title: Extracorporeal shockwave lithotripsy using ultrasonic imaging: urologists' experience.
abstract: The EDAP LT.01 is a second generation shockwave lithotripter which employs ultrasound imaging and piezoelectric shockwave generation. We describe the first 12 months of its use in the treatment of urinary calculi by urologists with no previous practical experience of ultrasonography. A total of 406 calculi (359 renal and 47 ureteric) in 317 patients were treated. Analgesia or sedation was not routinely used and 59% of all treatments were performed as outpatient procedures. The clearance rate of renal calculi smaller than 1 cm was 81%, while that of calculi larger than 3 cm was 80% (mean clearance 77.5%). Lithotripsy of ureteric calculi following retrograde manipulation to a renal site resulted in 94.4% clearance compared with 39% for those treated at a ureteric site; 93% of 684 lithotripsy treatments were either painless or caused only mild pain. Our experience with imaging and treating urinary calculi with the EDAP LT.01 lithotripter has been excellent. Patients are treated effectively and inexpensively as out-patients without analgesia or sedation.
authors.affiliation: National Stone Centre, Meath Hospital, Dublin, Ireland.
authors.forename: E A
authors.initials: EA
authors.lastname: Kiely
authors.forename: P C
authors.initials: PC
authors.lastname: Ryan
authors.forename: T E
authors.initials: TE
authors.lastname: McDermott
authors.forename: M R
authors.initials: MR
authors.lastname: Butler
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000553:Ambulatory Care; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008096:Lithotripsy / Q000009:adverse effects / Q000379:methods; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D014463:Ultrasonography; D014517:Ureteral Obstruction / Q000209:etiology; D014545:Urinary Calculi / Q000175:diagnosis / Q000473:pathology / Q000628:therapy*; D014551:Urinary Tract / Q000473:pathology