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Urolithiasis update: clinical experience with the Swiss LithoClast
J Schock1, R I Barsky, J R Pietras
1University of Medicine and Dentistry, New Jersey School of Osteopathic Medicine, Kennedy Memorial Hospitals-University Medical Center, Stratford, New Jersey, USA. galit7@aol.com
The Journal of the American Osteopathic Association
|August 31, 2001
Summary
The EMS Swiss LithoClast pneumatic lithotriptor effectively fragments 91% of ureteral stones. This study found the device safe and satisfactory for treating middle and distal ureteral calculi.
Area of Science:
- Urology
- Medical Devices
- Nephrolithiasis Management
Background:
- Ureteral calculi (stones) are a common urological condition.
- Intracorporeal lithotripsy is a standard treatment for ureteral stones.
- Various lithotripsy modalities exist, each with unique mechanisms and outcomes.
Purpose of the Study:
- To evaluate the initial clinical experience with the EMS Swiss LithoClast pneumatic lithotriptor.
- To assess the efficacy and safety of this device in managing middle and distal ureteral calculi.
- To compare intracorporeal lithotripsy modalities through a literature review.
Main Methods:
- Retrospective analysis of 11 patients treated with the Swiss LithoClast and a rigid mini-ureteroscope.
- Patients had either distal (7) or midureteral (4) calculi.
- Literature review comparing different intracorporeal lithotripsy methods.
Main Results:
- Successful fragmentation of 91% of calculi, irrespective of stone composition.
- One case of complete fragmentation failure due to retrograde stone displacement.
- No intraoperative morbidity or long-term complications observed.
- 91% patient satisfaction with the procedure and pain relief.
Conclusions:
- The EMS Swiss LithoClast pneumatic lithotriptor is a safe and effective option for middle and distal ureteral calculi.
- Potential risk of retrograde stone migration exists due to the device's ballistic force.
- Patient-reported outcomes, including satisfaction and pain relief, were high.