作者: M Majewski , R W McCallum
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摘要: Purpose Small intestinal bacterial overgrowth (SIBO) may coexist with irritable bowel syndrome (IBS) and eradication therapy has been reported as effective in reducing IBS symptoms. Aims of this study were to: (1) Assess the clinical profiles patients, who underwent breath testing a glucose substrate--glucose test (GBT); (2) Evaluate hydrogen methane parameters various groups; (3) role inhibition gastric acid contributing to SIBO; (4) Investigate efficacy safety non-absorbable antibiotic rifamixin for symptom relief. Methods 204 patients met ROME II criteria (170F & 34M; mean age 46.4; range 18-88) GBT. 8 these positive GBT treated rifaximin 200 mg, 4 times day 1 month assessments repeated. Results 93 (46%) had 68 (73%) IBS-diarrhea dominant (IBS-D), 12 (13%) constipation (IBS-C) 13 (14%) alternating pattern. 48% SIBO receiving PPI compared 40% negative 61 (66%) produced only hydrogen, 27 (29%) only, 5 (5%) both-hydrogen methane. There more producers IBS-C then IBS-D group (58% vs 28%) while formers (71% 42%). (7F IM; 55, 31-85) received 800 mg/day. Repeat was normal 6 (75%), patient (12.5%) normalized according but remained positive. Symptoms score improved 7 (87.5%) no adverse events noted. Conclusions present nearly half large cohort based on results GBT; Chronic use not associated Methane are likely be constipated; Rifaximin is treatment controlled trials warranted.