Mucosal polymerase chain reaction for diagnosing Helicobacter pylori infection in patients with bleeding peptic ulcers

Hwai Jeng Lin, Wen Ching Lo, Chin Lin Perng, Guan Ying Tseng, Anna Fen Yau Li, Yueh Hsing Ou

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Aim: Helicobacter pylori (H pylori) has been linked to chronic gastritis, peptic ulcers, gastric cancer and MALT-lymphoma. Conventional invasive tests are less sensitive than noninvasive tests in diagnosing H pylori infection in patients with bleeding peptic ulcers. Polymerase chain reaction is a sensitive and accurate method for diagnosing H pylori infection. The aim of this study was to evaluate the diagnostic role of mucosal polymerase chain reaction for H pylori infection in patients with bleeding peptic ulcers. Methods: In patients with bleeding, non-bleeding peptic ulcers and chronic gastritis, we checked rapid urease test, histology, bacterial culture and mucosal polymerase chain reaction for detecting H pylori infection. Positive H pylori infection was defined as positive culture or both a positive histology and a positive rapid urease test. For mucosal polymerase chain reaction of H pylori, we checked vacA (s1a, s1b, s1c, s2, m1, m1T, m2), iceA1, iceA2 and cag A. Results: Between October 2000 and April 2002, 88 patients with bleeding peptic ulcers (males/females: 60/28, gastric ulcers/duodenal ulcers: 55/33), 81 patients with non-bleeding peptic ulcers (males/females: 54/27, gastric ulcers/duodenal ulcers: 45/36) and 37 patients with chronic gastritis (males/females: 24/13) were enrolled in this study. In patients with bleeding peptic ulcers, non-bleeding peptic ulcers and chronic gastritis, 45 patients (51%), 71 patients (88%) and 20 patients (54%) respectively were found to have positive H pylori infection (P

Original languageEnglish
Pages (from-to)382-385
Number of pages4
JournalWorld Journal of Gastroenterology
Volume11
Issue number3
Publication statusPublished - Jan 21 2005
Externally publishedYes

Fingerprint

Helicobacter Infections
Peptic Ulcer
Helicobacter pylori
Hemorrhage
Polymerase Chain Reaction
Gastritis
Urease
Stomach Ulcer
Duodenal Ulcer
Histology
Marginal Zone B-Cell Lymphoma
Stomach Neoplasms

Keywords

  • Bleeding peptic ulcers
  • Helicobacter pylori infection
  • Mucosal polymerase chain reaction

ASJC Scopus subject areas

  • Gastroenterology

Cite this

Mucosal polymerase chain reaction for diagnosing Helicobacter pylori infection in patients with bleeding peptic ulcers. / Lin, Hwai Jeng; Lo, Wen Ching; Perng, Chin Lin; Tseng, Guan Ying; Li, Anna Fen Yau; Ou, Yueh Hsing.

In: World Journal of Gastroenterology, Vol. 11, No. 3, 21.01.2005, p. 382-385.

Research output: Contribution to journalArticle

Lin, Hwai Jeng ; Lo, Wen Ching ; Perng, Chin Lin ; Tseng, Guan Ying ; Li, Anna Fen Yau ; Ou, Yueh Hsing. / Mucosal polymerase chain reaction for diagnosing Helicobacter pylori infection in patients with bleeding peptic ulcers. In: World Journal of Gastroenterology. 2005 ; Vol. 11, No. 3. pp. 382-385.
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N2 - Aim: Helicobacter pylori (H pylori) has been linked to chronic gastritis, peptic ulcers, gastric cancer and MALT-lymphoma. Conventional invasive tests are less sensitive than noninvasive tests in diagnosing H pylori infection in patients with bleeding peptic ulcers. Polymerase chain reaction is a sensitive and accurate method for diagnosing H pylori infection. The aim of this study was to evaluate the diagnostic role of mucosal polymerase chain reaction for H pylori infection in patients with bleeding peptic ulcers. Methods: In patients with bleeding, non-bleeding peptic ulcers and chronic gastritis, we checked rapid urease test, histology, bacterial culture and mucosal polymerase chain reaction for detecting H pylori infection. Positive H pylori infection was defined as positive culture or both a positive histology and a positive rapid urease test. For mucosal polymerase chain reaction of H pylori, we checked vacA (s1a, s1b, s1c, s2, m1, m1T, m2), iceA1, iceA2 and cag A. Results: Between October 2000 and April 2002, 88 patients with bleeding peptic ulcers (males/females: 60/28, gastric ulcers/duodenal ulcers: 55/33), 81 patients with non-bleeding peptic ulcers (males/females: 54/27, gastric ulcers/duodenal ulcers: 45/36) and 37 patients with chronic gastritis (males/females: 24/13) were enrolled in this study. In patients with bleeding peptic ulcers, non-bleeding peptic ulcers and chronic gastritis, 45 patients (51%), 71 patients (88%) and 20 patients (54%) respectively were found to have positive H pylori infection (P

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