[The use of parietal pH-metry in the diagnosis of intestinal diseases].

Parietal measurements of pH values in patients with various intestinal diseases and in normal subjects have revealed that alkaline medium with gradual elevation of the values in the caudal direction is characteristics of the normal large intestine; acid pH values were registered in patients with lactase insufficiency, nonspecific ulcerative colitis, in contrast to those with post-dysentery colitis and tumors of the large intestine. Lactulose and sodium sulfate were found the factors that significantly influence the large intestine parietal pH values, the effects of wheat bran were lower; magnesium sulfate and sodium hydrocarbonate mineral water with medium mineral content had no effect on parietal pH values.