Outpatient—Based Extracorporeal Shock Wave Lithotripsy using EDAP LT — 01

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Abstract
Between March 1988 and March 1990, 751 patients were treated with shock wave lithotripsy using EDAP LT — 01. Six hundred and eight patients had renal stones while 143 patients had stones located in the ureter. Because of difficulties in locating ureteric stones with ultrasound 92 % of them were pushed back to the kidney before treatment. The mean stone size was 10 mm, range 4 — 30 mm. Patients with stones bigger than 15 mm had a double J-stent placed before treatment. The mean number of treatments per patient was 1.7 (range 1 — 8). Sixtysix per cent of the patients with renal stones were completely stone-free after ESWL monotherapy. Another 5% became stone-free after auxiliary procedures in the ureter, because of retained fragments. Fragments equal to or less than 4 mm were retained in 14% of the patients with the renal stones. Of the patients with ureteric stones mobilised back to the kidney 95% were rendered stone-free after ESWL, Most patients experienced no or very little discomfort during the treatment and only 29% of them received analgesics. General or epidural anaesthesia was given to 1% of the patients. Because of the low demand for analgesia or anaesthesia, 99% of the patients with renal stones were treated on an outpatient basis. During the second year, 74% of the patients with ureteric stones were treated on an outpatient basis.