抄録
Eighteen men and 23 women outpatints' gastric mucosal pH was measured under endoscopy, in order to know how the site of pH glass electrode influences the result of pH monitoring for 24 hours.
The mucosal pH of antrum was significantly higher than other sites on anterior and posterior wall. It was also higher than that of middle body and fornix on greater curvature (p<0.01) . It had no difference on lessor curvature. The mucosal pH of duodenum was significantly higher than any sites of stomach. It was also higher on middle esophagus than lower esophagus. The pH value of gastric juice was 2.59±2.00, and that of duodenal juice 6.74±0.59.
These results show possibility of a difference of pH value according to the location of the pH glass electrode, when 24 hour pH monitoring is done. And any of the pH value of mucosa in esophagus, stomach, duodenum and juices did not show more than 7.8.
