Histologic study of kidneys drained by short ileal conduits in dogs

The ileal conduit with a refluxing ureteroileal anastomosis is considered by many to be a factor in the development of pyelonephritis and renal deterioration in patients so diverted. This opinion is supported by previous experimental work utilizing dogs. A histologic study of dog kidneys drained by a short ileal conduit is presented which shows an incidence of pyelonephritis of 17.6 per cent. Pyelonephritis occurred only when obstruction was present.