Outcomes of urodynamic mixed urinary incontinence and urodynamic stress incontinence with urgency after mid-urethral sling surgery

Predictors and outcomes of Mid-urethral sling continence surgeries for stress urinary incontinence among Taiwanese women: What works best?

Mid urethral sling (MUS) surgery is a widely accepted and safe procedure performed for stress urinary incontinence (SUI) with excellent cure rate besides its minimal complications. There are various types of MUS which can be offered. In this review we collated published data on MUS surgery performed among Taiwanese women with SUI in search for the best techniques and its outcome. We reviewed 77 articles, searched using PubMed platform related to MUS in USI among Taiwanese women from 1998 to 2023.24 articles, total 2733 participants with at least 12 months follow up after MUS. Objective cure rate for trans-obturator tape (TOT), retropubic sling (TVT, tension vaginal tape), single incision sling (SIS) (Solyx) and SIS (MiniArc) are 80%-92%, 88%-94%, 87%-90% and 87%-91% respectively, while subjective cure is 60%-90% in TOT, 86% in SIS (Solyx) and almost 90% in SIS (MiniArc), Predictors for surgical failure analyzed in 5 papers of 1006 women. Identifiable risk includes low maximal urethral closure pressure, intrinsic sphincter deficiency, previous anti SUI or prolapse surgery, presence of neurogenic disease, constipation, decreased bladder sensation, age >65 years, high pad test, Diabetes, detrusor overactivity, post-menopausal, reduced postoperative urethral mobility and tape percentile. Subsequently we dwell into complications of each type of MUS. This review showed the evolution of MUS and its comparable therapeutic efficacy. However, with certain complication rates and predictors for failure. This will add value in preoperative counselling while taking into accounts patients' factors in choosing the appropriate types of MUS. Future research is needed on long term effectiveness and risk of future recurrence.

Sequential combined approach in patients with mixed urinary incontinence: surgery followed by posterior tibial nerve stimulation

BACKGROUND

The aim of the study was to demonstrate the efficacy of sequential combined treatment with transobturator tape (TOT) followed by posterior tibial nerve stimulation (PTNS) in patients with mixed urinary incontinence (MUI); quality of life and patients' satisfaction was also assessed.

METHODS

Retrospective analysis on women affected by MUI with prevalent Stress Urinary Incontinence (SUI) component. Women, divided in 2 groups, underwent different treatments, TOT vs. TOT+PTNS. Population was assessed by medical history, previous pelvic surgery, clinical exam, urodynamic exams, pelvic ultrasound examination, and questionnaires (The International Consultation on Incontinence Questionnaire Short Form, Overactive Bladder Questionnaire, Health Related Quality of Life) comparing them before and after 12 weeks after treatment.

RESULTS

One hundred twelve women were enrolled in the study. The mean age was 57.96±7.34 in the first group (N.=60) and 58.29±6.14 in the second group (N.=52). Peak flow (mL/s) statistically improved after treatment, 22.23±4.29 (TOT) vs. 24.81±5.8 (TOT+PTNS). First voiding desire (mL) improved significantly between the two groups 108.72±19.24 vs. 142.43±19.98. Maximum cystometric capacity (mL) in the TOT group at 12-weeks was 328.76±82.44 vs. TOT+PTNS group of 396.26±91.21. Detrusor pressure at peak flow(cmH2O) showed a greater improvement in TOT+PTNS than TOT alone 14.45±6.10 vs. 11.89±54.49. At 12-week, urinary diary and quality of life improved in terms of urgent urination events, mean number of voids, urge symptoms and nocturia events. The Patient Impression of Global Improvement (PGI-I) after 3 months was better in combined group.

CONCLUSIONS

Combined and sequential TOT+PTNS is more effective compared to TOT alone in MUI patients with prevalent SUI component.

Treatment outcome of women with urodynamic mixed urinary incontinence: an observational study

INTRODUCTION AND HYPOTHESIS

Mixed urinary incontinence (MUI) is a common yet understudied condition. It remains a therapeutic challenge, with the presence of both stress urinary incontinence (SUI) and urgency urinary incontinence (UUI). There is limited information on the optimal management for women with urodynamic MUI (urodynamic stress incontinence and detrusor overactivity). We assessed the treatment outcome of pelvic floor muscle training (PFMT), medical treatment and surgery for women who were diagnosed with urodynamic MUI.

METHODS

A prospective observational study was carried out on women with urodynamic MUI from 2010 to 2018. All women underwent clinical assessment and standardised urodynamic evaluation. All women received PFMT from a specialised continence advisor as initial management. Antimuscarinics and/or continence surgery were considered according to the woman's response and symptoms after PFMT. Subjective outcome after each treatment modality was analysed.

