ABSTRACT
Objective. To assess treatment efficacy and quality of life in women with stress urinary incontinence 3 years after treatment with nonsurgical transurethral radiofrequency collagen denaturation. Methods. This prospective study included 139 women with stress urinary incontinence due to bladder outlet hypermobility. Radiofrequency collagen denaturation was performed using local anesthesia in an office setting. Assessments included incontinence quality of life (I-QOL) and urogenital distress inventory (UDI-6) instruments. Results. In total, 139 women were enrolled and 136 women were treated (mean age, 47 years). At 36 months, intent-to-treat analysis (n = 139) revealed significant improvements in quality of life. Mean I-QOL score improved 17 points from baseline (P = .0004), while mean UDI-6 score improved (decreased) 19 points (P = .0005). Conclusions. Transurethral collagen denaturation is a low-risk, office-based procedure that results in durable quality-of-life improvements in a significant proportion of women for as long as 3 years.
ABSTRACT
AIMS: To evaluate 18-month safety and durability of efficacy of nonsurgical transurethral collagen denaturation as treatment for stress urinary incontinence (SUI) in women. METHODS: Study comprised women with SUI due to bladder outlet hypermobility for at least 12 months who failed conservative treatment and had not undergone surgery or bulking agent treatment. This one-time procedure was performed in a physician's office or ambulatory treatment center. Patients kept voiding diaries and completed the Incontinence Quality of Life (I-QOL), Urogenital Distress Inventory (UDI-6), and Patient Global Impression of Improvement measures at baseline and at 3, 6, 12, and 18 months posttreatment. RESULTS: At 18 months, intent-to-treat analysis revealed that patients experienced significant reductions in the median number of stress leaks daily (0.43; P < 0.006) and weekly (3.0; P < 0.006) versus baseline, with 46.7% reporting a 50% or greater reduction in leakage. Mean I-QOL score improved 10.9 points (median 8.5; P < 0.0001), with 47.8% having a 10-point or greater improvement and 50.4% reporting improved symptoms versus baseline. Mean UDI-6 improvement was 13.0 points, with a stress incontinence subscore improvement of 17.0 points. Overall, 47.0% of patients were "somewhat" or "very" satisfied, and 52.9% would recommend the procedure to a friend. The procedure was shown to be safe and effective, with no new treatment-related adverse events reported at 18 months. CONCLUSIONS: Transurethral collagen denaturation resulted in significant improvements in stress leaks and quality of life for at least 18 months. This procedure offers a safe, effective, nonsurgical treatment option for women with SUI.
Subject(s)
Collagen/chemistry , Diathermy/methods , Urinary Bladder/physiopathology , Urinary Incontinence, Stress/therapy , Adult , Aged , Aged, 80 and over , Diathermy/adverse effects , Female , Humans , Middle Aged , Patient Satisfaction , Prospective Studies , Protein Denaturation , Quality of Life , Time Factors , Treatment Outcome , United States , Urinary Incontinence, Stress/physiopathology , Urinary Incontinence, Stress/psychologyABSTRACT
STUDY OBJECTIVE: To assess efficacy of nonsurgical transurethral collagen denaturation (Renessa) in women with stress urinary incontinence (SUI) caused by bladder outlet hypermobility. DESIGN: Continuing, prospective, 36-month, open-label, single-arm clinical trial. Twelve-month results from intent-to-treat (ITT) analysis are reported. Canadian Task Force classification II-2. SETTING: Thirteen physician offices or ambulatory treatment centers. PATIENTS: Women with SUI secondary to bladder outlet hypermobility for 12 months or longer who failed earlier conservative treatment and had not received earlier surgical or bulking agent therapy. INTERVENTIONS: Women were treated as outpatients and received an oral antibiotic and local periurethral anesthesia before undergoing treatment with transurethral radiofrequency collagen denaturation. MEASUREMENTS AND MAIN RESULTS: Voiding diaries and in-office stress pad weight tests yield objective assessments. Subjective measures include the Incontinence Quality of Life (I-QOL), Urogenital Distress Inventory (UDI-6), and Patient Global Impression of Improvement (PGI-I) instruments. In total, 136 women received treatment (ITT population). Patients experienced significant reductions versus baseline in median number of leaks caused by activity/day and activity/week (p <.0026 for both), with 50% of patients reporting 50% or more reduction. Pad weight tests revealed that 69% of women had 50% or more reduction in leakage (median reduction 15.2 g; p <.0001); 45% were dry (29% no leaks; 16% < 1-g leakage). Significant improvements occurred in median scores on the I-QOL (+9.5 [range -66.0 to 91.0]; p <.0001) and mean scores on the UDI-6 (-14.1 +/- 24.7; p <.0001). Furthermore, 71.2% showed I-QOL score improvement, including 50.3% with 10-point or greater improvement, and 49.6% reported on the PGI-I that they were "a little," "much," or "very much" better. CONCLUSION: At 12 months, treatment of SUI with nonsurgical transurethral collagen denaturation resulted in significant improvements in activity-related leaks and quality of life.
