[Clinical experience of transurethral collagen injections for urinary stress incontinence--analysis of subjective symptoms].

We evaluated the results of transurethral collagen injections for urinary stress incontinence. Twenty five women (mean age was 61.3 years) with urinary incontinence were treated with transurethral collagen injections using local or spinal anesthesia. The mean follow-up was 11.7 months (range 2 to 30). We examined the results based on subjective symptoms for incontinence. We could judge convalescence efficacy to some degree 1 month after operation, but patient age, type of stress incontinence, pad test and volume of collagen were not significantly different between patients who were cured and those not cured. Of the patients who needed injections more then 2 times, treatment was effective in type III patients. The patients whose symptoms were improved 3 months after operation wanted a re-operation when their incontinence recurred. Injection of transurethral collagen appears to be a safe and effective method for treating urinary incontinence. This procedure is a first choice for urinary incontinence.