Management of Urethral Trauma from Catheterization
Immediate Actions
- The American Urological Association recommends immediate removal of the traumatic catheter to prevent further injury to the urethral meatus and surrounding tissue 1, 2
- Placement of a suprapubic tube is the preferred method for urinary drainage in patients with significant urethral trauma, including meatal splitting, as recommended by the American Urological Association 1, 2
- The American Urological Association advises against repeated attempts at urethral catheterization, as this increases injury extent and delays appropriate drainage 1, 3
Assessment of Injury Severity
- Retrograde urethrography is recommended if there is concern for injury beyond the meatus, such as blood at the meatus, inability to pass a catheter easily, or suspicion of deeper urethral trauma, as suggested by the American Urological Association 2, 3, 4
- The study is performed by introducing a catheter into the fossa navicularis, placing the penis on gentle traction, and injecting contrast material, as described by the American Urological Association 1, 2
Definitive Management
- The American Urological Association recommends obtaining urgent urology consultation for all patients with meatal splitting from catheter trauma 4
- Meatal lacerations typically require surgical repair to prevent meatal stenosis and ensure proper healing, as recommended by the American Urological Association 5
- Exploration and limited debridement of non-viable tissue should be performed by a urologist, with primary closure when possible, as suggested by the American Urological Association 5
Prevention Considerations
- The American Urological Association recommends using the smallest appropriate catheter size to minimize urethral trauma in future catheterizations 4
- Ensure adequate lubrication and gentle technique during all catheter insertions, as advised by the American Urological Association 1
- Remove catheters as soon as clinically appropriate to prevent ongoing trauma and complications, as recommended by the American Urological Association 4
Management of Urethral Trauma
Diagnostic Considerations
- The presence of blood at the urethral meatus is a key clinical finding that indicates urethral injury, occurring in 37-93% of urethral injuries, according to the American Urological Association 6
- Penile edema is another clinical finding associated with urethral injury, as noted in patients with suspected urethral trauma 6
Diagnostic Imaging
- The American Urological Association recommends performing retrograde urethrography (RUG) before any further catheterization attempts, as it is the gold standard for diagnosing urethral injuries, with a Grade C recommendation 7
- RUG should be performed with the patient positioned obliquely with bottom leg flexed, using a 12Fr Foley catheter or catheter-tipped syringe, and injecting 20 mL undiluted water-soluble contrast material 7
Management of Urethral Trauma
- In cases of significant urethral trauma, the American Urological Association recommends placing a suprapubic tube for urinary drainage, which can be done percutaneously or via open technique depending on the clinical setting 7
- For partial urethral injuries, a single attempt with a well-lubricated catheter may be attempted by an experienced team member only, after RUG confirmation, with caution due to the risk of converting a partial injury into a complete urethral transection 7
- Delayed urethroplasty may be necessary for complete urethral disruptions, as recommended by the American Urological Association 6
Prevention of Urethral Trauma
- Blind catheter passage should never be performed prior to retrograde urethrogram when blood is present at the meatus or when urethral injury is suspected, as it can convert a partial injury into complete urethral transection 7