title: Changes in pressure-flow parameters in patients treated with transurethral microwave thermotherapy.
abstract: OBJECTIVE
  We document changes in pressure-flow study parameters in patients treated by transurethral microwave thermotherapy.
  
  
  METHODS
  Pressure-flow study tracings before and after therapy from 75 patients with benign prostatic hyperplasia were analyzed. Patients were stratified according to the predominant type of obstruction at screening (constrictive or obstructive).
  
  
  RESULTS
  An improvement in Madsen score and flow rates was noted at 6 months in both groups. In contrast to compressive obstruction patients, however, those with constrictive obstruction also showed significant changes in pressure-flow study parameters, including detrusor pressure at maximum flow, maximum flow rate and urethral resistance factor.
  
  
  CONCLUSIONS
  Patients with predominantly constrictive obstruction are the best candidates for microwave thermotherapy.
authors.affiliation: Department of Urology, Nijmegen University Hospital, The Netherlands.
authors.forename: J J
authors.initials: JJ
authors.lastname: de la Rosette
authors.forename: A
authors.initials: A
authors.lastname: Tubaro
authors.forename: A
authors.initials: A
authors.lastname: Trucchi
authors.forename: S S
authors.initials: SS
authors.lastname: Carter
authors.forename: K
authors.initials: K
authors.lastname: Höfner
mesh_terms: D006801:Humans; D006979:Hyperthermia, Induced; D008297:Male; D008872:Microwaves / Q000627:therapeutic use*; D011312:Pressure; D011470:Prostatic Hyperplasia / Q000150:complications / Q000503:physiopathology / Q000628:therapy*; D014524:Urethral Obstruction / Q000209:etiology / Q000503:physiopathology / Q000628:therapy*; D014563:Urodynamics