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  • Title: A comparative study of immunochemical fecal tests for detection of colorectal adenomatous polyps.
    Author: Nakama H, Fattah A, Zhang B, Uehara Y, Wang C.
    Journal: Hepatogastroenterology; 2000; 47(32):386-9. PubMed ID: 10791196.
    Abstract:
    BACKGROUND/AIMS: This study was conducted to assess the diagnostic validity of new different immunochemical fecal occult blood tests for colorectal adenomatous polyps, including reversed passive hemagglutination test (Immudia-HemSp), combination monoclonal antibody guaiac test (Monohaem), latex agglutination inhibition test (Iatro Hemcheck), and latex agglutination tests (LA Hemochaser, OC-Hemodia). METHODOLOGY: Two hundred and fifty patients with colorectal adenomatous polyps 1.0 cm or larger in diameter and the same number of healthy controls served as subjects for the study. Each subject received a set of 5 immunochemical tests within 3 consecutive days, and sensitivities and specificities of these tests were evaluated. RESULTS: Mean sensitivity and specificity in a set of 5 immunochemical tests were 47.6% and 95.8%, respectively. Sensitivities and specificities of 5 different immunochemical tests were calculated as 47.6% and 96.8% for Immudia-Hem Sp, 46.8% and 95.2% for Monohem, 46.4% and 95.2% for Iatro Hemchek, 48.0% and 96.4% for LA Hemochaser, and 49.2% and 95.6% for OC-Hemodia, respectively, showing no significant difference in sensitivity and specificity among the 5 tests. CONCLUSIONS: These findings suggest that there is no difference in the degree of accuracy for colorectal adenomatous polyps among several types of immunochemical fecal occult blood test.
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