The surgical management of recurrent stress urinary incontinence: a systematic review

Evaluation of pelvic structural abnormalities in primiparous women with stress urinary incontinence

INTRODUCTION AND HYPOTHESIS

The objective was to evaluate the morphological characteristics of pelvic floor structure specific to de novo stress urinary incontinence (SUI) in primiparous women using three-dimensional (3D) reconstruction fusion technology based on static MRI combined with dynamic MRI.

METHODS

Eighty-one primiparous women after the first vaginal delivery were studied, 40 with SUI and 41 without SUI. 3D reconstruction models based on static MRI were used to describe the anatomical abnormalities of pelvic floor tissues. Dynamic MRI was used to describe segmental activities of the urethra and vagina. The relationship between the morphometry and postpartum SUI was evaluated by logistic regression analysis and receiver operator characteristic curve.

RESULTS

The differences in the distance from the bladder neck to the pubic symphysis (BSD), the angle between the posterior wall of the urethra and the anterior wall of the vagina, the width of the distal region of the vagina, urethral length, urethral compression muscle volume (CUV), and pubovisceral muscle volume, puborectal muscle volume, were measured, and except for the extremity of the anterior urethral wall, the total displacements (TDs) of the other sites between the two groups were statistically significant (p < 0.05). Logistic regression analysis showed that the BSD decreased, the CUV decreased, the TDs of the first site and the eighth site increment correlated significantly with postpartum SUI occurrence (p < 0.05).

CONCLUSIONS

3D reconstruction fusion technology provides an important support for a precise assessment of the pelvic floor dysfunction. The BSD, CUV, and iliococcygeus muscle volume have certain values in predicting de novo SUI after first vaginal birth.

Recurrent stress urinary incontinence surgery in the United Kingdom: an analysis of the British Society of Urogynaecology database (2007-2015)

INTRODUCTION AND HYPOTHESIS

There is a lack of robust evidence guiding treatment options for recurrent stress urinary incontinence (SUI) and limited comparative outcome data. The aim of this study was to examine the pattern of surgery for recurrent SUI performed by gynaecologists in the UK and compare subjective success rates.

METHODS

Retrospective review of the British Society of Urogynaecologists database for patients having repeat incontinence procedures (2007-2015) including the number of each procedure and outcome recorded by the International Consultation on Incontinence Urinary Incontinence Short Form (ICIQ-UI-SF) questionnaire. Procedures were compared by year and outcomes by operation. Categorical comparisons were performed using Chi-squared test and numerical comparisons using appropriate non-parametric tests.

RESULTS

A total of 2,938 records were obtained (269 were excluded) and 2,164 women (88.8%) had undergone one previous procedure, most commonly retropubic midurethral sling (MUS; 28.6%). Pelvic floor exercises were offered to 76.2% women. Urodynamic investigation was carried out in 96.2% women: 76.5% had urodynamic stress incontinence. Repeat MUS was the most common procedure (77.3%), followed by bladder neck injections (BNI; 10.2%). Follow-up details were available for 66.1%. Outcome data were poorly reported. Median ICIQ-UI-SF score fell from 16 (0-21) to 0 (0-21) (p < 0.001), 81.6% felt "much better" or "very much better" on Patient Global Impression of Improvement (PGI-I), and 89.3% "cured" or "improved". MUS, colposuspension and fascial sling showed the best results with regard to the PGI-I score and "change in SUI" (p < 0.001).

CONCLUSION

MUS and BNI were the most common repeat continence procedures. Follow-up data suggest that MUS, colposuspension and fascial sling are most effective.

What to do after a mid-urethral sling fails

PURPOSE OF REVIEW

After the Food and Drug Administration Public Health Notification in 2011 regarding transvaginal mesh, there has been a decline in the use of mid-urethral slings (MUS). However, they are an effective treatment option for stress urinary incontinence (SUI) with minimal complications. The management of recurrent SUI after sling continues to be debated.

RECENT FINDINGS

Long-term follow-up after primary MUS confirms its efficacy and safety. There remains no level 1 evidence for the best next step after a failed MUS. Preferred treatment strategies include placing a repeat MUS with more recent evidence demonstrating no difference in cure rates between transobturator tape and retropubic approach. Pubovaginal slings (PVS) and urethral bulking agents are also acceptable treatment options. A newer bulking agent, polyacrylamide hydrogel, demonstrated excellent short-term success rates in patients after a failed sling.

