In 1980, Mitrofanoff described a method of achieving continent urinary diversion by surgically closing the bladder neck and creating a continent catheterizable stoma from the appendix, which had been implanted in a non-refluxing manner into the bladder, or from a non-refluxing distal ureter. We describe a modification of the Mitrofanoff procedure for continent urinary diversion in 7 children in whom a standard Mitrofanoff procedure was not possible due to either body habitus or appendiceal anatomy. All 7 patients are continent both day and night. Four have required stomal revisions. Renal function has remained stable or improved in all patients. Although the revision rate was high, this modification of the Mitrofanoff principle has provided good long-term results in these patients and may be useful when patient's anatomy does not allow the creation of a standard appendicovesicostomy.
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