title: Prospective multicenter ProLase II clinical trial of neodymium:yttrium-aluminum-garnet laser prostatectomy.
abstract: OBJECTIVE
  To assess the clinical efficacy of neodymium:yttrium-aluminum-garnet (YAG) laser coagulation prostatectomy using a broad-angle, divergent-beam, side-firing fiber.
  
  
  METHODS
  Eighty adult men with voiding symptoms caused by benign prostatic hyperplasia were enrolled in a prospective multicenter study of free-beam neodymium:YAG laser prostatectomy performed with the ProLase II side-firing delivery fiber. Voiding outcomes were assessed at 3, 6, and 12 months postoperatively.
  
  
  RESULTS
  At 1-year follow-up, peak urinary flow rates were increased by 105%, postvoid residual urine volumes had decreased by 38%, and the AUA symptom index had decreased by 60%. Serious treatment-related complications occurred in 3 of 80 patients (3.8%). The reoperation rate through 1-year follow-up was 2.7%.
  
  
  CONCLUSIONS
  Neodymium:YAG laser prostatectomy performed with the ProLase II delivery fiber has proven safe and efficacious with durable results through 1 year in the relief of symptomatic bladder outlet obstruction due to benign prostatic hyperplasia.
authors.affiliation: Palo Alto Veterans Affairs Medical Center, California 94304, USA.
authors.forename: J N
authors.initials: JN
authors.lastname: Kabalin
authors.forename: H S
authors.initials: HS
authors.lastname: Gill
authors.forename: G E
authors.initials: GE
authors.lastname: Leach
authors.forename: G W
authors.initials: GW
authors.lastname: Bowers
authors.forename: T
authors.initials: T
authors.lastname: Nill
authors.forename: T W
authors.initials: TW
authors.lastname: Konowalchuk
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011468:Prostatectomy / Q000009:adverse effects; D011470:Prostatic Hyperplasia / Q000601:surgery*; D014563:Urodynamics