SUMMARY

MUS is an effective treatment option for SUI. Patients who develop recurrent urinary incontinence are a heterogeneous population who must be evaluated for detrusor overactivity, misplaced sling, unrecognized ISD. Patients with ISD are more likely to benefit by a PVS. Other patients with demonstrated recurrent SUI will likely do well with a repeat MUS.

Long-term outcomes of retropubic tension-free vaginal tape for stress urinary incontinence after a transobturator tape failure: a retrospective study

INTRODUCTION AND HYPOTHESIS

Management of stress urinary incontinence (SUI) after a transobturator tape (TOT) failure is a controversial issue. There are few long-term data on the different treatment options. The aim of this study is to evaluate the long-term effectiveness and safety of retropubic suburethral slings (RP-TVT) in this setting.

METHODS

A descriptive retrospective study was performed among women with persistent/recurrent SUI treated at the Vall d'Hebron University Hospital between January 2006 and December 2014. All women were preoperatively evaluated to rule out complications of the first sling. Postoperative follow-up was performed at 1, 6 and 12 months and yearly thereafter. Outcomes were classified as cured, improved or failed.

RESULTS

Forty-one women were operated on over the study period. The median follow-up time was 103.2 months. Likelihood to be cured or improved at 3, 5, 7 and 10 years was 78.0%, 75.4%, 71.9% and 67.4%, respectively. Absence of urethral hypermobility was the only variable related to RP-TVT failure. Complications during follow-up were observed in 39% of patients, although most of them were mild. However, two cases (4.9%) of vaginal exposure and three (7.3%) of lower urinary tract extrusion were observed. De novo urgency occurred 17.1% of women.

CONCLUSIONS

RP-TVT showed reasonable long-term effectiveness but had a high overall complication rate in the treatment of persistent/recurrent SUI after TOT. Expected outcomes and possible side effects should be discussed in detail during counseling before opting for a treatment option.

Interventions for treating recurrent stress urinary incontinence after failed minimally invasive synthetic midurethral tape surgery in women

BACKGROUND

Surgery is a common treatment modality for stress urinary incontinence (SUI), usually offered to women for whom conservative treatments have failed. Midurethral tapes have superseded colposuspension because cure rates are comparable and recovery time is reduced. However, some women will not be cured after midurethral tape surgery. Currently, there is no consensus on how to manage the condition in these women.This is an update of a Cochrane Review first published in 2013.

OBJECTIVES

To assess the effects of interventions for treating recurrent stress urinary incontinence after failed minimally invasive synthetic midurethral tape surgery in women; and to summarise the principal findings of economic evaluations of these interventions.

SEARCH METHODS

We searched the Cochrane Incontinence Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In-Process, MEDLINE Epub Ahead of Print, ClinicalTrials.gov, WHO ICTRP and handsearching of journals and conference proceedings (searched 9 November 2018). We also searched the reference lists of relevant articles.

SELECTION CRITERIA

We included randomised and quasi-randomised controlled trials in women who had recurrent stress urinary incontinence after previous minimally invasive midurethral tape surgery. We included conservative, pharmacological and surgical treatments.

DATA COLLECTION AND ANALYSIS

Two review authors checked the abstracts of identified studies to confirm their eligibility. We obtained full-text reports of relevant studies and contacted study authors directly for additional information where necessary. We extracted outcome data onto a standard proforma and processed them according to the guidance in the Cochrane Handbook for Systematic Reviews of Interventions.

MAIN RESULTS

We included one study in this review. This study was later reported in an originally unplanned secondary analysis of 46 women who underwent transobturator tape for recurrent SUI after one or more previous failed operations. We were unable to use the data, as they were not presented according to the nature of the first operation.We excluded 12 studies, five because they were not randomised controlled trials (RCTs) and four because previous incontinence surgery was not performed using midurethral tape. We considered a further three to be ineligible because neither the trial report nor personal communication with the trialists could confirm whether any of the participants had previously undergone surgery with tape.We had also planned to develop a brief economic commentary summarising the principal findings of relevant economic evaluations but supplementary systematic searches did not identify any such studies.

AUTHORS' CONCLUSIONS

There were insufficient data to assess the effects of any of the different management strategies for recurrent or persistent stress incontinence after failed midurethral tape surgery. No published papers have reported exclusively on women whose first operation was a midurethral tape. Evidence from further RCTs and economic evaluations is required to address uncertainties about the effects and costs of these treatments.

