Novel Technique for Fragment Removal After Percutaneous Management of Large-Volume Neobladder Calculi

Urology. 2012 Aug;80(2):474-6. doi: 10.1016/j.urology.2012.05.009.


Objective: To describe a novel method for fragment evacuation after percutaneous lithotripsy of neobladder calculi.

Methods: The technique was developed using a Urovac bladder evacuator, which was attached to a standard 30F Amplatz working sheath.

Results: The attachment of the Urovac evacuator to the Amplatz sheath rapidly evacuated large quantities of stone material. Careful attention should be paid to maintaining low-pressure irrigation by ensuring the bladder is not overly full and the Urovac device is not vigorously manipulated, to minimize the likelihood of bladder injury.

Conclusion: Percutaneous ultrasonic/hydraulic lithotripsy for large-volume neobladder calculi often results in a substantial burden of stone fragments that can be difficult to clear using standard techniques. Attaching a Urovac bladder evacuator to the 30F Amplatz sheath can simplify the management of this task.

MeSH terms

  • Humans
  • Lithotripsy / methods*
  • Postoperative Complications / pathology
  • Postoperative Complications / therapy*
  • Urinary Bladder Calculi / pathology
  • Urinary Bladder Calculi / therapy*
  • Urinary Diversion*
  • Urinary Reservoirs, Continent*
  • Urologic Surgical Procedures / instrumentation
  • Urologic Surgical Procedures / methods