Table 3

Intestinal luminal pH, measured using radiotelemetry capsules, in patients with ulcerative colitis (UC)

Small bowel pH
StudyPatients with UCProximalDistalCaecum/right colon pHLeft colon/ rectal pH
Raimundo, 19926 7 active6.17.24.7N/A
6 inactive5.9–6.66.9–7.44.9–5.5N/A
Fallingborg, 19937 3 activeNormal rangeNormal rangeNormal rangeN/A
3 very activeNormal rangeNormal range2.3–3.4N/A
Press, 199810 7 active6.88.27.26.8
4 inactive6.67.96.56.5
Ewe, 199911 4 active6.56.85.57.5
Nugent, 200012 6 active7.38.36.76.7
(5.8–7.3)(4.8–7.3)
  • N/A, data not available.