A rapid-release 50-mg tablet-based 13C-urea breath test for the diagnosis of Helicobacter pylori infection.

Abstract

BACKGROUND:

Recently, a rapid-release 100-mg 13C-urea tablet with citrate supplement (Diabact UBT) showed excellent performance in a European population.

AIM:

To investigate the accuracy of a 50-mg tablet-based 13C-urea breath test protocol.

METHODS:

: Consecutive dyspeptic patients referred for upper endoscopy were recruited. 13C-Urea breath test was performed using a 50-mg 13C-urea tablet (Diabact UBT) and compared with the gold standard (rapid urease test and histology). Baseline, 10-min, 20-min and 30-min breath samples were collected in all cases. The cut-off values at each measurement interval were determined by three standard deviations above the mean excess delta 13CO2 excretion of Helicobacter pylori-negative patients.

RESULTS:

Two hundred patients (150 before therapy and 50 after therapy) were available for analysis, with a mean age of 48.4 years, and 99 patients (50%) were H. pylori positive. The sensitivity and specificity of the 50-mg tablet-based 13C-urea breath test at 10 min, 20 min and 30 min were 100% and 98%, 100% and 100%, and 100% and 98%, respectively.

CONCLUSION:

A 20-min, 50-mg tablet-based 13C-urea breath test (Diabact UBT) protocol is highly accurate for the diagnosis of H. pylori infection.

• Authors: W M Wong, S K Lam, K C Lai, K M Chu, H H X Xia, K W Wong, K L Cheung, S K Lin, B C Y Wong
• Journal: Alimentary pharmacology & therapeutics (Aliment Pharmacol Ther) Vol. 17 Issue 2 Pg. 253-7 (Jan 2003) ISSN: 0269-2813 [Print] England
• PMID: 12534410 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Carbon Isotopes
• Drug Combinations
• Tablets
• Citric Acid
• Urea

Topics

• Adolescent
• Adult
• Aged
• Aged, 80 and over
• Breath Tests
• Carbon Isotopes
• Citric Acid (administration & dosage)
• Drug Combinations
• Dyspepsia (microbiology)
• Female
• Helicobacter Infections (diagnosis)
• Helicobacter pylori
• Humans
• Male
• Middle Aged
• Sensitivity and Specificity
• Tablets
• Urea (administration & dosage, analysis)