Blow Out of a Colocystoplasty Loop Owing to Bladder Neck Obstruction

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Abstract
A case of blowout of the colonic segment of a colocystoplasty at its free end owing to late development of bladder neck obstruction is described [in a 20 yr/old man]. Prostatitis and secondary bladder neck contracture provided further hindrance to the already inefficient voiding mechanism and predisposed to the rupture of the decompensated bowel loop. This was an extreme example of proof that the colonic loop, except as an improved substitute for an ileal segment, cannot withstand high intraluminal presures generated in the presence of bladder outlet obstruction.