title: [Extracorporeal shock wave lithotripsy in situ for middle ureteral stones].
abstract: OBJECTIVE
  To report the experience with in situ ESWL for patients with middle ureteral stones.
  
  
  METHODS
  52 patients suffering from stones with an average 11 mm (range 5 - 20 mm) in dimension were treated using modified Puigvert technique in prone position via the entry route of lateral abdomen. The patients received 3,000 - 5,000 shocks per session at the power setting ranged from 2 to 7.
  
  
  RESULTS
  The stone free rate at 3 months was achieved in 96% patients retreatment was performed in 30% patients. The therapeutic results were calculated as efficiency quotient being 74%. No severe complications occurred in all patients.
  
  
  CONCLUSIONS
  In situ ESWL for middle ureteral stone is safe and effective and may serve as the first line therapy.
authors.affiliation: Department of Urology, Drum Tower Hospital, Nanjing University, Nanjing 210008.
authors.forename: X
authors.initials: X
authors.lastname: Sun
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: H
authors.initials: H
authors.lastname: Yu
authors.forename: Z
authors.initials: Z
authors.lastname: Sun
authors.forename: C
authors.initials: C
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008096:Lithotripsy; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014514:Ureteral Calculi / Q000000981:diagnostic imaging / Q000628:therapy*