title: Treatment of bladder stones without associated prostate surgery: results of a prospective study.
abstract: OBJECTIVE
  To assess the effectiveness of noninvasive bladder lithiasis treatment without associated prostate surgery to know whether bladder lithiasis is an absolute indication for prostate surgery.
  
  
  METHODS
  Fifty patients with bladder lithiasis were entered in a prospective trial and were treated with extracorporeal shock wave lithotripsy if lithiasis was smaller than 4 cm2. Independent of the presence or absence of bladder outlet obstruction, in no case was prostate surgery associated. The variables studied were the effectiveness of the treatment, changes in the International Prostate Symptom Score (IPSS), and the subsequent need for desobstructive prostate surgery. The statistical study was performed using Student's t test and the proportional hazards model.
  
  
  RESULTS
  Bladder lithiasis was successfully eliminated in 93% of the cases (in 77% of them with a single extracorporeal shock wave lithotripsy session). The mean IPSS decreased from 17.7 to 9.7 points (P = 0.0001) after lithiasis elimination. After a mean follow-up of 22 months, a mere 8% of the patients needed subsequent prostate surgery because their IPSS had increased to 20 points or more. The sole prognostic factor for the need for ensuing prostate surgery was the pretreatment IPSS score (P = 0.042).
  
  
  CONCLUSIONS
  Noninvasive management of bladder lithiasis with no associated prostate surgery is highly efficient and results in marked symptomatic improvement. Furthermore, the number of patients needing subsequent prostate surgery was very low at mid-term follow-up. Because of all of the above, the existence of bladder lithiasis is not an absolute indication for prostate surgery.
authors.affiliation: Department of Urology, Fundació Puigvert, Barcelona, Spain. fmillan@menta.net
authors.forename: F
authors.initials: F
authors.lastname: Millán-Rodríguez
authors.forename: F
authors.initials: F
authors.lastname: Izquierdo-Latorre
authors.forename: M
authors.initials: M
authors.lastname: Montlleó-González
authors.forename: F
authors.initials: F
authors.lastname: Rousaud-Barón
authors.forename: A
authors.initials: A
authors.lastname: Rousaud-Barón
authors.forename: H
authors.initials: H
authors.lastname: Villavicencio-Mavrich
mesh_terms: D000368:Aged; D006801:Humans; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011467:Prostate / Q000601:surgery; D011468:Prostatectomy; D001744:Urinary Bladder Calculi / Q000209:etiology / Q000628:therapy*; D001748:Urinary Bladder Neck Obstruction / Q000150:complications / Q000601:surgery