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Optical Urethrotomy
Optical Urethrotomy (DVIU) is a minimally invasive endoscopic procedure that incises a urethral stricture under direct vision using a cold knife or laser — immediately improving urinary flow and relieving the obstructive urinary symptoms caused by urethral narrowing, with no external incisions required.
Overview
Optical Urethrotomy (Direct Vision Internal Urethrotomy — DVIU) treats urethral stricture by passing a urethrotome along the urethra under direct telescopic vision to the stricture site, where a cold knife or laser incision is made through the full depth of the scarred tissue in the 12 o'clock position, allowing the stricture to spring open and the urethral lumen to widen immediately. The procedure is most effective for short (less than 1 to 1.5 cm) uncomplicated bulbar urethral strictures in patients who have not had prior urethrotomy — subsequent urethrotomies have progressively lower success rates and higher recurrence, making a single urethrotomy with subsequent urethroplasty the most evidence-based management pathway for recurrent strictures.
Types of Urethral Stricture Treatment
Urethral stricture management encompasses a spectrum from minimally invasive endoscopic to definitive reconstructive approaches.
- DVIU — Direct Vision Internal Urethrotomy (cold knife — standard first-line endoscopic treatment)
- Laser Urethrotomy (holmium or KTP laser incision with thermal coagulation benefit)
- Urethral Dilatation (progressive bougie dilatation — useful for meatal or short strictures)
- Self-Catheterisation Programme (clean intermittent catheterisation after urethrotomy to maintain patency)
- Urethroplasty (definitive surgical reconstruction — gold standard for recurrent strictures)
Risk Factors for Urethral Stricture Disease
These conditions cause the fibrotic scarring within the urethral lumen that produces stricture disease.
- Previous urethral instrumentation — urethral catheterisation, cystoscopy, or TURP
- Urethral trauma from perineal straddle injury or pelvic fracture
- Gonococcal urethritis causing pan-urethral stricture disease
- Lichen sclerosus (balanitis xerotica obliterans) causing meatal and penile strictures
- Previous hypospadias repair creating iatrogenic strictures
- Urethral radiotherapy causing progressive obliterative stricture disease
Urethral Stricture Symptoms
These symptoms indicate urethral stricture disease requiring uroflowmetry assessment and urethrographic imaging for characterisation before treatment.
- Reduced urinary stream — the most characteristic symptom
- Urinary hesitancy requiring straining or time to initiate voiding
- Post-void dribbling from bladder incomplete emptying
- Urinary frequency and urgency from chronic incomplete bladder emptying
- Recurrent urinary tract infections from stagnant residual urine
- Acute urinary retention requiring emergency catheterisation
- Split or spraying urinary stream
- Poor uroflowmetry maximum flow rate below 10 mL/s
Key Benefits
Discover the advantages of choosing our optical urethrotomy services.
Immediate improvement in urinary stream noticed from the day of catheter removal
Minimally invasive procedure with no external incisions or post-operative wound management
Same-day discharge with rapid return to normal activities within 24 to 48 hours
Endoscopic technique avoids the recovery associated with open urethral surgery
First-line surgical treatment for suitable short uncomplicated urethral strictures
Clinical Features
The technology, techniques and clinical approach behind our optical urethrotomy.
Flexible urethroscopy confirms exact stricture location before rigid urethrotome insertion
12 o'clock incision position avoids the ventral vascular spongiosum while fully incising the scar
Urethrotome advancement through the opened stricture confirms complete full-length incision
Urethral catheter placed under direct vision immediately after incision
Day-case procedure with same-day discharge and immediate flow improvement after catheter removal
Preparation Instructions
After Optical Urethrotomy, maintain the urethral catheter for the prescribed period without any attempt at early removal. After catheter removal, perform a voiding trial and confirm improved urinary flow. Some centres recommend clean intermittent self-catheterisation post-urethrotomy to maintain urethral patency — your urology nurse will provide training if this is recommended. Attend follow-up uroflowmetry at 3 and 6 months to monitor for recurrence. Contact your urology team promptly for any deterioration in urinary flow after initial improvement.
The Procedure
Step-by-step guide to what you can expect during your optical urethrotomy procedure.
Stricture Location and Urethroscopy Confirmation
The urologist advances a flexible urethroscope to the stricture under direct vision — confirming its exact location, length, and luminal diameter before proceeding with the urethrotomy to ensure the incision is placed at precisely the right site.
Positioning and Perineal Access
You are positioned in the lithotomy position with both legs supported and the perineum accessible. The penis and urethral meatus are cleaned and draped in a sterile manner for the endoscopic procedure.
Urethrotome Advancement to the Stricture
The rigid urethrotome with its integral illuminating telescope is passed through the urethra under direct vision until the narrowed stricture is visualised — the scope can be passed through or stopped at the proximal face of the stricture depending on its degree of narrowing.
Precise Incision at 12 O'Clock Position
A cold knife attached to the urethrotome is advanced and a single precise incision is made through the full depth of the stricture at the 12 o'clock position — this anatomical location avoids the spongy vascular tissue ventrally while cutting through the dorsal fibrotic scar.
Urethral Lumen Opening Confirmation
After the incision, the urethrotome is advanced through the now-widened stricture under direct vision — confirming the lumen has opened adequately and that the incision extends through the full extent of the scarred segment before catheter placement.
Urethral Catheter Placement and Discharge
A urethral catheter is passed under direct vision and left in place for 24 to 72 hours to maintain the opened lumen during early healing. Most patients are discharged the same day and notice a dramatically improved urinary stream immediately after catheter removal.
What to Expect
Optical Urethrotomy is performed under general or spinal anaesthesia and takes 20 to 30 minutes. A urethrotome is passed through the urethra under direct vision to the stricture, and a precisely placed incision is made through the stricture at 12 o'clock, allowing the lumen to open immediately. A urethral catheter is placed for 24 to 72 hours to maintain the opened lumen while early healing occurs. Most patients are discharged the same day after catheter insertion.
Frequently Asked Questions
Common questions about optical urethrotomy.
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