BACKGROUND: Faecal calprotectin and lactoferrin increasingly serve as surrogate markers of disease activity in IBD. Data on the correlation of these markers with simple endoscopic score for Crohn's disease (SES-CD) and with histological findings are as yet limited. Aim To study the correlation of faecal calprotectin and lactoferrin with SES-CD and histology. METHODS: During 87 consecutive ileocolonoscopies, SES-CD was calculated and biopsy specimens were obtained from the ileum, colon and rectum. Faecal calprotectin and lactoferrin were measured. RESULTS: In ileocolonic or colonic disease, both faecal calprotectin and lactoferrin correlated significantly with colon SES-CD (P < 0.001) and colon histology (P < 0.001). In patients with normal calprotectin or lactoferrin levels, endoscopic and histology scores were significantly lower than in those with elevated concentrations (P < 0.001). In ileal CD, ileal SES-CD correlated with histology (P < 0.001), but not with faecal calprotectin (P = 0.161) or lactoferrin (P = 0.448). CONCLUSION: In ileocolonic and colonic disease, endoscopic score SES-CD and histological findings correlated significantly with faecal calprotectin and lactoferrin. A normal faecal-marker concentration was a reliable surrogate marker for endoscopically and histologically inactive CD. Ileal endoscopic score and histological findings failed, however, to correlate with faecal markers.
BACKGROUND: Faecal calprotectin and lactoferrin increasingly serve as surrogate markers of disease activity in IBD. Data on the correlation of these markers with simple endoscopic score for Crohn's disease (SES-CD) and with histological findings are as yet limited. Aim To study the correlation of faecal calprotectin and lactoferrin with SES-CD and histology. METHODS: During 87 consecutive ileocolonoscopies, SES-CD was calculated and biopsy specimens were obtained from the ileum, colon and rectum. Faecal calprotectin and lactoferrin were measured. RESULTS: In ileocolonic or colonic disease, both faecal calprotectin and lactoferrin correlated significantly with colon SES-CD (P < 0.001) and colon histology (P < 0.001). In patients with normal calprotectin or lactoferrin levels, endoscopic and histology scores were significantly lower than in those with elevated concentrations (P < 0.001). In ileal CD, ileal SES-CD correlated with histology (P < 0.001), but not with faecal calprotectin (P = 0.161) or lactoferrin (P = 0.448). CONCLUSION: In ileocolonic and colonic disease, endoscopic score SES-CD and histological findings correlated significantly with faecal calprotectin and lactoferrin. A normal faecal-marker concentration was a reliable surrogate marker for endoscopically and histologically inactive CD. Ileal endoscopic score and histological findings failed, however, to correlate with faecal markers.
Authors: Jesica C Makanyanga; Doug Pendsé; Nikolaos Dikaios; Stuart Bloom; Sara McCartney; Emma Helbren; Elaine Atkins; Terry Cuthbertson; Shonit Punwani; Alastair Forbes; Steve Halligan; Stuart A Taylor Journal: Eur Radiol Date: 2013-09-12 Impact factor: 5.315