Revision sheet

Optical urethrotomy (DVIU)

6 steps, each one the authored title and caption from the interactive animation, with the frame captured from that step. Read it before the case, or print it and work through the steps in order.

Teaching only, not for diagnosis or treatment decisions. The text on this sheet is the animation's own step copy, reproduced verbatim.

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UrOops3D · UroRef · © Nity G

  1. 01

    Cystoscopy to the stricture

    Optical urethrotomy (DVIU). Step 1: Cystoscopy to the stricture. Captured frame from the interactive animation.
    • The 30-degree lens runs from the meatus over the bulbar curve until the lumen pinholes.
    • The scope stops there: nothing crosses a stricture blind.
  2. 02

    Wire through the lumen

    Optical urethrotomy (DVIU). Step 2: Wire through the lumen. Captured frame from the interactive animation.
    • A guidewire passes through the pinhole under vision and coils in the bladder.
    • Everything that follows is railroaded over it.
  3. 03

    Cold knife at 12 o’clock

    Optical urethrotomy (DVIU). Step 3: Cold knife at 12 o’clock. Captured frame from the interactive animation.
    • The Sachse blade divides the fibrotic ring at 12 o’clock, where the spongiosum is thinnest and the lateral vessels furthest away.
  4. 04

    Open the lumen

    Optical urethrotomy (DVIU). Step 4: Open the lumen. Captured frame from the interactive animation.
    • The cut is deepened until the ring springs open and the scope passes freely into the bladder to check the whole urethra.
  5. 05

    Catheter

    Optical urethrotomy (DVIU). Step 5: Catheter. Captured frame from the interactive animation.
    • A catheter is railroaded over the wire and the balloon is inflated in the bladder.
    • The catheter drains and splints the incised urethra; the balloon retains it, rather than tamponading the urethral cut.
  6. 06

    Trial without catheter

    Optical urethrotomy (DVIU). Step 6: Trial without catheter. Captured frame from the interactive animation.
    • Catheter out early, the first void timed and measured.
    • Flow rates anchor follow-up, and the recurrence conversation happened at consent.

Derived from DviuScene.tsx at build time: every step title and caption above is the authored ProcedureDef text, reproduced verbatim, and this page shares its readable-points renderer with the animation itself. 6 of 6 steps have a captured frame.

Text fingerprint a4102a275fbde087. A caption edit without a re-capture fails the production check, so the sheet and the animation cannot drift apart silently.