[Past and present aspects of diarrheal disease in childhood. Clinical study and treatment (author's transl)].

The etiologic and pathophysiologic findings described in the first part of this paper have important consequences: The recognition of the specific etiology of diarrhea requires new laboratory methods: most of these, however, are technically easy to perform and do not require a large laboratory. A long-ranging consequence of this changed concept is a well-founded modification of therapy. The most important discovery was, that in a well balanced glucose electrolyte solution sodium and glucose enhance their absorption mutually and increase the absorption of water by solvent drag. Since in most acute diarrheas the mechanisms of absorption of glucose and electrolytes are retained this mechanism can be utilized for fast oral rehydration and reinstitution of normal intestinal homeostasis. Prompt institution of a diet consisting of the previously mentioned glucose-electrolyte solution usually prevents severe dehydration and the need for stationary treatment. The elimination of lactose and long chain fatty acids from the diet prevents continuation of the pathologic osmotic and chemical conditions in the intestine. Antibiotics are not indicated in acute diarrhea with the exception of diarrhea caused by enteroinvasive E. Coli or Shigella, in the case of Salmonella-gastroenteritis even contraindicated. Further research concentrates on the development of drugs for neutralisation of E. Coli enterotoxin and the prevention of diarrheas by development of effective vaccines.