Use of an isolated appendix on a vascularized pedicle as a catheterizable route of access to the bladder from the skin. SEE ALSO: Mitrofanoff principle. [eppendico- + L. vesica, bladder, + G. stoma, mouth]
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ap·pen·di·co·ves·i·cos·to·my (ə-pen″dĭ-ko-ves″ĭ-kosґtə-me) surgical transference of the isolated appendix so that it can be used as a conduit for urinary diversion from the bladder to the skin in children with cloacal exstrophy or neurogenic bladder, making a route for insertion of a catheter. Called also Mitrofanoff procedure.Medical dictionary. 2011.