Management of post-midurethral sling voiding dysfunction. International Urogynecological Association research and development committee opinion

Voiding dysfunction following midurethral sling procedures is not a rare event. There is no current consensus regarding management of this complication. Although it is often transient and self-limiting, chronic post-midurethral sling voiding dysfunction may lead to irreversible changes affecting detrusor function. Initial management includes intermittent catheterization, and addressing circumstantial factors interfering with normal voiding, such as pain. Early sling mobilization often resolves the dysfunction, and is associated with minimal morbidity. Sling incision or excision at a later stage, although fairly effective, could be associated with recurrence of stress urinary incontinence. There is insufficient evidence to justify urethral dilatation in this context.

A Valuable Option in the Management of Female Recurrent Stress Urinary Incontinence: Re-Adjustable Sling (Remeex Sling System)

INTRODUCTION

This study was conducted to evaluate the effectiveness and safety of adjustable slings in the treatment of recurrent stress urinary incontinence (SUI) after mid-urethral sling (MUS) failure.

MATERIALS AND METHODS

A prospective study was performed among women with recurrent SUI at the Urogynecology Division of Istanbul School of Medicine between February 2010 and March 2015. All women were preoperatively evaluated with detailed urogynecologic evaluations, which included pelvic examination, Q-tip test, pad test, urodynamic studies and a compilation of the Kings Health Questionnaire (KHQ). Postoperative follow-up was performed at 1, 6 and 12 months and annually thereafter. Our primary outcome was objective cure and patient's satisfaction with treatment. Secondary outcomes included perioperative complications and adverse events.

RESULTS

Nineteen women were included in the study. The patients' mean age was 55.3 ± 6.9 years (range 43-66 years). The median follow-up time was 20.7 ± 14.0 months (range 6-55 months). The overall cure and improvement rates were 84.2 and 10.5%, respectively. In the satisfaction questionnaire, 15 (79%) patients responded that they were very satisfied and 3 (15.7%) were moderately satisfied. Sling tension re-adjustment was needed during follow-up in 1 patient (5.3%), 13 months after the initial surgery. The preoperative mean KHQ score was 545.9 ± 243.0 and changed to 237.0 ± 217.5 (p < 0.05). Postoperative complications were slight and easily manageable.

CONCLUSIONS

Recurrent SUI is a challenging condition in urogynecology. The Regulation Mechanical External (Remeex) system has been found to be effective in the treatment of recurrent SUI after MUS failure with acceptable adverse effects. The Remeex system has the advantage of re-adjustment as a valuable option in the long-term management of patients.

Risk factors for failure of repeat midurethral sling surgery for recurrent or persistent stress urinary incontinence

INTRODUCTION AND HYPOTHESIS

To study the outcomes following repeat midurethral sling (MUS) surgery in patients with persistent or recurrent stress urinary incontinence after failure of primary MUS surgery and risk factors for surgical failure.

METHODS

The medical records of 24 patients who underwent repeat MUS surgery at a single tertiary center from January 2004 to February 2014 were reviewed. The types of MUS used for the repeat surgey were transobturator, retropubic and single incision slings. Objective cure was defined as no demonstrable involuntary leakage of urine during increased abdominal pressure in the absence of a detrusor contraction observed during filling cystometry, and subjective cure was defined as a negative response to Urogenital Distress Inventory six (UDI-6) question 3 during follow-up between 6 months and 1 year postoperatively. The change in the inclination angle between the urethra and pubic axis was measured with introital ultrasonography and the cotton swab test performed.

RESULTS

The objective and subjective cure rates were 79.2 % and 75 %, respectively. There were no differences in demographics between the patients with failure of surgery and those with successful surgery. Significant independent risk factors for failure of repeat MUS surgery were a change in cotton swab angle at rest and straining of <30° (OR 4.6, 95 % CI 2.5 - 7.9°), a change in inclination angle of <30° (OR 4.6, 95 % CI 2.5 - 7.9°), intrinsic sphincter deficiency (OR 3.4, 95 % CI 1.8 - 6.1) and a mean urethral closure pressure of <60 cm H2O (OR 2.9, 95 % CI 1.5 - 4.5). In one patient the bladder was perforated.

CONCLUSIONS

Repeat MUS surgery is safe and has a good short-term success rate, both objectively and subjectively, with independent risk factors for failure related to bladder neck hypomobility and poor urethral function.