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Early experience with extracorporeal shockwave Dornier lithotriptor "compact"
S Hamdy1, D D Morehouse, H Laporte
1Department of Urology, Royal Victoria Hospital, McGill University, Montréal, Québec, Canada.
Journal of Endourology
|June 1, 1995
Summary
This study evaluated a new extracorporeal shockwave lithotripsy (SWL) device with integrated ultrasound. The Dornier Compact machine demonstrated effectiveness in fragmenting kidney stones, with mild side effects and good stone-free rates at two weeks.
Area of Science:
- Urology
- Medical Devices
- Nephrology
Background:
- Extracorporeal shockwave lithotripsy (SWL) is a common procedure for kidney stone treatment.
- Advancements in SWL technology aim to improve safety and efficacy.
- Integrated imaging systems enhance stone localization and treatment monitoring.
Purpose of the Study:
- To assess the safety and effectiveness of a new electromagnetic extracorporeal shockwave lithotripsy (SWL) device with integrated ultrasound imaging.
- To evaluate stone fragmentation and stone-free rates in patients treated with this novel SWL system.
Main Methods:
- A prospective study involving 88 patients (93 renal units) treated with the Dornier Compact SWL machine.
- 135 stones were treated, with continuous ultrasound monitoring for localization and safety.
- Patients received an average of 2409 shocks per session; follow-up included plain films at 2 weeks and 3 months.
Main Results:
- Complete stone fragmentation was achieved in 35 sessions (32.7%), with partial fragmentation in 63 sessions (59.4%).
- Early adverse effects were uncommon and mild.
- After 2 weeks, 33% of treated renal units were stone-free, while 67% had residual stones.
Conclusions:
- The new electromagnetic SWL device with integrated ultrasound is a safe and effective option for kidney stone treatment.
- Continuous ultrasound monitoring enhances the safety margin of SWL.
- Further research may be needed to optimize stone-free rates and long-term outcomes.