Bulking agents
Macroplastique
- Find lateral portion of urethra, position needle out and insert into midurethra at 45 degrees
- Inject and visualize submucosal wheal, should not see extravasation, should see good coaptation
- Repeat on contralateral side
- Test of success: red rubber catheter placed in urethra does not fall out spontaneously
Bulkamid
- Place bulkamid cystoscope into bladder and exam urethra
- Identify point of urethra where needle can be inserted to black line without buttonholing urethra into bladder
- Pick a clock point (130, 430, 730, or 1030) and move entire cystoscope to insert needle - move as a unit to keep needle at same submucosal level, torquing scope will drive needle deeper into tissue (not desired)
- Inject bulkamid agent, should see coaptation of mucosa
- Repeat up to 4x total, should see coaptation completely
- Tip: do not place catheter as this will mold the Bulkamid (undesired)