[Paediatric management of acute and chronic renal insufficiency (author's transl)].

Acute or chronic renal insufficiency in children is not so rare. Causes are prerenal, renal or postrenal disturbances of kidney function. The dysregulation of the homoeostatic balance of the intra- and extracellular fluid composition presents a picture of a life-threatening illness. By dietetic and medicamental correction of the disturbances uremic complications can be prevented. This conservative treatment is presented.