Lege Artis Medicinae

[CYCLIC RIFAXIMIN TREATMENT IN UNCOMPLICATED COLONIC DIVERTICULAR DISEASE - AN OPEN LABEL STUDY]

SIMON László, SALAMON Ágnes, FELFÖLDI Ferenc, TAM Beatrix, SÁNTA Judit, VADÁSZ Edit

FEBRUARY 21, 2006

Lege Artis Medicinae - 2006;16(02)

[INTRODUCTION - Aquired diverticular disease of the colon is extremely common in developed countries. Poorly absorbing antibiotics may have beneficial effects on symptoms in long-term treatment. An open study was conducted to evaluate the efficiency of rifaximin in the prevention of complaints and recurrent diverticulitis. PATIENTS AND METHODS - Thirty consecutive patients with proven uncomplicated colonic diverticulosis were selected to receive rifaximin 200 mg bid for the first six days of every month, for six months. They were also advised to consume an high-fibre diet. Patients were reviewed on a monthly basis by clinical examinations; changes in symptom variables (lower abdominal pain, upper abdominal pain, bloating, tenesmus, diarrhoea, abdominal tenderness) were evaluated on a 10-point Visual Analogue Scale (VAS), and the presence of acute diverticulitis (abdominal mass, fever, US) was ruled out at every monthly visit. RESULTS - Twenty-nine of 30 patients completed the study. After six months of cyclic rifaximin treatment the global symptom score decreased in all patients compared to the baseline. Acute diverticulitis, other complications or side effects were not observed. CONCLUSIONS - In this open study cyclic administration of a relatively low dose of rifaximin in uncomplicated colonic diverticular disease resulted in the reduction of abdominal complaints and prevented recurrent diverticulitis. This effect might be explained by a reduced metabolic activity of intestinal bacterial flora.]

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