Increasing Biopsy Number and Sampling from Gastric Body Improve the Sensitivity of Rapid Urease Test in Patients with Peptic Ulcer Bleeding

Overview

Journal Dig Dis Sci

Specialty Gastroenterology

Date 2014 Sep 13

PMID 25213078

Citations 10

Authors

Tzong-Hsi Lee

Chien-Chu Lin

Chen-Shuan Chung

Cheng-Kuan Lin

Cheng-Chao Liang

Kuang-Chau Tsai

Affiliations

Soon will be listed here.

Abstract

Background: Previous studies demonstrated that the sensitivity of rapid urease test (RUT) for diagnosis of Helicobacter pylori infection decreased during peptic ulcer bleeding.

Aim: We designed this study and tried to find a better method to improve the detection rate of H. pylori infection at the same session of endoscopic diagnosis of peptic ulcer bleeding.

Methods: We prospectively enrolled 116 patients with peptic ulcer bleeding. These patients received intravenous proton pump inhibitor and then received upper gastrointestinal endoscopy within 24 h after arrival. We took one piece of biopsy from gastric antrum (Group 1), four pieces from gastric antrum (Group 2), and one piece from the gastric body (Group 3) for three separate RUTs, respectively. (13)C-urease breath test was used as gold standard for diagnosis of H. pylori infection.

Results: There were 74 patients (64 %) with positive (13)C-urease breath test. Among these 74 patients, 45 patients had positive RUT (sensitivity: 61 %) in Group 1; 55 patients had positive RUT (sensitivity: 74 %) in Group 2; 54 patients had positive RUT (sensitivity: 73 %) in Group 3. There were significant differences between Group 1 and Group 2 (p = 0.02) and between Group 1 and Group 3 (p = 0.022).

Conclusions: The sensitivity of RUT was 61 % during peptic ulcer bleeding. The sensitivity of RUT can be increased significantly by increased biopsy number from gastric antrum or biopsy from gastric body.

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