Table 1

Intestinal luminal pH studies using radiotelemetry capsules in healthy volunteers

Small bowel pH
StudyPatientsProximalDistalCaecum/right colon pHLeft colon/ rectal pH
Watson, 19722 2 normals+7 misc. GI disorders5.5–7.06.5–7.55.5–7.56.5–7.5
Bown, 19743 11 normals5.97.56.07.0
Evans, 19884 66 normals6.67.56.47.1
Fallingborg, 19895 39 normals6.47.35.76.6
Raimundo, 19926 7 normals6.67.46.7N/A
Fallingborg, 19988 13 normals6.47.45.8N/A
Sasaki, 19979 4 normals6.87.76.87.2
Press, 199810 12 normals6.77.56.16.1
Ewe, 199911 13 normals6.57.66.27.0
  • N/A, data not available.