Category: Other, Miscellaneous

VS4-6 - Ultrasonic Lithotripsy of Prostatic Urethral Stones

Fri, Sep 21
2:00 PM - 4:00 PM

Introduction & Objective :

The patient is a 51-year-old male with neurogenic bladder secondary to spina bifida. His bladder had been managed with clean intermittent catheterization (CIC) his entire life. He had been unable to perform CIC for several months, so his urologist placed a suprapubic tube. Computed tomography scan obtained during a hospitalization for urosepsis revealed several large stones in the prostatic urethra. These stones were thought to be obstructing entrance of catheters into the patient’s bladder. The patient desired to resume CIC, so he was taken to the operating room for treatment of these prostatic urethral stones.

Methods :

Given the large stone burden, the objective was to treat these stones using ultrasonic lithotripsy rather than laser lithotripsy. In the operating room, the rigid nephroscope was blindly advanced to the bulbar urethra using the obturator. Ultrasonic lithotripsy was performed using the Boston Scientific LithoclastTM.

Results :

All stones were cleared without difficulty. The patient was admitted overnight for observation and discharged in the morning with his foley catheter in place. There were no post-operative complications or re-admissions. At 4 weeks, his foley catheter was removed; however, he was still unable to perform CIC. The patient was offered a continent catheterizable stoma, but he declined. Instead, he will undergo transurethral resection of the prostate in the near future. The goal will be to create more continuous anatomy through which catheters can traverse without the aid of a wire or direct visualization.

Conclusions : Ultrasound lithotripsy is feasible for use in the prostatic urethra. In this case, it facilitated complete and efficient of several large prostatic urethral stones.

Anand Mohapatra

Resident Physician
Department of Urology, University of Pittsburgh
Pittsburgh, Pennsylvania

Michelle Semins

Endourology Faculty
Pittsburgh, Pennsylvania