PMID: 9431899Feb 12, 1998Paper

Qualitative and semi-quantitative value of a modified 13C-urea breath test for identification of Helicobacter pylori infection

European Journal of Gastroenterology & Hepatology
V EllenriederG Adler

Abstract

The 13C-urea breath test (13C-UBT) is the method of choice in evaluating the success of therapy for eradication of Helicobacter pylori infection. For reasons of cost efficiency and practicability, urea dose and measurement duration have been reduced and the DOB (delta over baseline) cutoff level with the highest predictive value determined. Further, the efficacy of the modified 13C-UBT as a semi-quantitative test method was evaluated by comparison with histologically determined bacterial infiltration. In a prospective study, a modified 13C-UBT with reduced urea dose (75 mg) and shortened measurement duration (30 min) was administered to 145 patients. The DOB cutoff with the highest predictive value was determined using relative operating characteristic analysis. Reference methods included histology, bacterial culture and the rapid urease test. The DOB value was compared with the histologically determined grade of bacterial infiltration and the correlation evaluated using the Spearman ranking method. Reduction of the DOB cutoff level from 5.0 per thousand to 3.5 per thousand led to significant improvement in sensitivity (78.9% vs. 91.2%) and accuracy (88.6% vs. 90.2%) of the 13C-UBT. Only five of 57 infected patients were incorr...Continue Reading

Citations

Jul 12, 2011·Journal of Orofacial Orthopedics = Fortschritte Der Kieferorthopädie : Organ/official Journal Deutsche Gesellschaft Für Kieferorthopädie·Andrea WichelhausGünter Bode
Aug 13, 1998·Alimentary Pharmacology & Therapeutics·V EllenriederB Glasbrenner
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