Brief Reports
Copyright ©2005 Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. Mar 7, 2005; 11(9): 1361-1364
Published online Mar 7, 2005. doi: 10.3748/wjg.v11.i9.1361
Capsule 13C-urea breath test for the diagnosis of Helicobacter pylori infection
Nan-Jing Peng, Kwok-Hung Lai, Ren-Shyan Liu, Shui-Cheng Lee, Daw-Guey Tsay, Ching-Chu Lo, Huei-Hwa Tseng, Wen-Keui Huang, Gin-Ho Lo, Ping-I Hsu
Nan-Jing Peng, Daw-Guey Tsay, Department of Nuclear Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, China
Kwok-Hung Lai, Ching-Chu Lo, Gin-Ho Lo, Ping-I Hsu, Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, China
Huei-Hwa Tseng, Wen-Keui Huang, Department of Pathology and Laboratory Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, China
Ren-Shyan Liu, Department of Nuclear Medicine, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan, China
Shui-Cheng Lee, Institute of Nuclear Energy Research, Taoyuan, Taiwan, China
Author contributions: All authors contributed equally to the work.
Supported by Grant From the National Science Council, Taiwan NSC 90-2314-B-075B-008
Correspondence to: Dr. Ping-I Hsu, Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, 386, Ta-Chung 1st Road, Kaohsiung 813, Taiwan, China. williamhsup@yahoo.com.tw
Telephone: +886-7-3422121-2075 Fax: +886-7-3461179
Received: July 17, 2004
Revised: July 18, 2004
Accepted: September 9, 2004
Published online: March 7, 2005
Abstract

AIM: To compare the accuracy of capsule 13C-urea breath test (UBT) with conventional invasive methods for the diagnosis of Helicobacter pylori infection.

METHODS: One hundred patients received CLO test, histological examination, culture and 100- or 50-mg capsule UBT for the diagnosis of H pylori infection. H pylori infection was defined as those with positive culture or positive results from both histology and CLO test.

RESULTS: Both the sensitivity and specificity of the 100-mg capsule UBT (n = 50) were 100%. The sensitivity and specificity of the 50-mg capsule UBT (n = 50) were 96.4 and 100%, respectively. Taken together, the accuracy of capsule UBT (n = 100) was higher than that of CLO test, histology and culture (100% vs 92%, 91% and 89%, respectively; P = 0.035, 0.018 and 0.005, respectively). Our data showed that the optimal timing of sampling for 100- and 50-mg capsule UBT was 15-30 and 6-15 min, respectively.

CONCLUSION: Capsule UBT has a higher accuracy compared with biopsy-based tests. It is an ideal method for the diagnosis of H pylori infection.

Keywords: 13C-urea breath test; Capsule; Helicobacter pylori; Oral urease