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[Extra-corporeal lithotripsy (EDAP LT 01) in urinary lithiasis].
C Coulange1, F Hernandez, H Leremboure
1Service d'Urologie, Hôpital de la Timone, Marseille.
Annales D'Urologie
|January 1, 1989
Summary
Low-frequency extracorporeal lithotripsy for kidney and ureteric stones is effective, especially for smaller stones. Repeat treatments can improve outcomes, and low frequencies avoid observed scarring from high-frequency methods.
Area of Science:
- Urology
- Nephrology
Context:
- Extracorporeal lithotripsy (ECL) is a non-invasive treatment for kidney and ureteric stones.
- Previous studies have explored various parameters affecting ECL efficacy and patient outcomes.
Purpose:
- To evaluate the effectiveness and outcomes of low-frequency extracorporeal lithotripsy for renal and ureteric stones.
- To assess the impact of stone size and repeat treatments on success rates.
- To compare the incidence of scintigraphic scars between low and high-frequency lithotripsy.
Summary:
- A total of 526 extracorporeal lithotripsy procedures were performed for renal and ureteric stones.
- Low-frequency ECL (1.25-2.5 Hz) was administered without anesthesia in 85% of cases.
- Success rates were 55%, with partial results in 22.5% and failures in 22.5%. Best outcomes were observed for stones <20 mm. Repeat sessions improved results. Low-frequency ECL did not result in observed scintigraphic scars, unlike high-frequency methods.
Impact:
- Low-frequency extracorporeal lithotripsy offers a viable, often anesthesia-free treatment option for kidney and ureteric stones.
- Optimal patient selection (smaller stones) and consideration for repeat sessions can enhance treatment success.
- The findings suggest low-frequency ECL may be preferable to minimize potential renal scarring.