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The urological evaluation and management of patients with congenital lower urinary tract anomalies prior to renal transplantation.

Previously, patients with chronic renal failure and major congenital anomalies of the lower urinary tract (often with urinary diversion) were thought to be poor candidates for renal transplantation. Pre-transplant evaluation and possible urinary reconstruction are essential in these patients to achieve successful renal transplantation. Ten patients, including 7 adults, presented with congenital anomalies of the lower urinary tract that were responsible for renal failure. Percutaneous suprapubic cystostomy aided in the assessment of bladder function. Undiagnosed posterior urethral valves were found in 2 adults. Patients with exstrophy, neurogenic bladder or a contracted bladder (with augmentation cystoplasty) had urinary drainage into the bladder at the time of renal transplantation. Sometimes an imperfect bladder can be used for urinary drainage with transplantation but, otherwise, intestinal conduits are still a viable alternative.

Adult↗

Appendicovesicostomy: a new technique for bladder diversion during reconstruction of cloacal exstrophy.

Urinary tract diversion in the reconstruction of cloacal exstrophy presents a difficult problem. Many methods have been used, but none has been found to be ideal. We describe a simple technique that incorporates the ileocecal plate in the bladder augmentation, and uses the appendix as a conduit for urinary diversion. This technique offers the advantages of primary closure, effective urinary drainage without tubes, and simplicity of bowel reconstruction with preservation of maximal absorptive surface.

Appendix↗

[A case of rectal bladder construction by Duhamel procedure for vesical extrophy].

A 4 year old boy, who underwent 2 times of unsuccessful primary closure of the extrophied bladder at 7 days and 5 months after birth, was treated with construction of a rectal bladder with sigmoid-pull through by Duhamel procedure. Vas deference, seminal vesicles and prostate were not found at the cystectomy operation. Epispadias urethral mucosa was removed and phalloplasty was performed using the ventral hooded foreskin. The results were cosmetically and functionally excellent. He could keep continence and his upper urinary tract was normal at 6 months after the operation.

Bladder Exstrophy↗