Immunochemical Fecal Occult Blood Test for Detection of Advanced Colonic Adenomas and Colorectal Cancer : Comparison with Colonoscopy Results

Background. Fecal immunochemical tests (FITs) have been used for colorectal cancer (CRC) screening in several countries. There is lack of information concerning diagnostic performances of this method in Brazil. Methods. Patients scheduled for elective colonoscopy provided one stool sample one week b...

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Bibliographic Details
Published in:Gastroenterology research and practice 2013-01, Vol.2013 (2013), p.1-5
Main Authors: Viana Freitas, Bianca Rosa, Nagasako, Cristiane Kibune, Pavan, Celia Regina, Silva Lorena, Sônia Letícia, Guerrazzi, Fabio, Saddy Rodrigues Coy, Cláudio, Ayrizono, Maria de Lourdes S., Mesquita, Maria Aparecida
Format: Article
Language:English
Subjects:
Colonoscopy
Colorectal cancer
Diagnosis
Disease
Feces
Mortality
Occult blood
Studies
Tumors
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Summary:Background. Fecal immunochemical tests (FITs) have been used for colorectal cancer (CRC) screening in several countries. There is lack of information concerning diagnostic performances of this method in Brazil. Methods. Patients scheduled for elective colonoscopy provided one stool sample one week before colonoscopy. The accuracy of a qualitative FIT for detection of CRC and advanced adenomas was determined. Results. Overall 302 patients completed the study. Among them, 53.5% were high risk patients referred for screening or surveillance. Nine (3%) CRCs and 11 (3.6%) advanced adenomas were detected by colonoscopy. Sensitivity and specificity for CRC were, respectively, 88.9% and 87.6%. For advanced adenomas, sensitivity was 63.6% and specificity 87.6%. Conclusion. Our results showed good sensitivity and specificity of the FIT for detecting advanced neoplasias. This method may be a valuable tool for future screening programs in Brazil.
ISSN:1687-6121
1687-630X
DOI:10.1155/2013/384561