Faster Detection of Helicobacter pylori Infection by 13 C-Urea Breath Test. Comparing Short versus Standard Sampling Time

The urea breath test for Helicobacter pylori.

Appropriate Timing of the C-Urea Breath Test to Establish Eradication of Helicobacter pylori Infection

METHODS: Patients with active Helicobacter pylori infection at four medical centers received proton pump inhibitorbased triple or quadruple therapy for 10–14 days. Patients underwent the C-UBT 2 and 4–6 wk after the completion of therapy. A positive test was defined as CO2 excretion of .200 dpm, a negative test as ,50 dpm, and an equivocal test as .50 but ,200 dpm. Performance characteristics o...

Diagnosis of Helicobacter pylori by carbon-13 urea breath test using a portable mass spectrometer

CONTEXT In the non-invasive detection of markers of disease, mass spectrometry is able to detect small quantities of volatile markers in exhaled air. However, the problem of size, expense and immobility of conventional mass spectrometry equipment has restricted its use. Now, a smaller, less expensive, portable quadrupole mass spectrometer system has been developed. Helicobacter pylori has been ...

The C urea breath test in the diagnosis of Helicobacter pylori infection

The urea breath test (UBT) is one of the most important non-invasive methods for detecting Helicobacter pylori infection. The test exploits the hydrolysis of orally administered urea by the enzyme urease, which H pylori produces in large quantities. Urea is hydrolysed to ammonia and carbon dioxide, which diVuses into the blood and is excreted by the lungs. Isotopically labelled CO2 can be detec...

Pharmaceutical interference with the [14C] carbon urea breath test for the detection of Helicobacter pylori infection.

Helicobacter pylori bacteria reside in the mucosal lining of the stomach where, due to a variety of factors, the infection predisposes patients to peptic ulcer disease. Detection of H. pylori is important in the treatment and follow-up of patients with peptic ulcer disease and the urea breath test is the method of choice. This article will briefly review the methods for diagnosing H. pylori, em...