Linked Life Data

10663892

Source:http://linkedlifedata.com/resource/pubmed/id/10663892

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SubjectPredicateObjectContext
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pubmed-article:10663892pubmed:abstractTextScreening for fecal occult blood by means of guaiac tests has an unsatisfactory sensitivity for the detection of colorectal neoplasms. The immunological determination of human hemoglobin in feces has a higher sensitivity and specificity, but hemoglobin is degraded during its transport through the gastrointestinal tract. We compared the hemoglobin test to a newly developed immuno-chemiluminometric (ILMA) assay for quantifying the hemoglobin-haptoglobin complex in feces which shows high stability against degradation. From each of 621 patients with gastrointestinal complaints before scheduled colonoscopy we collected two 1-ml samples from a single stool; there were no dietary restrictions. The sensitivity for detecting colorectal carcinomas proved 87% with hemoglobin. With the hemoglobin-haptoglobin complex it was 87% at a cutoff level of 1.5 microg/g feces, 83% at 2.0 microg/g feces, and 78% at 2.5 and 3.0 microg/g feces. The sensitivity for detecting large adenomatous polyps was 54% with hemoglobin, 76% with the hemoglobin-haptoglobin complex at a cutoff point of 1.5 microg/g feces, 73% with the hemoglobin-haptoglobin complex at 2.0 and 2.5 microg/g feces, and 65% with the hemoglobin-haptoglobin complex at 3.0 microg/g feces. The optimal cutoff point for the hemoglobin-haptoglobin complex was estimated to be 2.0 microg/g stool. The specificity for hemoglobin (99%) was significantly higher than that for the hemoglobin-haptoglobin complex at 2.0 microg/g feces (96%). Immunological determination of the hemoglobin-haptoglobin complex in feces has a comparable sensitivity as the fecal hemoglobin assay for colorectal carcinomas and a significantly higher sensitivity for adenomatous polyps but a significantly lower specificity. Its use for colorectal cancer prevention is currently being evaluated in a screening study.lld:pubmed
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pubmed-article:10663892pubmed:dateRevised2006-11-15lld:pubmed
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pubmed-article:10663892pubmed:articleTitleDetection of colorectal neoplasms by the highly sensitive hemoglobin-haptoglobin complex in feces.lld:pubmed
pubmed-article:10663892pubmed:affiliationPractice of Gastroenterology, Hauptstrasse 45, D-76684 Ostringen, Germany. dr.andreas.sieg@t-online.delld:pubmed
pubmed-article:10663892pubmed:publicationTypeJournal Articlelld:pubmed
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