RESULTS

A total of 198 women were included for analysis. All women received PFMT, 104 (52.5%) showing improvement in urinary incontinence. Eighty-seven (43.9%) women were offered antimuscarinics, of whom 58 (29.3%) showed subjective improvement in both SUI and UUI, and 10 (5%) reported a reduction in UUI but persistent SUI. A total of 55 (27.7%) women received surgical treatment, with 20 receiving continence procedures. Sixteen out of twenty (80%) of them reported improvement in both SUI and UUI. None reported worsening of urgency or UUI. Overall, across all treatment modalities, 73.8% of women showed improvement in both SUI and UUI.

CONCLUSION

Future analyses can help to inform which patients will have a higher success rate after each treatment modality and help focus treatment effort on those with a high risk of persistent symptoms. This will provide relevant data in counselling women, giving reasonable expectations and directing the management of women with urodynamic MUI.

Bulking agents for the treatment of recurrent stress urinary incontinence: a suitable option?

BACKGROUND

The management of recurrent female stress urinary incontinence (SUI) still needs worldwide standardization. Few data on the role of urethral bulking agents (UBA) for the treatment of recurrent stress urinary incontinence exist. The aim of this study is to assess the efficacy and safety of urethral bulking agents for the treatment of recurrent SUI.

METHODS

A multicenter, prospective study was conducted in four tertiary referral centers in two countries. All consecutive women with urodynamically-proven recurrent SUI, and with a history of previous failed anti-incontinence surgical procedure (mid-urethral sling or single incision sling), treated by UBAs were included. We evaluated only patients who completed at least a 3-year follow-up. Data regarding subjective outcomes (International Consultation on Incontinence Questionnaire-Short Form, Patient Global Impression of Improvement, Urogenital Distress Inventory score and patient satisfaction score), objective cure (stress test) rates, and adverse events were collected during follow-up. Univariable and multivariable analyses was performed to investigate outcomes.

RESULTS

Forty-seven consecutive patients were enrolled. At 3-year follow-up, all women were available for the evaluation. At 3 years after surgery, 38 of 47 patients (81%) declared themselves cured. Similarly, at 3-year evaluation, 39 of 47 patients (83%) were objectively cured. Only five patients (10.6%) required re-operation for UBA failure. The urodynamic diagnosis of preoperative detrusor overactivity and the PDet Max filling phase ≥15 cmH<inf>2</inf>O (hazard ratio: 2.74; 95% CI, 1.64-10.7; P=0.009 and 1.62; 95% CI, 1.11-3.42; P=0.04, respectively) were the only predictors of failure. Only four complications were reported (8.5%).

CONCLUSIONS

The 3-year results of this study showed that bulking agents is an appropriately effective and safe option for the treatment of recurrent SUI. The presence of preoperative concomitant detrusor overactivity is associated with a significant decrease of the efficacy of this procedure.

Twenty-Five Years of the Midurethral Sling: Lessons Learned

Midurethral slings (MUS) are widely accepted for the surgical treatment of stress urinary incontinence (SUI) in cases where conservative treatment has failed. They have been shown to be a safe and effective surgical treatment for the management of SUI. However, there have recently been growing concerns regarding the safety profile of mesh procedures, generating international debate and leading to national inquiries into the effectiveness and safety of mesh implants. A multitude of clinical, technical, manufacturer-related, and other health jurisdictional factors are involved in the outcomes of MUS. Appropriate patient selection and informed consent to all treatment options, with proper guidance from healthcare providers, are critical for empowering women to choose an appropriate treatment option based on a personalized decision.

Predictors of cure and overactive bladder syndrome after a mid-urethral sling procedure in women with stress urinary incontinence

OBJECTIVES

To determine predictive factors for the cure of stress urinary incontinence (SUI) or persisting or de novo overactive bladder syndrome (OAB) after a mid-urethral sling procedure (MUS) for women with SUI, especially for menopausal women.

STUDY DESIGN

All women who had consecutively received MUS for SUI between January 2008 and July 2019 in a tertiary referral center were reviewed.

MAIN OUTCOME MEASURES

Multivariable Cox proportional hazards model or logistic regression analysis was used to assess the predictors of cure and persisting or de novo OAB after MUS.

