Trial Comparing Dual Probe Ultrasonic Lithotripsy to a Single Probe Ultrasonic Lithotripsy

Completed · Not applicable

Conditions studied: Kidney Stones

In brief

Percutaneous nephrolithotomy (PNL), in conjunction with intracorporeal lithotripsy, allows for the rapid removal of any kidney stone regardless of size. Currently, the choice of intracorporeal lithotripters includes ultrasonic, pneumatic, and combined ultrasonic/pneumatic energy sources. Recently, a novel dual probe design as been introduced by Cybersonics of Erie, Pennsylvania. This dual probe intracorporeal lithotrite is called the Cyberwand, and is composed of a fixed inner probe vibrating at an ultrasonic frequency with an outer probe vibrating at about 1,000 Hz. As this new design has the potential to revolutionize intracorporeal lithotripsy, we intend to compare this novel technology to currently available lithotripsy technology in a randomized clinical trial.

Key facts

Study ID

NCT00351351

Run by

Indiana Kidney Stone Institute

People needed

70

Starts

2006-07-01

Expected to finish

2008-05-01

Last updated by the study team

2017-03-30

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patient of Methodist Urology in Indianapolis, IN
• Undergoing percutaneous nephrolithotomy for calculi greater than 2 cm
• Age 18 years or older
• Stone easily visible/measurable on kidney, ureters and bladder (KUB) or computed tomography (CT) scan preoperatively

You may not qualify if…

• Radiolucent stones
• Size of largest stone less than 2 cm
• Pregnancy
• Inability to give informed consent
• Multiple percutaneous access anticipated
• Active urinary tract infection
• Recent (within last 3 months) extracorporeal shock wave lithotripsy

Where it is running

• Northwestern University Dept. of Urology — Chicago, Illinois, United States
• Methodist Hospital — Indianapolis, Indiana, United States
• John's Hopkins University — Baltimore, Maryland, United States
• Duke University — Durham, North Carolina, United States
• University of Wisconsin — Madison, Wisconsin, United States
• Vancouver Hospital — Vancouver, British Columbia, Canada
• University of Western Ontario - St. Joseph's Hospital — London, Ontario, Canada

Full record on ClinicalTrials.gov

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