urease/hemorrhage

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Diagnosis of Helicobacter pylori infection in patients with bleeding ulcer disease: rapid urease test and histology.

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BACKGROUND The endoscopic diagnosis of Helicobacter pylori infection in patients with bleeding peptic ulcer is limited by a decreased sensitivity in standard invasive tests, rapid urease test and histology. There is controversy about the convenience of using one, neither, or both diagnostic

[Utility of urease rapid test for detection of Helicobacter pylori in patients with upper gastrointestinal bleeding from peptic ulcer].

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BACKGROUND Peptic ulcer disease is the main cause of upper gastrointestinal bleeding and Helicobacter pylori is its principal etiology. The sensitivity of the diagnostics tests is low for the detection of H. pylori en the setting of bleeding peptic ulcer. In addition there are different results

Endoscopic diagnosis of Helicobacter pylori infection by rapid urease test in bleeding peptic ulcers: a prospective case-control study.

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OBJECTIVE To assess the efficacy of rapid urease test (RUT) in patients with bleeding ulcers, as well as the effects of visible blood in the stomach and short-term (<24 h) use of standard-dose proton pump inhibitor (PPI) on RUT sensitivity. BACKGROUND The sensitivity of RUT in the diagnosis of

Diagnosis of Helicobacter pylori infection using urease rapid test in patients with bleeding duodenal ulcer: influence of endoscopic signs and simultaneous corporal and antral biopsies.

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BACKGROUND The sensitivity of invasive diagnostic methods for Helicobacter pylori (H. pylori) infection, particularly of urease rapid test, is decreased in cases of gastroduodenal ulcer and upper gastrointestinal bleeding. OBJECTIVE To assess the influence of blood in the stomach or recent bleeding

A negative rapid urease test is unreliable for exclusion of Helicobacter pylori infection during acute phase of ulcer bleeding. A prospective case control study.

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BACKGROUND The reliability of the rapid urease test has not been proven in patients with peptic ulcer bleeding. Some studies show bad diagnostic results with the rapid urease test for gastrointestinal bleeding. OBJECTIVE To evaluate the efficacy of the rapid urease test in patients with bleeding

Increasing biopsy number and sampling from gastric body improve the sensitivity of rapid urease test in patients with peptic ulcer bleeding.

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BACKGROUND Previous studies demonstrated that the sensitivity of rapid urease test (RUT) for diagnosis of Helicobacter pylori infection decreased during peptic ulcer bleeding. OBJECTIVE We designed this study and tried to find a better method to improve the detection rate of H. pylori infection at

Rapid urease tests lack sensitivity in Helicobacter pylori diagnosis when peptic ulcer disease presents with bleeding.

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OBJECTIVE The eradication of Helicobacter pylori (H. pylori) in patients with bleeding peptic ulcer disease (PUD) decreases the rate of ulcer rebleeding. Although all methods for H. pylori diagnosis have been extensively evaluated in uncomplicated PUD the efficacy of the commonly used rapid urease

Rapid urease test is less sensitive than histology in diagnosing Helicobacter pylori infection in patients with non-variceal upper gastrointestinal bleeding.

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OBJECTIVE The validity of the rapid urease (CLO) test to diagnose Helicobacter pylori infection in patients with bleeding ulcers has been questioned. The aim of this paper is to evaluate the validity of the CLO test in comparison with histology in diagnosing H. pylori infection in patients with

False-negative biopsy urease test in bleeding ulcers caused by the buffering effects of blood.

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OBJECTIVE A false-negative biopsy urease test (BUT) is common in Helicobacter pylori-associated bleeding peptic ulcers. Although blood in the stomach is thought to interfere with the biopsy urease test, the underlying mechanism remains unknown. This in vitro experiment sought to identify the blood

Dual-priming oligonucleotide-based multiplex PCR using tissue samples from the rapid urease test kit for the detection of Helicobacter pylori in bleeding peptic ulcers.

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BACKGROUND In patients with peptic ulcer bleeding (PUB), diagnostic tests for Helicobacter pylori (H. pylori) infection have low sensitivity. The aim of our study was to investigate the diagnostic yield of dual-priming oligonucleotide-based multiplex (DPO)-PCR using tissue samples from the rapid

False-negative rapid urease test in acute upper GI bleeding: is human plasma alone responsible?

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[Urease rapid test in the diagnosis of Helicobacter pylori in upper digestive hemorrhage caused by peptic ulcer].

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Diagnostics of Helicobacter pylori infection in patients with peptic ulcer bleeding.

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BACKGROUND In peptic ulcer bleeding, the sensitivity of H. pylori tests, in particular of the rapid urease test (RUT), has been reported to be insufficient. OBJECTIVE To validate the RUT, serology and the urea breath test were carried out in patients with bleeding peptic ulcers, and to study the

Diagnosis of Helicobacter pylori in bleeding peptic ulcer patients, evaluation of urea-based tests.

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OBJECTIVE The prevalence of Helicobacter pylori (Hp) has been reported to be lower in patients with bleeding peptic ulcers than in patients with nonbleeding peptic ulcers. This might be due to inaccuracy of the urease-based diagnostic tests when used in patients with bleeding peptic ulcers. The aims

Polymerase chain reaction: a sensitive method for detecting Helicobacter pylori infection in bleeding peptic ulcers.

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OBJECTIVE To assess the sensitivity and specificity of polymerase chain reaction (PCR) in detecting Helicobacter pylori (H pylori) infection in patients with bleeding peptic ulcers, and to compare its diagnostic efficacy with other invasive and non-invasive tests. METHODS From April to September

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