title: The serous-lined tunnel principle for urinary reconstruction: a more rational method.
abstract: OBJECTIVE
  To examine the feasibility of using the serous-lined-tunnel principle for orthotopic neobladder, continent cutaneous diversion and ureteric replacement by an intestinal segment. Patients and methods We created: (i) an orthotopic ileal neobladder using the serous-lined technique for antirefluxing ureteric implantation in 16 patients; (ii) a continent ileal pouch, adopting the principle for continent-valve construction and for ureteric implantation, in 10 patients (another patient with a failed continent valve underwent revision using an adaptation of this principle; and (iii) by applying the same principle an ileal ureter with a proximal antirefluxing mechanism was constructed in two patients (with lower ureteric cancer), and total replacement of the ureter by a tubular segment of the colon in association with a continent transverse colon pouch in one irradiated patient.
  
  
  RESULTS
  In all, 52 ureters implanted into ileal neobladders or continent pouches functioned well, with neither obstruction nor reflux; 11 continent valves functioned well with no incontinence. Two patients with ileal ureters showed no ileo-ureteric reflux and had less hydronephrosis than before surgery. The tubularized ureter provided a unidirectional flow into the pouch. Conclusion Ureteric reimplantation and continent valve formation achieved by adopting the serous-lined tunnel principle provided satisfactory results. The versatility of the principle is apparent in the present experience and the creative application of the serous-lined tunnel principle should be possible in urinary reconstruction.
authors: Department of Urology, Shinshu University School of Medicine, Matsumoto, Japan. kart@hsp.md.shinshu-u.ac.jp
authors: H
authors: H
authors: Kato
authors: H
authors: H
authors: Kiyokawa
authors: Y
authors: Y
authors: Igawa
authors: O
authors: O
authors: Nishizawa
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015653:Cystectomy / Q000379:methods; D018856:Cystitis, Interstitial / Q000601:surgery*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome; D001749:Urinary Bladder Neoplasms / Q000601:surgery*; D014547:Urinary Diversion / Q000379:methods*; D016476:Urinary Reservoirs, Continent / Q000473:pathology