title: Effects of stents on lithotripsy of ureteral calculi: treatment results with 18,825 calculi using the Lithostar lithotriptor.
abstract: Between November 14, 1988 and August 1, 1993, 18,825 ureteral calculi were treated in the United States using 25 different mobile and 2 fixed base Siemens Lithostar lithotriptors. Lithotripsy was performed by 1,012 urologists using the modified Puigvert technique. The overall stone-free rate was 83.8% with a retreatment rate of 10.8%. The stone-free rate varied from 85.8% with stones of 10 mm. or smaller to 67.9% for stones larger than 20 mm. A ureteral stent or catheter was placed before lithotripsy in 19.3% of all treatments and 80.7% had in situ treatment without instrumentation. For calculi of any size, the use of ureteral stents or catheters had no effect on treatment outcome at any ureteral location.
authors.affiliation: Lithotripters, Inc., Fayetteville, North Carolina.
authors.forename: T B
authors.initials: TB
authors.lastname: Mobley
authors.forename: D A
authors.initials: DA
authors.lastname: Myers
authors.forename: J M
authors.initials: JM
authors.lastname: Jenkins
authors.forename: W B
authors.initials: WB
authors.lastname: Grine
authors.forename: W R
authors.initials: WR
authors.lastname: Jordan
mesh_terms: D000553:Ambulatory Care; D005260:Female; D006801:Humans; D008096:Lithotripsy / Q000295:instrumentation* / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D015607:Stents; D016896:Treatment Outcome; D014514:Ureteral Calculi / Q000453:epidemiology / Q000628:therapy*; D014546:Urinary Catheterization