Digestive Diseases and Sciences

, Volume 25, Issue 1, pp 53–58

Comparison of the one-gramd-[14C]xylose breath test to the [14C]bile acid breath test in patients with small-intestine bacterial overgrowth

Authors

  • Charles E. King
    • Gastroenterology sectionVeterans Administration Medical Center
    • the Departments of Medicine, Radiology, and Medical MicrobiologyUniversity of Florida College of Medicine
  • Phillip P. Toskes
    • Gastroenterology sectionVeterans Administration Medical Center
    • the Departments of Medicine, Radiology, and Medical MicrobiologyUniversity of Florida College of Medicine
  • Tomas R. Guilarte
    • Gastroenterology sectionVeterans Administration Medical Center
    • the Departments of Medicine, Radiology, and Medical MicrobiologyUniversity of Florida College of Medicine
  • Erhard Lorenz
    • Gastroenterology sectionVeterans Administration Medical Center
    • the Departments of Medicine, Radiology, and Medical MicrobiologyUniversity of Florida College of Medicine
  • Susan L. Welkos
    • Gastroenterology sectionVeterans Administration Medical Center
    • the Departments of Medicine, Radiology, and Medical MicrobiologyUniversity of Florida College of Medicine
Original Articles

DOI: 10.1007/BF01312733

Cite this article as:
King, C.E., Toskes, P.P., Guilarte, T.R. et al. Digest Dis Sci (1980) 25: 53. doi:10.1007/BF01312733

Abstract

In twelve patients with culture-proven bacterial overgrowth of the small intestine, the ability of a newly-developed one-gramd-[14C]xylose breath test to detect bacterial overgrowth was compared to that of the [14C]bile acid breath test. All patients manifested excessive production of breath14CO2 after the administration of one gram [14C]xylose, with 83% of the patients being abnormal within the first hour of testing. In contrast, during the [14C]bile acid breath test, four of the twelve patients had no period of excessive14CO2 production (above the 95% confidence range of controls). Nutrient malabsorption (fat, cobalamin, xylose) was seen with both true-positive and false-negative bile acid breath tests. The one gram [14C]xylose breath test, utilizing a substrate with more predominant absorption in the proximal small intestine and which can be catabolized by Gram-negative aerobic bacteria, appears to have a greater degree of sensitivity and specificity than the bile acid breath test in detecting the presence of small-intestine bacterial overgrowth.

Download to read the full article text

Copyright information

© Digestive Disease Systems, Inc. 1980