[Use of intragastric pH measurement in stomach cancer].

The method of intragastric pH-metry was used to assess the acid production in the stomach in 35 patients with gastric tumors. All patients with malignant tumors were divided into two groups with respect to site: tumors in the cardia and corpus (18 cases) and tumors in the antrum and pylorus (17 cases). Continuous low-rate production of acid was registered. For cardial and corporal tumors, histamine-refractory anacidity predominated, while continuous low- and medium-rate production of acid was observed in cases of pylorantral tumors. The procedure proved especially effective in determination of gastric secretion in patients with stomach tumors because due to its application it was found that hydrochloric acid secretion continued under the conditions when other methods failed to detect it.