Related Experiment Video
Updated: Mar 13, 2026
Transcorporal Artificial Urinary Sphincter Cuff Placement in a Case Requiring Revision for Urethral Atrophy
Published on: June 16, 2022
[Uroflowmetric review of pediatric distal urethroplasty]
N Vega Mata1, C Gutiérrez Segura1, V Álvarez Muñoz1
1Servicio de Cirugía Pediátrica. Hospital Universitario Central de Asturias. Oviedo.
Insights
Uroflowmetry effectively detects urethral strictures after hypospadias surgery. Treatment normalizes flow rates and urinary curves, confirming uroflowmetry
Area of Science:
- Urology
- Pediatric Surgery
Background:
- Urethral stricture is a common complication following hypospadias repair.
- Postoperative monitoring is crucial for early detection of complications.
- Uroflowmetry is the primary diagnostic tool for assessing urinary flow.
Purpose of the Study:
- To evaluate functional outcomes in patients after distal urethroplasty using uroflowmetry.
- To correlate uroflowmetry findings with stenotic complications in hypospadias surgery.
Main Methods:
- Retrospective review of 81 patients undergoing distal hypospadias repair.
- Postoperative uroflowmetric studies were performed.
- Patients were grouped based on the presence or absence of stenotic complications.
Main Results:
- Stenotic complications correlated with significantly reduced maximum and mean flow rates.
- Urinary flow curves in stricture cases showed plateauing patterns.
- Treatment of stenotic complications led to normalization of flow rates and curve shapes in most patients.
Conclusions:
- Uroflowmetry is a reliable, non-invasive method for evaluating hypospadias surgery outcomes.
- Obstructed uroflow patterns are indicative of stenotic complications.
- This method aids in objective assessment and management of post-hypospadias repair complications.
Introduction:
Urethral stricture is the most common complication in hypospadias surgery. The monitoring of operated patients allows rapid detection of this complication and the uroflowmetry is the main diagnostic method.
Objectives:
To study of functional results in patients who underwent distal urethroplasty, using uroflowmetry.
Patients And Methods:
A retrospective chart review was conducted of 81 patients who underwent distal hypospadias repair (7 coronal, 51 subcoronal and 23 distal penile shaft) and a postoperatory uroflowmetric study. The patients were divided into two groups, in each type of hypospadias, according to the presence or absence of stenotic complications (0 coronal, 10 subcoronal and 5 distal penile shaft). The functional effects in both groups were studied.
Results:
All patients with stenotic complications showed maximum flow rates and mean flow rates below 15 and 20 percentiles respectively and a plateauing layout of the urinary flow curve. The treatment of these conditions resulted in the normalization of the maximum flow values (in 100% of the subcoronal and 100% of the distal penile shaft hypospadias), as well as in the mean flow values (in 88% of the subcoronal and 75% of the distal penile shaft hypospadias). The curve also adapted a bell-shaped in 100% of the H. coronal and 50% of the H. distal penile shaft. The uroflowmetry presented a spontaneous improvement in all patients without stenotic complications but with low flows in their first uroflowmetric.
Conclusions:
Uroflowmetry is an objective method for the evaluation of hypospadias surgery, being easy to perform, noninvasive and reliable. Obstructed uroflow patterns point to the presence of a stenotic complication.
Related Concept Videos
01:19Urodynamic Studies: Uroflowmetry
01:25Urinary Tract Calculi VI: Surgical Management
01:22Imaging Studies V: Intravenous Urography and Retrograde Pyelography
01:26Kidney Transplant II: Surgical Procedure
01:28Urologic Endoscopic Procedure: Cystoscopic Examination