Cystoplasty by regeneration of the bladder.

Herein we describe a new method for cystoplasty, making use of the regenerating ability of the bladder. The contracted bladder is opened with a crucial incision and enlarged by placing thin paper covered with liquid synthetic resin (nobecutane) like a cap over the opened bladder tissue. Within 3 to 4 weeks granulated tissue completely covers the artificial cap, which is then removed transurethrally. Thereafter, the bladder regenerates on its own. The operation has been done at our hospital from 1970 to 1975 on 13 patients with contracted bladders owing to various pathologic conditions. Excellent results have been obtained on 11 patients with tuberculous contracted bladders. These 11 patients have regained normal bladder capacity and are able to void normally through the urethra. The technique has not been effective in 2 patients with interstitial cystitis, caused by generalized collagen disease in 1.