A new approach to orthotopic bladder replacement using the transplanted bowel segment.
OBJECTIVE
When constructing an orthotopic neobladder, a short colonic mesentery may make the operation difficult. We have developed a new technique to autotransplant a free segment of intestine into the pelvis to augment the bladder.


METHODS
In this animal feasibility study, we used eight female dogs to perform orthotopic bladder replacement using a transplanted bowel segment. A segment of bowel was transected and revascularized between the ileal artery of the reservoir and the internal iliac artery in the end-to-end fashion.


RESULTS
Follow-up studies revealed that the bladder autoaugmentation using the transplanted bowel segment was functional and free of leakage.


CONCLUSIONS
Our work in dogs demonstrates that the use of an autotransplanted segment of intestine appears to be feasible for augmenting the bladder in those cases where mechanical difficulty arises in anastomosing the urinary reservoir to the urethra. This procedure merits clinical evaluation in cases that present difficulty for completing orthotopic neobladder.
Yamanaka
N
N
Division of Urology, Shinko Hospital, Kobe, Japan.
Kimura
K
K
Fujisawa
M
M
Ueno
K
K
Shimogaki
H
H
Kamidono
S
S
D000818:Animals; D015653:Cystectomy; D004285:Dogs; D005240:Feasibility Studies; D005260:Female; D006085:Graft Survival; D007082:Ileum / Q000637:transplantation*; D023421:Models, Animal; D011859:Radiography; D016378:Tissue Transplantation / Q000379:methods; D001743:Urinary Bladder / Q000000981:diagnostic imaging / Q000601:surgery*; D014547:Urinary Diversion / Q000379:methods*