What is the appropriate treatment for a 74-year-old man with hypospadias who has catheter-related erosion, inflammation, and irritation?

Treatment of Catheter-Related Urethral Erosion in a 74-Year-Old Male with Hypospadias

Remove the catheter immediately and replace it with a suprapubic catheter to allow the erosion to heal, then pursue definitive surgical reconstruction once inflammation resolves.

Immediate Management

The priority is to eliminate the source of ongoing mechanical trauma. Promptly remove any catheter that is causing tissue erosion 1. The catheter is actively causing tissue damage and must be discontinued to prevent progression to full-thickness urethral loss.

Catheter Management Steps:

1. Remove the indwelling urethral catheter immediately

   • Continued catheterization through eroded tissue will worsen the defect 2, 3
   • Catheter traction is a major factor in repair breakdown 3

2. Establish alternative urinary drainage

   • Place a suprapubic catheter for temporary bladder drainage
   • This avoids further urethral trauma while allowing tissue healing
   • Suprapubic drainage is essential during the healing phase 3

3. Local wound care for the erosion site

   • Clean the area with antiseptic (chlorhexidine or povidone-iodine) 1
   • Apply sterile gauze dressing, changing when damp or soiled 1
   • Do not use topical antibiotic ointments on the erosion site as they promote fungal infections and antimicrobial resistance 1

Assessment Phase (2-4 Weeks)

Allow the acute inflammation to resolve before planning definitive repair:

• Monitor for signs of infection: fever, purulent drainage, expanding erythema
• If infection develops, initiate systemic antibiotics covering both Gram-positive (especially Staphylococcus) and Gram-negative organisms 4
• Document the extent of erosion: measure length from meatus, assess depth (partial vs. full-thickness), and evaluate penile skin involvement 5, 3

Definitive Surgical Reconstruction

Once inflammation subsides (typically 4-8 weeks), surgical repair is indicated:

Surgical Approach Based on Erosion Characteristics:

For erosions ≤6 cm without extensive skin loss:

• Primary closure is the preferred technique 3
• This showed the best outcomes in neurogenic bladder patients with catheter-induced erosion
• Success rate of 64% (7/11) in the largest series 3

For erosions >6 cm or with penile skin involvement:

• Modified single-stage dorsal-inlay buccal mucosa graft urethroplasty 5
• This technique successfully repaired mid-penile erosions with both urethral and skin involvement
• Healing time approximately 8 months 5

For complex cases with prior hypospadias:

• Consider staged repair if tissue quality is poor
• Use of modified balloon urethral catheter postoperatively reduces complications (10% vs. 42% with standard Foley) 6

Critical Postoperative Considerations

Avoid catheter traction after surgical repair - this is the single most important factor preventing recurrence 3. All recurrences in one series occurred in patients who experienced catheter traction postoperatively.

Postoperative Catheter Management:

• Use specialized urethral catheters with dilating cuffs rather than standard Foley catheters 6
• Secure catheter meticulously to prevent any tension on the repair
• Consider suprapubic drainage as alternative to urethral catheterization during healing

Common Pitfalls to Avoid

1. Continuing urethral catheterization through eroded tissue - this guarantees progression and complicates eventual repair
2. Using topical antibiotic ointments - increases fungal infection and resistance risk 1
3. Attempting immediate surgical repair - acute inflammation must resolve first for optimal tissue healing
4. Inadequate catheter securement postoperatively - catheter traction is the primary cause of repair failure 3
5. Using rigid silicone catheters long-term - these have higher erosion risk than softer alternatives 2

Long-Term Management

After successful repair, if long-term catheterization is still required:

• Transition to clean intermittent self-catheterization if feasible 5
• If indwelling catheter necessary, use suprapubic route rather than urethral
• Regular monitoring for recurrent erosion every 3-6 months

The combination of immediate catheter removal, proper wound care, delayed surgical reconstruction with primary closure when possible, and meticulous attention to postoperative catheter management offers the best chance for successful healing and functional outcomes 5, 3.