Related Experiment Videos
Extracorporeal shockwave lithotripsy using ultrasonic imaging: urologists' experience
E A Kiely1, P C Ryan, T E McDermott
1National Stone Centre, Meath Hospital, Dublin, Ireland.
British Journal of Urology
|July 1, 1989
Summary
The EDAP LT.01 lithotripter effectively treats urinary stones using ultrasound imaging. Most patients experienced mild pain and were treated as outpatients without sedation, demonstrating cost-effective stone removal.
Area of Science:
- Urology
- Medical Devices
- Nephrology
Background:
- The EDAP LT.01 is a second-generation shockwave lithotripter.
- It utilizes ultrasound imaging and piezoelectric shockwave generation for urinary stone treatment.
Purpose of the Study:
- To evaluate the initial 12 months of clinical experience with the EDAP LT.01 lithotripter.
- To assess its efficacy and patient experience in treating urinary calculi by urologists new to ultrasonography.
Main Methods:
- Prospective analysis of 406 urinary calculi (359 renal, 47 ureteric) in 317 patients treated with the EDAP LT.01.
- Urologists with no prior ultrasonography experience performed the procedures.
- Data collected on stone clearance rates, pain levels, and use of analgesia/sedation.
Main Results:
- High clearance rates were observed: 81% for renal calculi <1 cm, 80% for calculi >3 cm, and 77.5% overall mean clearance.
- Ureteric calculi manipulated to the renal site showed 94.4% clearance versus 39% treated at the ureteric site.
- 59% of treatments were outpatient procedures, with 93% of 684 treatments being painless or causing mild pain.
Conclusions:
- The EDAP LT.01 facilitates effective and inexpensive outpatient treatment of urinary calculi.
- Excellent patient outcomes were achieved, even with limited prior ultrasonography experience.
- The device offers a favorable option for urinary stone management without routine analgesia or sedation.