Urethral dilatation with the renal sheath dilator under the ureteroscope to treat male urethrostenosis / 中华男科学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To explore the efficacy of urethral dilatation with the renal sheath dilator under the ureteroscope in the treatment of male patients with urethrostenosis.</p><p><b>METHODS</b>Eighteen male patients with urethrostenosis underwent urethral dilatation with the renal sheath dilator. Under the ureteroscope, a zebra-guide wire was inserted through the stenosed urethra into the bladder and the stenosis was gradually dilated with the renal sheath dilator, followed by placing a Foley catheter of proper size for 1-4 weeks. For children, the renal sheath dilator was selected according to their age, while for adults, metal dilators (> or = F20) were used following dilatation with the F18 renal sheath dilator. All the patients were followed up for 6-24 months.</p><p><b>RESULTS</b>The operation was successfully performed in all the 18 cases, with no urethral false passage, urethral perforation or urethra tearing. Sixteen of the patients were cured, and the other 2 received urethroplasty for stenosis recurrence. The maximum flow rate was increased to 13.6-30.2 (18.1 +/- 3.5) mL/s after the operation.</p><p><b>CONCLUSION</b>Urethral dilatation with the renal sheath dilator under the ureteroscope is a simple, safe and effective method for the treatment of urethrostenosis.</p>