Abstract
It is possible to study simultaneously the duodenal and gastric secretions by the following method: An Einhorn tube is passed into the duodenum of the patient, using the technic of Einhorn. Next morning a Rehfuss tube is inserted into the stomach of the patient. The patient is then given an Ewald test meal, and the gastric and duodenal contents removed simultaneously at varying intervals of time. The extractions are usually made every fifteen minutes for a period of two and a half or three hours. The gastric contents are analyzed for the acid secretions and the enzymes. The duodenal contents are analyzed for the various enzymes. The results are charted in the form of a curve.
A gastro-duodenal tube has been devised which obviates the necessity of passing two tubes. This tube is composed of two compartments—one ending ten inches above the duodenal opening. The tube bifurcates at its free end, and the openings are distinctly labelled G and D to indicate the opening leading to the stomach and to the duodenum.
The clinical and physiological results of the study of the gastric and duodenal secretions by this method will soon be reported.
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