A method of measuring acidity and protein digestion within the human stomach

Conclusions

• 1. A method of obtaining acid values in the antral region of the stomach is described.

• 2. A method of obtaining an index of protein digestion in the antrum of the stomach is described.

• 3. The pH of the antral content is lower than that of the stomach content as a whole.

• 4. No constant difference exists between the pH of antral content and that obtained by aspiration.

• 5. Gastric electrode pH values are usually lower than those of aspirated material.

• 6. Antral pH readings give a better index of local protein digestion than those of aspirated material.

• 7. Patients on a supposedly accurate neutralization therapy show active digestion of egg white in the antral region.