[Evaluation of the intensity of the duodenogastric reflux based on the alkaline phosphatase and trypsin activities in the stomach contents].

Alkaline phosphatase and trypsin activities were measured in the gastric contents of patients with chronic gastritis with visually fixed duodenogastric reflux and without reflux. The authors discuss the advantages of a comparative approach to the enzymatic assessment of duodenogastric reflux presence, intensity, and length.