title: Core-through urethrotomy using the neodymium: YAG laser for obliterative urethral strictures after traumatic urethral disruption and/or distraction defects: long-term outcome.
abstract: OBJECTIVE
  We assessed the feasibility, efficacy and long-term outcome of neodymium (Nd):YAG laser core-through urethrotomy for posttraumatic urethral stricture.
  
  
  METHODS
  Between May 1997 and April 2000, 65 patients 5 to 62 years old underwent laser core-through urethrotomy for posttraumatic urethral stricture. Most patients had been involved in a motor vehicle accident but 8 and 3 sustained trauma after tractor injury and a railroad accident, respectively. All patients underwent suprapubic cystostomy formation and 18 had previously undergone anastomotic urethroplasty, railroad or attempted cold knife core-through urethrotomy. Mean stricture length was 2.2 cm. on bi-directional uroradiography and endoscopy. All strictures were in the bulbomembranous urethra except 3, which were prostatic-supraprostatic. The procedure was technically unsuccessful in 4 cases. Core-through urethrotomy was performed using Nd:YAG a 600 mu. contact bare fiber at 15 to 20 W. on an outpatient basis. Catheter removal and voiding cystourethrography were performed at 6 weeks. Uroflowmetry and urethroscopy were done 3 months after urethral catheter removal. Followup was 9 to 44 months.
  
  
  RESULTS
  Nd:YAG laser core-through urethrotomy was performed on an outpatient basis successfully in all except 4 cases without any intraoperative or postoperative complications. Blood transfusion was not required. Although most patients were symptom-free, a few underwent initial optical internal urethrotomy and/or endoscopic dilation before the stricture became stable. The urethral lumen was obliterated again in 2 cases.
  
  
  CONCLUSIONS
  Nd:YAG laser core-through urethrotomy is feasible and effective with good long-term results for posttraumatic urethral stricture.
authors.affiliation: Department of Urology, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: P N
authors.initials: PN
authors.lastname: Dogra
authors.forename: G
authors.initials: G
authors.lastname: Nabi
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005240:Feasibility Studies; D006801:Humans; D053685:Laser Therapy; D008875:Middle Aged; D011859:Radiography; D016896:Treatment Outcome; D014521:Urethra / Q000293:injuries* / Q000601:surgery*; D014525:Urethral Stricture / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*