Society (ICS) and the Joint IUGA/ICS Working Group on Complications Terminology formulated a standardized terminology and classification of complications related to the use of prosthesis in female pelvic floor surgeries. It was mainly purposed to globally standardize the complications and related definitions in order to obtain factual rates and to enable comparisons and surgical audits. Although this unique classification has frequently been cited in the literature, some concerns have been raised against its complexity of use and inter- and intraobserver variability. This review aimed to discuss the rationale behind the IUGA/ICS complication classification system, underline the opposing views, and provide the Turkish version of an online calculator facilitating the universal coding to increase the utility.

A bioactive injectable bulking material; a potential therapeutic approach for stress urinary incontinence

Stress urinary incontinence (SUI) is a life changing condition, affecting 20 million women worldwide. In this study, we developed a bioactive, injectable bulking agent that consists of Permacol™ (Medtronic, Switzerland) and recombinant insulin like growth factor-1 conjugated fibrin micro-beads (fib_rIGF-1) for its bulk stability and capacity to induce muscle regeneration. Therefore, Permacol™ formulations were injected in the submucosal space of rabbit bladders. The ability of a bulking material to form a stable and muscle-inducing bulk represents for us a promising therapeutic approach to achieve a long-lasting treatment for SUI. The fib_rIGF-1 showed no adverse effect on human smooth muscle cell metabolic activity and viability in vitro based on AlamarBlue assays and Live/Dead staining. Three months after injection of fib_rIGF-1 together with Permacol™ into the rabbit bladder wall, we observed a smooth muscle tissue like formation within the injected materials. Positive staining for alpha smooth muscle actin, calponin, and caldesmon demonstrated a contractile phenotype of the newly formed smooth muscle tissue. Moreover, the fib_rIGF-1 treated group also improved the neovascularization at the injection site, confirmed by CD31 positive staining compared to bulks made of Permacol^TM only. The results of this study encourage us to further develop this injectable, bioactive bulking material towards a future therapeutic approach for a minimal invasive and long-lasting treatment of SUI.