Detection of Meatal Stenosis with Uroflowmetry in Cases of Distal Hypospadias that are Operated with the TIPU Technique

Abstract

Objective: Meatal stenosis after hypospadias surgery causes difficulty in urination and intermittent cessation in urinary stream at the early postoperative period. Increasing the duration of catheterization, meatotomy, and meatal revision surgeries are among the procedures applied for meatal stenosis. If the diagnosis of meatal stenosis is made at an earlier stage, it is easier to manage it, especially in the younger age group. We aimed to determine whether the uroflowmetry technique can be a guide for detecting and following meatal stenosis. Material and Methods: Forty-one cases with distal hypospadias operated with the Tubularized Incised Plate Urethroplasty (TIPU) technique were involved in this study. At the postoperative 1st month, all the patients with or without complaints of meatal stenosis had uroflowmetries with an effort to provide an objective data for diagnosing stenosis at the early stages. The results of uroflowmetries were compared with the clinical signs of meatal stenosis. Results: The average maximum flow rate was found to be 11.3 mL/s (6.7–31.6), and the average voided quantity of urine was detected as 181.7 mL/s (71–283) as result of uroflowmetry. Ureteral stenosis was clinically diagnosed in three patients with intermittent urination, prolonged urination with poor flow, and with difficulty in starting urination. All patients were found to be similar. The uroflowmetry results were parallel to the clinical outcome in all patients. Conclusion: In the early stages, uroflowmetry can assist clinical observation as a non-invasive method. In addition, it makes it possible to perform earlier therapeutic interventions.

Keywords

• TIPU
• hypospadias