Using one or two capsules with different frequency, the author studied the relationships between the pH values of the stomach and the duodenal bulb and between the remnant stomach and the efferent-loop. The subjects were 116 cases: 7 healthy, 55 with gastro-duodenal diseases, 54 casesafter partial gastrectomy (including 11 cases of stomal ulcer).
The results obtained were as follows:
1) Generally, in the fasting state, the gastric pH was stable, and, on the other hand, the duodenal bulbar pH fluctuated remarkably and periodically.
2) In the healthy person, the gastric pH was around 1.8, and the bulbar pH descended from the value around 7.0, as a base line, to the value 2.5, as the lowest line, fluctuating about 9 times during 10 minutes.
3) In the duodenal ulcer cases, the average of the gastric pH was 1.5, and the bulbar pH from 6.3 to 2.0 The pH fluctuation curve in these cases was quite defferent from that of the healthy.
4) The pH curves of the bulbus were classified into 3 types: The lst type represents a sharp fluctuation, the 2nd type a gradual fluctuation, the 3rd typea slight fluctuation or no fluctuation.The lst type in all the healthy, the lst and the 2nd types in most of the gastric ulcer cases, the 2nd and the 3rd types were found in most of the duodenal ulcer cases.
5) The duration in which the bulbar pH remained below 4.0 during 10 minutes was summed (ΣT).The lower the gastric pH was, the lower the bulbar pH was, and the ΣT also became longer.There was no fluctuation of the bulbar pH when the gastric pH was above 4.0.
6) The pH in the post-bulbar part was stable with no relation to the gastric pH value.
7) The pH in the most remnant stomach 3 months after gastrectomy, were below 3.1 or above 5.0.
8) The in fluence of the remnant stomach content upon the pH values in the effeerent loop was found from the stoma to the part of about 5 cm distance.
9) In 10 of the 11 cases of the stomal ulcer, the pH of the remnant stomach were below 2.0.
10) All the cases with stomal ulcer were diagnosed by gastro-fiberscope.
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