RESULTS

A total of 385 women had undergone MUS, of whom 265 (68.8%) were menopausal. The multivariable Cox proportional hazards model revealed that age (hazard ratio = 1.04), and preoperative detrusor overactivity (hazard ratio = 2.26) were independent predictors of persisting/recurrent SUI. Among the 216 women with preoperative OAB, 109 (50.5%) experienced resolution of their OAB after MUS; and among 169 women without preoperative OAB, twenty-five (14.8%) women developed de novo OAB after MUS (p < 0.0001). Preoperative OAB (hazard ratio = 3.97), small voided volume (hazard ratio = 0.83), and preoperative detrusor overactivity (hazard ratio = 1.62) were predictors of postoperative OAB. In addition, six (1.6%) women had mesh extrusion. Parity (odds ratio = 2.08) was the sole predictor of mesh extrusion. Menopause (hazard ratio = 1.69) was a predictor of postoperative OAB in the univariate analysis. However, menopause was not a predictor of cure or OAB in the multivariable analysis.

CONCLUSIONS

Age and preoperative detrusor overactivity were independent predictors of persisting/recurrent SUI. In addition, preoperative OAB, small voided volume, and preoperative detrusor overactivity were predictors of postoperative OAB. These findings could serve as a guide for preoperative consultation for MUS.

The evolution of incontinence into resolved, refractory and de novo urgency urinary incontinence following sling placement at time of prolapse repair in a large urodynamic cohort

PURPOSE

To improve counseling in women at risk of refractory and/or de novo urgency urinary incontinence (UUI) following sling placement at time of prolapse repair, we created an outcome model to characterize changes in storage dysfunction.

MATERIALS AND METHODS

We identified 139 women who underwent urodynamics followed by sling or no sling placement at the time of prolapse repair over a 6-year period. Our primary outcome was the presence of UUI following sling placement. Data were analyzed in SAS using chi-square, Fisher's exact, Student's t-test, and Kaplan-Meier methods.

RESULTS

At baseline, the sling group had significantly higher subjective (62/81 [76.5%] vs. 18/58 [31.0%]; p<0.001), objective (62/81 [76.5%] vs. 6/58 [10.3%]; p<0.001), and occult (41/81 [50.6%] vs. 6/58 [10.3%]; p<0.001) stress urinary incontinence (SUI); and rates of subjective and objective UUI were similar to the no sling group prior to surgery. After surgery (mean follow-up 859 days) there was no difference with or without sling, in the rate of SUI (subjective, objective) and further SUI treatments (bulking agent, repeat sling). Higher rates of de novo (13/81 [16.0%] vs. 6/58 [10.3%]; p=0.454) and refractory (31/81 [38.3%] vs. 14/58 [24.1%]; p=0.048) UUI were noted in the sling group following surgery. On Kaplan-Meier analysis, a greater proportion of women in the no sling group did not report UUI at longest follow-up (hazard ratio 0.63; 95% confidence interval 0.37-1.06; p=0.081).

CONCLUSIONS

Women should be counseled on the risk of de novo and refractory UUI following sling placement at time of prolapse repair.

De novo detrusor overactivity and urgency after mid-urethral slings for urodynamic stress incontinence

INTRODUCTION AND HYPOTHESIS

The objective was to identify incidence and risk factors of de novo urgency and detrusor overactivity (DO) following mid-urethral slings (MUS) in patients with urodynamic stress incontinence (USI) without urgency.

METHODS

A total of 688 women between January 2004 and July 2017 were reviewed retrospectively. De novo urgency was established with a positive response to question 2 on the Urogenital Distress Inventory-6 questionnaire (UDI-6). Objective cure of USI is no involuntary urine leakage during filling cystometry and pad test < 2 g. Subjective cure of stress urinary incontinence (SUI) is defined as a negative response to question 3 on UDI-6. Multivariate logistic regression was used to identify risk factors for failure.

RESULTS

Forty-four out of 688 women (6.4%) developed de novo urgency, with 16 out of 688 (2.3%) demonstrating de novo DO. Subjective cure for women with de novo urgency was significantly lower at 35 out of 44 (79.5%) compared with 556 out of 644 (86.3%) in those with no urgency (p < 0.001). Objective cure for women with de novo DO was significantly lower at 8 out of 16 (50%) compared with 599 out of 672 (89.1%) in those with detrusor stability (p < 0.001). Quality of life improved for all. Age ≥ 66 (OR, 1.23; 1.07), increased bladder sensation (OR, 4.18; 3.80), lower bladder capacity (OR, 5.28; 4.97), lower maximum urethral closure pressure (OR, 2.32; 5.20), and pad test > 100 g (OR, 1.08; 1.15) were independent risk factors for de novo urgency and DO. Diabetes (OR, 1.32) was an independent predictor of de novo urgency.

CONCLUSION

Cure is significantly reduced in women who report symptoms of de novo urgency or demonstrate DO after MUS at 1 year. Independent risk factors include age ≥ 66, increased bladder sensation, lower bladder capacity, lower maximum urethral closure pressure, greater pad loss, and diabetes.