Active clinical trials for "Urethral Stricture"

The choice of the best surgical technique for urethral stricture repair depends on the stricture length. Estimating the length of urethral strictures is therefore of utmost importance. Different clinical studies have proven that SUG has a higher sensitivity to evaluate the length of urethral strictures compared to RUG or VCUG. The goal of this study is to assess the feasibility of using SUG as single pre-operative assessment tool in patients with suspicion of anterior urethral strictures. In this way, use of RUG and/or VCUG could be omitted in the pre-operative work-up of patients with anterior urethral strictures, thereby avoiding significant radiation load of patients.

The purpose of this study is to determine whether laser internal urethrotomy (IU) is as efficient as cold knife internal urethrotomy for treatment of anterior urethral strictures regarding post operative urination outflow, stricture recurrence rate and possible post- operative complications

Conventional urethrography is the standard diagnostic evaluation for patients with a suspicion of urethral stricture. The radiation dose of this examination is 5-9 mSV. Sono-urethrography was introduced in 1988 (McAninch et al. , J Urol 1988); the diagnostic accuracy of sono-urethrography is equal compared to conventional urethrography, with even a better measurement of stricture length and degree of spongiofibrosis with sono-urethrography. However, sono-urethrography remained underused among urologists and radiologists. Patients will be randomly assigned into two groups: Group A: conventional urethrography Group B: sono-urethrography In case sono-urethrography is inconclusive or of poor quality, a conventional urethrography will be performed. The radiation dose in the two groups will be measured. The stricture length and location will be recorded and compared with the perioperative findings in order to evaluate the diagnostic accuracy. The complications of the procedure(s) will be recorded with a questionnaire directly after and two weeks after the conventional or sono-urethrography.

In this observational study, the investigators will evaluate potential risk factors associated with urethral stricture recurrence after augmentation anterior urethroplasty using dorsal onlay buccal mucosal Graft during the past 10 years. Patients' medical files will be reviewed for data relevant to demographics, clinical and operative characteristics. data will be analyzed using the appropriate statistical tests and the independent predictors of urethroplasty outcome will be identified.

The analysis of the long-term outcomes and quality-of-life parameters after urethral reconstruction surgery.

There is currently no prognostic or predictive risk marker for this urethral stricture disease. The most conservative standard treatment for urethral stricture (internal urethrotomy) has a very high recurrence rate (greater than 75%) and, on many occasions, reconstructive urologists have to choose within a great variety of further complex interventions. Knowing risk and predictive markers of this disease could help to optimize both the need and the approach for these surgeries and may offer a more individualized management to patients.