A study of the methodological and clinical validity of the combined lactulose hydrogen breath test with scintigraphic oro‐cecal transit test for diagnosing small intestinal bacterial overgrowth in <scp>IBS</scp> patients

Abstract

Combined LHBT/SOCT testing using a H2 5 ppm cutoff may identify a subgroup of IBS patients with SIBO. Pilot data examining the clinical response to rifaximin suggest that this subset of IBS patients may benefit more than those with a normal test.