title: A randomized controlled trial to assess the incidence of new onset hypertension in patients after shock wave lithotripsy for asymptomatic renal calculi.
abstract: OBJECTIVE
  To answer the question of whether extracorporeal shock wave lithotripsy (ESWL*) induces hypertension, a prospective, randomized controlled trial of normotensive patients with asymptomatic renal calculi was designed.
  
  
  METHODS
  Patients were randomized to receive immediate ESWL versus observation, reserving ESWL for the onset of symptoms. The rates of new onset hypertension were evaluated for both groups.
  
  
  RESULTS
  There was no observed difference in the incidence of hypertension between the treatment and observation groups.
  
  
  CONCLUSIONS
  The risk of hypertension in patients undergoing ESWL therapy is similar to that of a control cohort of initially observed asymptomatic patients.
authors.affiliation: Division of Urology and University of Toronto Urolithiasis Program, University of Toronto, Ontario, Canada.
authors.forename: M A
authors.initials: MA
authors.lastname: Jewett
authors.forename: C
authors.initials: C
authors.lastname: Bombardier
authors.forename: A G
authors.initials: AG
authors.lastname: Logan
authors.forename: K E
authors.initials: KE
authors.lastname: Psihramis
authors.forename: T
authors.initials: T
authors.lastname: Wesley-James
authors.forename: J E
authors.initials: JE
authors.lastname: Mahoney
authors.forename: J J
authors.initials: JJ
authors.lastname: Luymes
authors.forename: D
authors.initials: D
authors.lastname: Ibañez
authors.forename: M R
authors.initials: MR
authors.lastname: Ryan
authors.forename: R J
authors.initials: RJ
authors.lastname: Honey
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000209:etiology*; D015994:Incidence; D007669:Kidney Calculi / Q000628:therapy*; D008096:Lithotripsy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies