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Pagina 1 a partire dal 1338 risultati
The usefulness of capsulated 13C-urea breath test in diagnosis of Helicobacter pylori infection in patients with upper gastrointestinal bleeding.
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BACKGROUND
H. pylori infection and peptic ulcerations and their complications such as bleeding are causally related, but the available methods used in bleeding to confirm active H. pylori lack accuracy. AIM To evaluate the usefulness of 13C-urea breath test (UBT) in diagnosing of H. pylori infection
Accuracy of urea breath test performed immediately after emergency endoscopy in peptic ulcer bleeding.
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OBJECTIVE
The aim of this work is to investigate the accuracy of the urea breath test (UBT) performed immediately after emergency endoscopy in peptic ulcer bleeding (PUB).
METHODS
Urea breath test was carried out right after emergency endoscopy in patients with PUB. The accuracy of this early UBT
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
13C-urea breath test for the diagnosis of Helicobacter pylori infection in bleeding duodenal ulcer.
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Helicobacter pylori (H. pylori) is the main etiologic factor for duodenal ulcer (DU). Bleeding is still a frequent and sometimes severe complication, with unacceptable mortality despite modern therapeutic modalities. The importance of diagnosing and treating H. pylori infection in bleeding DU is
13C-urea breath test during hospitalization for the diagnosis of Helicobacter pylori infection in peptic ulcer bleeding.
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OBJECTIVE
To evaluate the accuracy of (13)C-urea breath test (UBT) to detect Helicobacter pylori infection in patients hospitalized with peptic ulcer bleeding and treated with proton pump inhibitors (PPIs).
METHODS
Patients hospitalized with peptic ulcer bleeding, and treated with omeprazole, had a
Diagnostic utility of nasogastric tube aspiration and the ratio of blood urea nitrogen to creatinine for distinguishing upper and lower gastrointestinal tract bleeding.
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Pharmacological characterization of N-tert-butyl-N'-[2-(4'-methylphenylamino)-5-nitrobenzenesulfonyl]urea (BM-573), a novel thromboxane A2 receptor antagonist and thromboxane synthase inhibitor in a rat model of arterial thrombosis and its effects on bleeding time.
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The present study was undertaken to characterize the antiplatelet and antithrombotic effects of BM-573 [N-tert-butyl-N'-[2-(4'-methylphenylamino)-5-nitrobenzenesulfonyl]urea], an original combined thromboxane receptor antagonist and thromboxane synthase inhibitor in rats, and to determine its
Association between an increase in blood urea nitrogen at 24 hours and worse outcomes in acute nonvariceal upper GI bleeding.
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OBJECTIVE
An increase in blood urea nitrogen (BUN) at 24 hours is a solitary and significant predictor of mortality in patients with acute pancreatitis, which may predict worse outcomes in the similarly resuscitation-requiring condition of acute nonvariceal upper GI bleeding (UGIB). The aim of our
Does blood urea nitrogen level predict severity and high-risk endoscopic lesions in patients with nonvariceal upper gastrointestinal bleeding?
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BACKGROUND
Nonvariceal upper gastrointestinal bleeding (UGIB) is a serious medical condition requiring prompt resuscitation and early endoscopic therapy in those with high-risk endoscopic lesions (HRLs). There are little or no data correlating sole blood urea nitrogen (BUN) level with the severity
Is Blood Urea Concentration an Independent Predictor of Positive Endoscopic Findings in Presumed Upper Gastrointestinal Bleeding?
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Usefulness of the blood urea nitrogen/creatinine ratio in gastrointestinal bleeding.
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This study was conducted to evaluate the blood urea nitrogen/creatinine (BUN/Cr) ratio for distinguishing an upper versus lower source of gastrointestinal (GI) bleeding. Charts of patients who presented to the emergency department (ED) with the diagnosis of GI bleeding from August 1995 to August
Blood urea nitrogen to creatinine concentration in gastrointestinal bleeding: a reappraisal.
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BACKGROUND
The blood urea nitrogen to creatinine ratio (BUN/CREAT) is believed to reliably discriminate upper gastrointestinal bleeding (UGIB) from lower gastrointestinal bleeding (LGIB). However, studies evaluating subsets of bleeders in whom this ratio may have real diagnostic utility are
Availability of blood urea nitrogen/creatinine ratio in gastrointestinal bleeding with melena in children.
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OBJECTIVE
The aims of our study were to evaluate the blood urea nitrogen to creatinine ratio (BUN/Cr ratio) for distinguishing between an upper and lower gastrointestinal bleeding (GIB), and differentiating between the two most common causes of upper gastrointestinal bleeding (UGIB) presenting with
[Diagnosis of the bleeding site in gastrointestinal hemorrhage by the determination of the serum urea and creatinine ratios].
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Serum urea/creatinine (Ur/Cr) ratios were determined in patients showing massive gastrointestinal (GI) bleeding in order to evaluate the bleeding site. In 36 cases of upper GI bleeding, serum Ur/Cr ratios were 119.1 +/- 4.0. The ratios were 54.1 +/- 12.1 and 58.4 +/- 10.3 in 23 cases of lower GI
Association of gastrointestinal hemorrhage with increased blood urea nitrogen and BUN/creatinine ratio in dogs: a literature review and retrospective study.
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Blood urea nitrogen (BUN) and serum creatine concentrations were recorded from the medical records of 52 dogs with clinical evidence for upper gastrointestinal hemorrhage (UGH) at the Colorado State University Veterinary Teaching Hospital between 1988 and 1995. Eighteen of the dogs had melena, 11
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