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Original Paper: Gastrointestinal Oncology

Screening of First Degree Relatives of Patients Operated for Colorectal Cancer: Evaluation of Fecal Calprotectin vs. Hemoccult II

Kristinsson J.a · Nygaard K.a · Aadland E.b · Barstad S.c · Sauar J.d · Hofstad B.g · Stray N.h · Stallemo A.f · Haug B.e · Ugstad M.i · Tøn H.i · Fuglerud P.k

Author affiliations

Departments of aSurgery and bMedicine, Aker University Hospital, Oslo, Departments of Medicine, the Central Hospitals of cRogaland, dTelemark, eEast Agder, fWest Agder and of gUllevaal University Hospital and hDeacon Hospital, Oslo, iNycomed Pharma AS, Oslo and kVerum Medstat Research AS, Lillestrøm, Norway

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Digestion 2001;64:104–110

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Article / Publication Details

First-Page Preview
Abstract of Original Paper: Gastrointestinal Oncology

Published online: October 22, 2001
Issue release date: 2001

Number of Print Pages: 7
Number of Figures: 0
Number of Tables: 7

ISSN: 0012-2823 (Print)
eISSN: 1421-9867 (Online)

For additional information: http://www.karger.com/DIG

Abstract

Fecal calprotectin (CPT) is elevated in the majority of patients with known colorectal cancer (CRC), but the specificity is not clarified. Aim: To evaluate if a CPT test (PhiCal ELISA) was more sensitive than Hemoccult II test in detecting colorectal neoplasia, and to obtain reference values in subjects with normal colonoscopy. To evaluate a possible relation between number and extent of dysplasia of adenomas in first degree relatives of patients with CRC and the stage of the carcinoma in the index casus. Further to study the prevalence of CRC and adenomas in the first degree relatives of patients operated for CRC. Method: In a multicenter study, 253 first degree relatives of patients with CRC, aged 50–75 years (mean age 60 years) underwent colonoscopy after having delivered stool samples and three Hemoccult II slides. Results: In 237 first degree relatives from 148 patients with CRC, polyps were found in 118 (50%). Seventy three (31%) had adenomas and 17 had adenomas ≧10 mm. Five had asymptomatic cancers. The specificity of fecal CPT for adenomas at cut off levels ≤10, ≤15 and ≤20 mg/l were 47.4, 59.6 and 71.1%, respectively (max of three samples). The sensitivity at same cut off levels was 56.2, 45.2 and 31.5% and 4/5 of patients with carcinoma had CPT values >15 mg/l. The sensitivity of Hemoccult II for adenomas was 8%, and 4/5 of patients with carcinoma had negative Hemoccult II. The specificity for adenomas was 95%. Conclusion: Fecal CPT test was more sensitive than Hemoccult II in detecting colorectal neoplasia but the specificity was lower. In a high risk group like first degree relatives of patients with CRC, there are good reasons to consider fecal CPT as a first test in selecting patients for endoscopy.

© 2001 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper: Gastrointestinal Oncology

Published online: October 22, 2001
Issue release date: 2001

Number of Print Pages: 7
Number of Figures: 0
Number of Tables: 7

ISSN: 0012-2823 (Print)
eISSN: 1421-9867 (Online)

For additional information: http://www.karger.com/DIG


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